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Austrocarausius Brock, 2000 is a stick insect (Phasmatodea: Lonchodidae) genus containing two species restricted to the tropical rainforests of northern Queensland. Recent specimen collections between the two species’ type localities, Lizard Island and Rockhampton, have suggested that Austrocarausius might represent more than the two nominal species. Here, we apply morphological and molecular analyses to revise the taxonomy of this genus. Using both field-collected and historic museum samples, we developed morphological species hypotheses and descriptions. Genetic sequencing of mitochondrial COI and 16S were undertaken for species delimitation and phylogenetic analysis, including an estimate of the evolutionary timescale of the genus. Based on these results, we propose nine new Austrocarausius species, increasing the number of species in the genus to eleven: A. nigropunctatus (Kirby, 1896), A. mercurius (Stål, 1877), A. coronatus sp. nov., A. decorus sp. nov., A. eirmosus sp. nov., A. gasterbulla sp. nov., A. tuberosus sp. nov., A. macropunctatus sp. nov., A. truncatus sp. nov. A. waiben sp. nov. and A. walkeri sp. nov. Our results suggest Austrocarausius species diversified over the last c. 25–70 Ma, resulting in the now endemic distributions in the tropical rainforests of the central and northern Queensland coasts. This is the first integrative systematic study of an Australian phasmid genus, combining morphological, molecular and biogeographical methods. Additional species of Austrocarausius likely remain undescribed as can be inferred from methodical sampling of rainforest patches along the Queensland coast.

Additional file 6: Supplementary Figure S1–S13. Fig. S1. Maximum likelihood; amino acid sequences; 70 taxa; 3145 gene partitions. Table 1 – Analysis 1 Fig. S2. Maximum likelihood; amino acid sequences; 70 taxa; 1130 genes; 132 metapartitions. Table 1 –Analysis 2. Fig. S3. Maximum likelihood; amino acid sequences; 70 taxa; 1130 genes; 132 metapartitions; incorporating protein mixture model LG4X. Table 1 – Analysis 3. Fig. S4. Maximum likelihood; amino acid sequences; 70 taxa; 1130 genes; 132 metapartitions; LG4X model. Table 1 – Analysis 4. Fig. S5. Maximum likelihood; amino acid sequences; 70 taxa; 1061 genes; reduced to sites with > 80% coverage. Table 1 – Analysis 5. Fig. S6 Maximum likelihood; nucleotide sequences; 70 taxa; 3145 gene partitions. Table 1 – Analysis 7. Fig. S7. Maximum likelihood; nucleotide sequences; 70 taxa; 1130 genes; 736 partitions. Table 1 – Analysis 8. Fig. S8. MSC ASTRAL species tree; amino acid sequences; 600 gene partitions with highest information content; ML gene trees with bootstraps. Table 1 – Analysis 9. Fig. S9. MSC ASTRAL species tree; nucleotide sequences; 600 gene partitions with highest information content; ML gene trees with bootstraps. Table 1 – Analysis 10. Fig. S10. MSC ASTRAL species tree; amino acid sequences; 276 gene partitions > 600 aa in length; ML gene trees with bootstraps. Table 1 – Analysis 11. Fig. S11. MSC ASTRAL species tree; amino acid sequences; 1130 gene partitions. Table 1 – Analyses 12. Fig. S12. MSC ASTRAL species tree; nucleotide sequences; 1130 gene partitions. Table 1 – Analysis 13. Fig. S13. MSC ASTRAL species tree; nucleotide sequences; 600 gene partitions with highest information content. Table 1 – Analyses 14.

Additional file 10: Supplementary Methods. Taxon sampling, sequencing and assembly; Orthology assignment of transcripts; Filtering, alignment, and generation of datasets; Partitioning and model selection; Four-cluster Likelihood Mapping; Multispecies coalescence [90–101].

Additional file 5: Table S4. Attributes and statistics for data matrices and ML analyses.

Additional file 7: Supplementary Figure S14-S24. Fig. S14. MARE Matrix Saturation graphics, amino acid sequences; 3145 gene partitions and 1131 gene partitions. Fig. S15. AliStat pairwise comparison of matrix completeness; amino acid sequences; 3145 gene partitions. Table 1 – Analysis 1. Fig. S16. AliStat pairwise comparison of matrix completeness; amino acid sequences; 1130 gene partitions. Table 1 – Analyses 2, 3, 4. Fig. S17. AliStat pairwise comparison of matrix completeness; amino acid sequences; 1061 gene partitions; reduced to sites with > 80% coverage. Table 1 – Analysis 5. Fig. S18. AliStat pairwise comparison of matrix completeness; nucleotide sequences; 3145 gene partitions. Table 1 – Analysis 7. Fig. S19. AliStat pairwise comparison of matrix completeness; nucleotide sequences; 1130 gene partitions. Table 1 –Analysis 8. Fig. S20. SymTest rectangular heat map indicating model violations of SRH conditions; amino acid sequences; 3145 gene partitions. Table 1 – Analysis 1. Fig. S21. SymTest rectangular heat map indicating model violations of SRH conditions; amino acid sequences; 1130 gene partitions. Table 1 – Analysis 2, 3, 4. Fig. S22. SymTest rectangular heat map indicating model violations of SRH conditions; amino acid sequences; 1061 gene partitions; reduced to sites with > 80% coverage. Table 1 – Analysis 5. Fig. S23. SymTest rectangular heat map indicating model violations of SRH conditions; nucleotide sequences; 3145 genes; including all three codon positions. Fig. S24. SymTest rectangular heat map indicating model violations of SRH conditions; nucleotide sequences; 1130 genes; including first and second codon positions. Table 1 – Analysis 8.

Additional file 9: Supplementary Tables S6–7. Table S6. Groups of terminals used for Four-cluster Likelihood Mapping test of the relationships between lineages, including model organisms. Results in Fig. 2 and Table 3. Table S7. Groups of terminals used for Four-cluster Likelihood Mapping test of the relationships between Sphaeroceroidea and other major lineages. Results in Fig. 3 and Table 4.

5. Meomyia kochae sp. nov. (Figs 11, 12) urn:lsid:zoobank.org:act: 925ECE0A-F65C-4870-9BDA-058A7E9109E0 Type specimens. Holotype ♂Australia, Qld., Dunwich, Sep 1926, Mackerras (ANIC). Paratypes ♂ (1) ♀ (1), Australia, Qld., Dunwich, Sep 1926, Mackerras (ANIC). Other specimens examined. Australia, NSW, ♂ (3) ♀ (1), Broadwater Nat [ional] Park, 6 Sep 1981, D Yeates (QM). ♂Broadwater, 22 Dec 1981, D Yeates (QM). Qld., ♂ (4), North Stradbroke Is [land], Brown Lake, 16 Sep 1981, MA Schneider (QM). ♂North Stradbroke Island, Brown Lake, 16 Sep 1981, G Daniels (QM). ♂ (3) ♀ (1), N Stradbroke Is [land], Brown Lake, 21-24 Sep 1984, DK Yeates (QM). ♂ (2), Bribie Is [lan]d, 29 Aug 1920. H Hacker (QM). ♂Tibrogargan C [ree]k, 24 Aug 1959. FH Perkins (QM). ♂Caloundra, 23 Sep 1929 (QM). ♂Caloundra, 17 Aug 1934, FA Perkins (QM). ♂ (10) ♀ (20), 26°02'19"S153° 04'57"E, Great Sandy Nat [ional] P[ar]k, Cooloola Section, 1-5 Oct 1996, DK Yeates, C Lambkin, S Winterton (QM). ♀ (2), 24°52'26"S148°01'19"E, Carnarvon Nat [ional] Park, Mt Moffatt Section, Kenniffs Cave, 840m, 22 Nov 1995, DK Yeates (QM). ♂Carnarvon Nat [ional] P[ar]k, Mt Moffatt sect[ion], Marlong Plain, 25 Sep 1986, DK Yeates (QM). ♂ (1) ♀ (1), 7.6km N Dunwich, 16 Sep 1981, MA Schneider (QM). Diagnosis. Posterior margin of scutum without black band. Posterior margin of scutellum with brownish yellow setae. Lateral margin of male gonocoxite nearly straight. Apex of epiphallus bifid, branch slender and acute apically. Description. Male. Body length 7.1–8.6 mm, wing length 7.5–9.0 mm. Head. Head about 1.8 x wider than long, mostly black with thick pale pruinescence and covered in white hairs and scales, and admixed with brown hairs. Eye holoptic. Frons long, 4.3 x length of ocellar tubercle, upper narrow and black; lower half triangular, 1.1 x length of upper half, with thick pale pruinescence and white scales, admixed with few brown hairs. Ocellar tubercle slightly raised, blackish brown to black with sparse grey pruinescence, with brown hairs admixed with few white scales. Face with thick pale pruinescence and long white hairs. Gena with thick pale pruinescence and sparse white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick pale pruinescence and long white hairs. Posterior eye margin slightly concave. Antennal scape and pedicel brown with thick pale pruinescence, scape with long black hairs on dorsal half, and white hairs on ventral half, pedicel with short black hairs on dorsal half, and with short white hairs on ventral half; flagellum black without pruinescence, bare. Scape 2.8 x as long as wide, and 2.7 x as long as pedicel, uniform from base to apex. Pedicel 1.1 x as long as wide. Flagellum 9.2 x as long as wide, 2.2 x as long as scape + pedicel, 3.0 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus (Fig. 11c). Palpus not extending beyond oral cavity, black with short brown hairs, one-segmented, without palpal pit. Mouthparts slender, 3.7 x as long as eye length, 2.1 x as long as head length, labellum large and fleshy (Fig. 11h). Thorax. Integumental colour of scutum mostly black with sparse grey pruinescence. Scutum covered with white hairs admixed with some black hairs, hairs denser on anterior half, posterior half with more black hairs, postalar callus with five brownish yellow setae and with admixed white and black hairs. Five brownish yellow notopleural setae present. Scutellum black with thick grey pruinescence, pruinescence denser on the margin, covered with admixed white and black hairs, posterior margin with brownish yellow setae. Pleura black with thick pale pruinescence, mostly covered in long white hairs, except anterodorsal area of anepisternum with some pale yellow setae, anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs mostly yellow, except tarsi dark brown; femora mostly covered in white scales and hairs, except anterior face of fore and mid femora admixed with black scales; tibia mostly covered in black scales, except posterior face of fore and mid tibia with white scales. Fore femur with one anterior bristle on median area; mid femur with one row of anterior bristles; hind femur with one row of anteroventral bristles, and more separate bristles on apical half. Bristles and other hairs on legs brown. Fore tibia 2.0 x longer than fore basitarsus, mid tibia 2.4 x longer than mid basitarsus, hind tibia 2.3 x longer than hind basitarsus. Wings. Wing membrane hyaline. Cell r 5 closed; cell br shorter than cell bm, crossvein r-m arising from base of cell dm; crossvein m-m 0.6 x as long as crossvein r-m; cell cua open (Fig. 11d). Haltere stem and knob blackish brownish yellow. Abdomen. Integumental colour of tergites black mostly with thick grey pruinescence [hairs largely lost in examined specimens]. Tergite 1 with dense white hairs; tergite 2 with white hairs on anterior half and black hairs on posterior half; tergite 4 with white hairs; tergites 5–6 with dense black hairs; tergite 7 with dense white hairs; tergite 8 with dense white hairs. Sternites black except posterior brown, with thick pale pruinescence, and with white hairs. Genitalia. Epandrium anterior margin strongly concave, posterior margin nearly straight (Fig. 12d). Lateral margin of gonocoxite nearly straight (Figs 12 a–b); apex of epiphallus bifid, branch slender and acute apically (Fig. 12c). Female. Body length 11.3 mm, wing length 11.8 mm. Very similar to male, except frons black with thick pale pruinescence, 4.3 x as wide as ocellar tubercle, frons with short white scales admixed with brownish yellow setae (Fig. 11k). Occiput covered in white hairs admixed with brownish yellow setae. Eight acanthophorite spines present on each side of tergite 9+10 (Fig. 12g). Remarks. Meomyia kochae sp. nov. is similar to Meomyia penicillata, but the posterior margin of scutellum with brownish yellow setae, the lateral margin of male gonocoxite nearly straight, and the male epiphallus with acute dorsal branch. Distribution. Australia (Qld.). Etymology. This species is named after Karin Koch, who is a Collection Manager for QM, working with Christine Lambkin.

4. Meomyia hortorum sp. nov. (Figs 9, 10, 27a) urn:lsid:zoobank.org:act: FBE48882-49F7-43D9-9F30-B1137D54DE2E Type specimens. Holotype ♂Australia, WA, -32.0974 116.5923, York, on Leptospermum, 16 Sep 2018, J & F Hort (WAM). Paratypes ♂ (3) ♀ (4), Australia, WA, same data as holotype (WAM). Other specimens examined. Australia, WA, ♂ (8) ♀ (1), Wandering, 27 Sep 1951, IFB Common. ♂ (1) ♀ (1), 12 ml. NW. of Williams, 30 Sep 1952, Key & Wallace.♂ 3 ml. NNW. of Crossman, 30 Sep 1952, Key & Wallace.♂33.50S119.15E, Fitzgerald R.36km ENE Jerramungup, 22 Sep 1981, ID Naumann, JC Cardale. ♂ (1) ♀ (1), 32.45S116.34E, 2km NNW of Crossman, 24 Sep 1981, ID Naumann, JC Cardale. ♀ Near Yarelea [maybe miss spelling], 17 Sep 1936, Mackerras. ♀ Katanning, 11 Oct 1951, IFB Common. ♀ Newdegate, 19 Sep 1952, McIntosh, Calaby. ♂ (2), -32.0484 116.5689, York, open woodland, 15 Sep 2018, J & F Hort.♂ (3), -32.0822 116.5921, on Olearia rudis, 16 Sep 2018, J & F Hort. Diagnosis. Antennal flagellum wide. Posterior margin of scutum without black band. Posterior margin of scutellum and abdominal tergites 3–6 with pale yellow setae. Lateral margin of male gonocoxite slightly curved subapically; apex of epiphallus bifid, branch slender and acute apically. Description. Male. Body length 8.5–9.1 mm, wing length 9.6–9.9 mm. Head. Head about 2.0 x wider than long, mostly black with thick pale pruinescence and covered in white hairs and scales. Eye holoptic. Frons long, 3.3 x length of ocellar tubercle, upper narrow and black; lower half triangular, as long as upper half, with thick pale pruinescence, and white scales. Ocellar tubercle slightly raised, blackish brown to black with sparse pale pruinescence, with long black hairs. Face with thick pale pruinescence and covered in long white hairs. Gena with thick pale pruinescence and sparse white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick pale pruinescence and long white hairs. Posterior eye margin slightly concave. Antennal scape and pedicel brown with sparse pale pruinescence, scape with long white hairs, admixed with few long black hairs, pedicel with short black hairs; flagellum black without pruinescence, bare. Scape 3.0 x as long as wide, and 3.0 x as long as pedicel, uniform from base to apex. Pedicel 0.8 x as long as wide. Flagellum 8.0 x as long as wide, 2.0 x as long as scape + pedicel, 2.5 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus (Fig. 9c). Palpus not extending beyond oral cavity, brown with short brown hairs, one-segmented, without palpal pit. Mouthparts slender, 3.8 x as long as eye length, 2.1 x as long as head length, labellum large and fleshy (Fig. 9h). Thorax. Integumental colour of scutum mostly black with sparse grey pruinescence. Scutum covered with white to pale yellow hairs, admixed with few black hairs, hairs denser on anterior half; postalar callus with four pale yellow setae and admixed with dense black and white hairs. Four brownish yellow notopleural setae present. Scutellum black with sparse grey pruinescence, pruinescence denser on the margin, covered with long white hairs, admixed with some black hairs, posterior margin with pale yellow setae. Pleura black with thick pale pruinescence, mostly covered in long white hairs, except anterodorsal area of anepisternum with pale yellow setae, anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs blackish brown and mostly covered in black scales, except posterior half of femora covered in white scales and hairs, posterior face of fore and mid tibia admixed with white scales. Fore femur with one row of anterior bristles medially; mid femur with one row of anterior bristles; hind femur with one row of anteroventral bristles, and more separate bristles on apical half. Bristles and other hairs on legs brown. Fore tibia 2.2 x longer than fore basitarsus, mid tibia 2.4 x longer than mid basitarsus, hind tibia 2.5 x longer than hind basitarsus. Wings. Wing membrane hyaline. Cell r 5 closed; cell br shorter than cell bm, crossvein r-m arising from base of cell dm; crossvein m-m 0.8 x as long as crossvein r-m; cell cua open (Fig. 9d). Haltere stem black, knob blackish brown. Abdomen. Integumental colour of tergites black mostly with thick pale pruinescence. Tergite 1 with dense pale yellow hairs; tergite 2 with pale yellow hairs on anterior half, and dense black hairs on posterior half; tergites 3–4 with dense white hairs; tergites 5–7 with dense black hairs, except hairs sparse medially; posterior margin of tergites 3–6 with pale yellow setae, posterior margin of tergites 2 and 7 with black setae; tergite 8 with dense white hairs. Sternites black with thick pale pruinescence, sternites covered in white scales, and with pale yellow setae on posterior margin. Genitalia. Epandrium anterior margin strongly concave, posterior margin strongly concave (Fig. 10d). Lateral margin of gonocoxite slightly curved subapically (Figs 10 a–b); apex of epiphallus bifid, branch slender and acute apically (Fig. 10c). Female. Body length 8.3–9.2 mm, wing length 8.8–9.5 mm. Very similar to male, except frons black with thick pale pruinescence, 2.9 x as wide as ocellar tubercle, frons with short white scales admixed with brownish yellow setae (Fig. 9k). Eight acanthophorite spines present on each side of tergite 9+10 (Fig. 10g). Remarks. Meomyia hortorum sp. nov. is similar to Meomyia kochae sp. nov., but differs as follows: antennal flagellum wide; posterior margin of scutellum and abdominal tergites 3–6 with pale yellow setae; lateral margin of male gonocoxite slightly curved subapically. Distribution. Australia (WA). Etymology. This species is named in honor of Fred and Jean Hort for their important contributions to photographing and collecting Diptera specimens from Western Australia., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on pages 216-219, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074

8. Meomyia sericans (Macquart, 1850) (Figs 18–20, 27 ab) Bombylius sericans Macquart, 1850: 420 (116). Type-locality: " Nouvelle-Hollande, côte orientale" [= eastern Australia]; 1 Syntype, MNHN; 1 Syntype, NHMUK. Systoechus pausarius Jaennicke, 1867: 348 [1868: 40]. Type-locality: " Australia "; Holotype, SMFD. Type specimens. ♀ Syntype of Bombylius sericans Macquart, 1850 (NHMUK 010921902). ♀ Syntype of Bombylius sericans Macquart, 1850 (MNHN ED9259). Other specimens examined. Australia, Vic., ♂ (18), 36°29'58"S141°59'54"E, Little Desert National Park, Eastern Block, Pomponderoo Hill, 5.7km, SW of Dimboola, 21 Nov 2002, net, C Lambkin, D Yeates, N Starick, J Recsei. ♂36°30'57"S141°58'52"E, Little Desert National Park, Eastern Block, One Tree Hill, handnet, 21 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♂36°29'14"S141°46'59"E, Trig Point Walk, Little Desert Na- tional Park, 20km SE Nhill, handnet, 21 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♀ (5), 36°29'32"S141°01'10"E, Little Desert National Park, Western Block, Mount Moffat Track, 60km WSW Nhill, 19-22 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♀ (2), 36°31'39"S141°55'01"E, Little Desert National Park, Eastern Block, McCabes Hut Track, 12.6km SW Dimboola, 16-22 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♂ (1) ♀ (1), 36°29'30"S141°01'09"E, Little Desert National Park, Western Block, Mount Moffat Track, 60.7km WSW Nhill, 15-19 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♀34°50'30"S141°01'40"E, Mur- ray Sunset Natl Park, Milewa South Bore Track, 31.1km S Shearers Quarters, malaise, 14-23 Nov 2002, C Lambkin, D Yeates, N Starick, J Recsei. ♂36°29'58"S141°59'54"E, Little Desert National Park, Eastern Block, Pompon- deroo Hill, 5.7km, SW of Dimboola, 20 Nov 2002, net, C Lambkin, D Yeates, N Starick, J Recsei. ♀35°31'03"S141°18'56"E, Big Desert, Big Billy, 7-19 Nov 1997, M Neave, M Powell. ♂ (1) ♀ (1), Lake Hattah, 3 Sep 1966, G Anderson.♂Lake Powell, WJ Groeu, 7 Sep 1967. WA, ♂ (4) ♀ (1), 33°14'42"S119°44'9"E, 20k SbE Lake King Pallarup NR, 25 Oct 2016, D Yeates, X Li, J Lumbers A Landford. ♂30°00'52"S115°52'31"E, Pinjarrega NR, Coorow-Green Head Rd, 20 Oct 2016, D Yeates, X Li, J Lumbers A Landford. ♀29°50'9"S116°56'45"E, 47k NE Wubin, Jibberding, White Wells RA, 18 Oct 2016, D Yeates, X Li, J Lumbers A Landford. ♂Wurarga, 3 Sep 1984, K & E Carnaby.♂Eradu, 8 Sep 1926, EW Ferguson.♂Kojarena, 6 Sep 1926, EW Ferguson.♀ (2), Sand plains, Dumbleyung, Sep 1938, EH Kipps.♀ 2 ml. W. of Boondi, 22 Sep 1952, McIntosh & Calaby.♂Buniche.♀ Hoff- man Mill. Diagnosis. Upper clypeal margin with some black hairs. Posterior margin of scutum with a black band. Wing membrane with some unconspicuous markings. Anterior margin of male epandrium strongly concave. Epiphallus of male gonocoxite short, not modified. Redescription. Male. Body length 7.7–12.0 mm, wing length 8.0– 12.4 mm. Head. Head about 1.7 x wider than long, mostly black with thick pale pruinescence and covered in white hairs and scales, and admixed with some black hairs. Eye holoptic. Frons long, 3.7 x length of ocellar tubercle, upper narrow and black, with long black hairs; lower half triangular, 0.7 x length of upper half, with thick pale pruinescence, and white scales admixed with some black hairs. Ocellar tubercle slightly raised, blackish brown to black with sparse pale pruinescence, with long black hairs. Face with thick pale pruinescence and mostly covered in long white hairs, except upper clypeal margin and dorsolateral area admixed with some black hairs. Gena with thick pale pruinescence and sparse white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick pale pruinescence and long white hairs, admixed with brownish yellow setae and black hairs. Posterior eye margin slightly concave. Antennal scape and pedicel brown with sparse pale pruinescence, scape with long black hairs, ventral half admixed with some white hairs, pedicel with short black hairs, ventral face admixed with short white hairs; flagellum black without pruinescence, bare. Scape 2.8 x as long as wide, and 3.2 x as long as pedicel, uniform from base to apex. Pedicel 0.9 x as long as wide. Flagellum 10.0 x as long as wide, 2.1 x as long as scape + pedicel, 2.8 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus (Fig. 19c). Palpus not extending beyond oral cavity, black with short black hairs, one-segmented, without palpal pit. Mouthparts slender, 4.8 x as long as eye length, 2.9 x as long as head length, labellum large and fleshy (Fig. 19h). Thorax. Integumental colour of scutum mostly black with sparse grey pruinescence. Scutum covered with white to black hairs, anterior half covered in dense white hairs, admixed with few black hairs; posterior half with pale yellow hairs admixed with some black hairs; posterior margin with a black band, consisting of black hairs; postalar callus with eight brownish yellow setae and admixed with dense black hairs. Ten brownish yellow notopleural setae present. Scutellum black with sparse pale pruinescence, pruinescence denser on the margin, covered with long white hairs, posterior margin with brownish yellow setae. Pleura black with thick pale pruinescence, mostly covered in long white hairs, except postpronotal lobe, proepisternum, proepimeron and anterodorsal area of anepisternum with yellow setae, anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs mostly dark yellow and covered in black scales, except posterior face of femora and tibia covered in white scales, ventral half of femora with long white and black hairs. Fore femur with one row of anterior bristles medially; mid femur with one row of anterior bristles; hind femur with one row of anteroventral bristles, and more separate bristles on apical half. Bristles and other hairs on legs brown. Fore tibia 2.0 x longer than fore basitarsus, mid tibia 2.4 x longer than mid basitarsus, hind tibia 2.3 x longer than hind basitarsus. Wings. Wing membrane slightly infuscated, darker towards wing base, with some unconspicuous markings on base of R 4 , apex of cell dm, base of crossvein m-cu, and apex of cell bm. Cell r 5 closed; cell br shorter than cell bm, crossvein r-m arising from base of cell dm; crossvein m-m 0.9 x as long as crossvein r-m; cell cua open (Fig. 19d). Haltere stem blackish brown, knob brown. Abdomen. Integumental colour of tergites black mostly with thick pale pruinescence. Tergite 1 with dense white hairs; tergite 2 with white hairs on anterior half, and dense black hairs on posterior half; tergites 3–4 with dense white hairs; tergites 5–7 with dense black hairs, except median with short white scales; tergite 8 with dense white hairs; posterior margin of tergites 1–6 with brownish yellow setae. Sternites black with thick pale pruinescence, sternites covered in white scales, and with brownish yellow setae on posterior margin. Genitalia. Epandrium anterior and posterior margins strongly concave (Fig. 20d). Lateral margin of gonocoxite nearly straight (Figs 20 a–b); apex of epiphallus not bifid, short (Fig. 20c). Female. Body length 6.3–10.9 mm, wing length 6.6–11.3 mm. Very similar to male, except frons black with thick pale pruinescence, 3.9 x as wide as ocellar tubercle, frons with short white scales admixed with black setae (Fig. 19k). Seven acanthophorite spines present on each side of tergite 9+10 (Fig. 20g). Remarks. Roberts (1928: 417) considered Bombylius penicillatus as a synonym of Bombylius albiceps, which was not followed by the catalog (Evenhuis & Greathead, 1999). We examined the type specimen in MNHN and confirm it is a valid species. It matches the diagnostic characters with a series of specimens later collected from NSW. This species is redescribed and illustrated based on the specimens in ANIC. Meomyia sericans can be easily distinguished from Meomyia albiceps by male fore tibiae without outer brush on apical half. Distribution. Australia (Vic., WA)., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on pages 229-233, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074, {"references":["Macquart, P. J. M. (1850) Dipteres exotiques nouveaux ou peu connus. 4 me supplement. Memoires de la Societe (Royale) des Science, de l'Agriculture et des Arts a Lille, 1849, 309 - 479.","Jaennicke, F. (1867) Neue exotische Dipteren. Abhandlungen herausgeben von der Senckenbergischen Naturforschenden Gesellschaft, 6, 311 - 407.","Roberts, F. H. S. (1928) A revision of the Australian Bombyliidae (Diptera). Part II. The Proceedings of the Linnean Society of New South Wales, 53, 413 - 455.","Evenhuis, N. L. & Greathead, D. J. (1999) World Catalog of Bee Flies (Diptera Bombyliidae). Backhuys Publishers, Leiden, 756 pp."]}

6. Meomyia melanocincta sp. nov. (Figs 13, 14) urn:lsid:zoobank.org:act: AF03F544-462A-44E5-AB9A-2EF590049544 Type specimens. Holotype ♂Australia, NSW, 32°02'S148°52'E, Goonoo State Forest, 33km NE of Dubbo, hand net, 22 Oct 2005, C Lambkin, N Starick (ANIC). Paratypes ♂ (1) ♀ (2), Australia, NSW, 32°02'S148°52'E, Goonoo State Forest, 33km NE of Dubbo, hand net, 22 Oct 2005, C Lambkin, N Starick (ANIC). Diagnosis. Posterior margin of scutum without black band. Posterior margin of abdominal tergite 3 with a narrow black band. Fore tibia with subapical white scale band. Apex of epiphallus of male gonocoxite bifid, branch slender and acute apically. Description. Male. Body length 10.0 mm, wing length 9.7 mm. Head. Head about 1.9 x wider than long, mostly black with thick pale pruinescence and covered in white hairs and scales. Eye holoptic. Frons long, 4.0 x length of ocellar tubercle, upper narrow and black; lower half triangular, 0.5 x as long as upper half, with thick pale pruinescence, and white scales. Ocellar tubercle slightly raised, blackish brown to black with sparse pale pruinescence, with long black hairs admixed with short white scales. Face with thick pale pruinescence and covered in long white hairs. Gena with thick pale pruinescence and sparse white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick pale pruinescence and long white hairs. Posterior eye margin slightly concave.Antennal scape and pedicel brown with sparse pale pruinescence, scape with long black hairs on dorsal half and long white hairs on ventral half, pedicel with short black hairs; flagellum black without pruinescence, bare. Scape 2.5 x as long as wide, and 2.7 x as long as pedicel, uniform from base to apex. Pedicel 0.9 x as long as wide. Flagellum 8.0 x as long as wide, 2.4 x as long as scape + pedicel, 3.2 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus (Fig. 13c). Palpus not extending beyond oral cavity, black with black and white hairs, one-segmented, without palpal pit. Mouthparts slender, 3.9 x as long as eye length, 2.7 x as long as head length, labellum large and fleshy (Fig. 13h). Thorax. Integumental colour of scutum mostly black with sparse grey pruinescence. Scutum covered with white to pale yellow hairs, admixed with few black hairs, hairs denser on anterior half; posterior area with some black setae; postalar callus with six brownish yellow and black setae and admixed with dense black to white hairs. Eight pale yellow notopleural setae present. Scutellum black with sparse grey pruinescence, pruinescence denser on the margin, covered with long pale yellow hairs, admixed with some black hairs, posterior margin with black setae, admixed with few brownish yellow setae. Pleura black with thick pale pruinescence, mostly covered in long white hairs, except anterodorsal area of anepisternum with pale yellow setae, anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs mostly blackish brown, except femora black; mostly covered in white scales, except anterior face of fore and mid femora covered in black scales, hind tibia and anterior face of mid tibia admixed with black scales, anterior face of fore tibia mostly covered with black scales and with a subapical white scale band. Fore femur with one anterior bristle medially; mid femur with one row of anterior bristles; hind femur with one row of anteroventral bristles, and more separate bristles on apical half. Bristles and other hairs on legs brown. Fore tibia 2.3 x longer than fore basitarsus, mid tibia 2.7 x longer than mid basitarsus, hind tibia 2.4 x longer than hind basitarsus. Wings. Wing membrane hyaline. Cell r 5 closed; cell br shorter than cell bm, crossvein r-m arising from base of cell dm; crossvein m-m 0.9 x as long as crossvein r-m; cell cua open (Fig. 13d). Haltere stem and knob blackish brown. Abdomen. Integumental colour of tergites black mostly with thick pale pruinescence. Tergite 1 with dense pale yellow hairs; tergite 2 with pale yellow hairs, except posterior half with black scales and hairs; tergite 3 with pale yellow hairs, except posterior marign with black scales and hairs; tergite 4 with pale yellow hairs; tergites 5–7 with dense black hairs, except sparse pale yellow hairs medially; posterior margin of tergites 2–4 with black setae, posterior margin of tergites 5–7 with pale yellow setae admixed with black setae; tergite 8 with dense white hairs. Sternites black with thick pale pruinescence, sternites covered in white scales, and with pale yellow setae on posterior margin. Genitalia. Epandrium anterior margin strongly concave, posterior margin nearly straight (Fig. 14d). Lateral margin of gonocoxite nearly straight (Figs 14 a–b); apex of epiphallus bifid, branch slender and acute apically (Fig. 14c). Female. Body length 10.0– 10.6 mm, wing length 9.3–10.2 mm. Very similar to male, except frons black with thick pale pruinescence, 2.3 x as wide as ocellar tubercle, frons with short white scales admixed with pale yellow setae (Fig. 13l). Occiput admixed with yellow setae. Anterior face of fore tibiae without subapical white band. Eight acanthophorite spines present on each side of tergite 9+10 (Fig. 14g). Remarks. Meomyia melanocincta sp. nov. is similar to Meomyia hortorum sp. nov., but differs from the latter by having a narrow black band on posterior margin of abdominal tergite 3, and a subapical white scale band on fore tibia. Distribution. Australia (NSW). Etymology. This specific name refers to the narrow black band on posterior margin of abdominal tergite 3., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on pages 222-225, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074

Key to species of Meomyia Evenhuis 1. Body with yellowish and black hairs; wing membrane with distinct spots (Fig. 7d)....................................................................................................... Meomyia fasciculata (Macquart, 1840) - Body with white and black hairs; wing membrane without distinct spots (Figs 2d, 4d, 9d, 11d, 13d, 16d, 19d, 22d)........ 2 2. Male fore tibia with hair tuft, with or without enlarged setae (Figs 2e, 4e, 22e)..................................... 3 - Male fore tibia without hair tuft or enlarged setae............................................................ 5 3. Apical outer hair tuft on male fore tibia with only black hairs (Fig. 2e)............... Meomyia albiceps (Macquart, 1848) - Apical outer hair tuft on male fore tibia mostly black, but with a subapical white scale band (Figs 4e, 22e)............... 4 4. Male mid tibia without enlarged setae (Fig. 22f).................................... Meomyia vetusta (Walker, 1849) - Male mid tibia with enlarged black setae on inner and outer face (Fig. 4f)........ Meomyia callynthrophora (Schiner, 1868) 5. Posterior margin of scutum with a black band, consisting of black hairs (Figs 19 a–i); upper clypeal margin and dorsolateral area of face admixed with some black hairs (Figs 19 g–h); wing membrane slightly infuscated, darker towards wing base, with some unconspicuous markings on base of R 4 , apex of cell dm, base of crossvein m-cu, and apex of cell bm (Fig. 19d); male epiphallus short, not modified (Fig. 20c)................................................ Meomyia sericans (Macquart, 1850) - Posterior margin of scutum with or without black band, covered with yellowish hairs; face covered in white hairs, upper clypeal margin and dorsolateral area without black hairs; wing membrane hyaline, without markings (Figs 9d, 11d, 13d, 16d); male epiphallus bifid apically, branch slender and long (Figs 10c, 12c, 14c, 17c)........................................ 6 6. Posterior margin of abdominal tergite 3 with a narrow black band, consisting of scales, hairs and setae (Fig. 13b); posterior area of scutum with some black setae; fore tibia with subapical white scale band (Fig. 13e)....... Meomyia melanocincta sp. nov. - Posterior margin of abdominal tergite 3 without black band, tergite 3 covered in white or pale yellow hairs; posterior area of scutum without setae; fore tibia covered in black or brown scales, without subapical white scale band.................. 7 7. Antennal flagellum wide (Fig. 9c); posterior margin of scutellum with pale yellow setae; posterior margin of tergites 3–6 with pale yellow setae; antennal scape with long white hairs, admixed with a few long black hairs........................................................................................................ Meomyia hortorum sp. nov. - Antennal flagellum narrow (Figs 11c, 16c); posterior margin of scutellum with brownish yellow or black setae; posterior margin of tergites 3–6 with black setae; antennal scape with long black hairs on dorsal half, and long white hairs on ventral half 8 8. Legs mostly brown, except basal half of femora turning black; posterior margin of scutellum with black setae; lateral margin of male gonocoxite strongly curved subapically (Figs 17 a–b); male epiphallus with rounded dorsal branch (Fig. 17c).............................................................................. Meomyia penicillata (Macquart, 1850) - Legs mostly yellow, except tarsi dark brown; posterior margin of scutellum with brownish yellow setae; lateral margin of male gonocoxite nearly straight (Figs 12 a–b); male epiphallus with acute dorsal branch (Fig. 12c)....... Meomyia kochae sp. nov., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on page 203, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074, {"references":["Macquart, P. J. M. (1840) Tome Deuxieme. - 1 re Partie. In: Dipteres exotiques nouveaux ou peu connus. N. E. Roret, Paris, pp. 5 - 135.","Macquart, P. J. M. (1848) Dipteres exotiques nouveaux ou peu connus. Suite du 2 me supplement. Memoires de la Societe (Royale) des Science, de l'Agriculture et des Arts a Lille, 1847 (2), 161 - 237.","Walker, F. (1849) Parts II-IV. In: List of the specimens of dipterous insects in the collection of the British Museum. British Museum, London, pp. 231 - 1172.","Schiner, I. R. (1868) Diptera. In: Reise der osterreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859, unter den Befehlen des Commodore B. von Wullerstof-Urbair. Zoologischer Theil. Zweiter Band. 1. Abtheilung. B. K. Gerold's Sohn, Wien (Vienna), pp. i-vi + 1 - 388. https: // doi. org / 10.5962 / bhl. title. 7913","Macquart, P. J. M. (1850) Dipteres exotiques nouveaux ou peu connus. 4 me supplement. Memoires de la Societe (Royale) des Science, de l'Agriculture et des Arts a Lille, 1849, 309 - 479."]}

9. Meomyia vetusta (Macquart, 1849) (Figs 21–23) Bombylius vetustus Walker, 1849: 286. Type-locality: " New Holland " [= Australia]; 1 Syntype, NHMUK. Type specimens. ♂ Syntype of Bombylius vetustus Walker, 1849 (NHMUK 010921904). Other specimens examined. Australia, ACT, ♂ (2), Jervis Bay, 1 Oct 1952, SJ Paramonov. ♀ Jervis Bay, 7 Nov 1956, EF Riek. ♀ Cotter R[iver]. 20 Nov 1934, W Rafferty. NSW, ♂ (3) ♀ (9), 33°31'6"S151°24'40"E, 18 Sep 2017, X Li, Z Liu, M Jin. ♀35°6'49"S150°21'45"E, Tianjara, 24 Oct 2017, D Ferguson, X Li. ♂ (4) ♀ (2), 32°34'42"S145°25'01"E, Yathong Nature Res., Mallee fowl conservation area; hand net off white flowers, C Lambkin, N Starick; 161m, 4 Oct 2003. ♂35°06'52.70"S150°21'52.30"E, Tianjara Falls area, 460m, netted, 5 Nov 2014, DJ Ferguson, DK Yeates. ♀35°07'02.60"S150°19'18.00"E, Tianjara Falls area, 460m, netted, 5 Nov 2014, DJ Ferguson, DK Yeates. ♀35°50'58.21"S150°09'59.05"E, Broulee, swept from grassland area adj to houses and woodland, 20m, 9 Oct 2014, DJ Ferguson. ♀ 9 mls. NW of Kingstown, nr. Armidale, 14 Dec 1948, KHL & B Key. ♂ (2), Murramarang, N. Durras NP, 22 Oct 1989, MG Jefferies. ♀ 5 mls. N E. Nerriga, 29 Nov 1962, IFB Common & MS Upton. ♂ 'Lugen Pk.' Nullo Mt., N.E. of Rylstone, 22 Oct 1953, TG Campbell. ♂ (1) ♀ (1), Broulee, 24 Oct 1934, Fuller. ♀ (3), 4 N Eden, 4 Dec 1956, EF Riek. ♂ (5), Ulladulla, FH Taylor. ♂ N.E. Nat. Pk., near entrance, 19 Nov 1960, CW Frazier. ♀ (2), State Forest Gibraltar Range, 15 Dec 1969, CW Frazier. ♂4 m. N. of Bateman's Bay, 14 Oct 1952, SJ Paramonov. ♂ Nullo Mtn 20 mls, NE Rylstone, 12 Nov 1950, TG Campbell. ♀ Pilliga Scrub, 9 km N of Coonabarabran, 5 Oct 1976, EM Exley, T Low, on Leptospermum flavescens (QM). ♀ Heath n[ea]r Broadwa- ter, 25 Sep 1950 (QM). ♀ (2), Warialda, 20 Oct 1928, GR Bass (QM). Qld., ♀ Woodford, 13 Oct 1950 (QM). ♀ Sydney, Deane (QM). ♂ (2), Bancroft, Eidsvold, 26 Aug 1923. ♂ Brisbane, 12 Sep 1937, CF Ashby. ♂ Brisbane, 18 Sep 1965, CF Ashby. ♂ (1) ♀ (1), The Blunder, 25 Sep 1966, CF Ashby. ♀ The Blunder, 18 Sep 1966, CF Ashby. ♀ The Blunder, 6 Sep 1966, CF Ashby. ♀ The Blunder, 2 Oct 1966, CF Ashby. ♂ Brisbane, AP Dodd. ♂ Brisbane, FH Roberts, 2 Sep 1927. ♀ Eidsvold, Oct 1937, AP Dodd. ♂ (1) ♀ (1), Sunnybank, 19 Sep 1948. ♂ (1) ♀ (1), 28°39'S151°57'E, Mt. Marlay summit, Stanthorpe, hand net, 22 Oct 2005, DK Yeates. ♂ Brisbane, 3 Sep 1912, J Mann (QM). ♂ Stanthorpe, 1 Nov 1927 (QM). ♂ Brisbane, 10 Sep 1927 (QM). ♀ Sunnybank, 8 Sep 1928, FA Per- kins (QM). ♂ (1) ♀ (1), 24.8342°S147.7675°E, Carnarvon St[atio]n, Swers Lookout (CN5), 900m, 23 Sep 2012, Lambkin, Wright, Starick, handnetting (QM). ♂24.9692°S148.0071°E, Carnarvon N[ational] P[ark], Mt Moffatt sect[ion], n[ea]r West Branch Camp (MM8), 790m, 24 Sep 2012, Starick, Wright, Lambkin, Eucalyptus / Acacia woodland (QM). ♀24.9692°S148.0071°E, Carnarvon NP, Mt Moffatt sect[ion], n[ea]r West Branch Camp (MM8), 790m, 19 Sep 2012, QM Party, day hand net, Eucalyptus / Acacia woodland (QM). ♂ (2) ♀ (6), 24.8472°S147.6980°E, Carnarvon St[atio]n, Mailman Spring, 760m, 16 Oct 2014, Wright, Lambkin, Starick, net, Eucalypt woodland (QM). ♀ (2), 24.834°S147.768°E, Carnarvon St[atio]n, SWER line (CN17), 866m, 9 Oct 2014, S Wright, hand net, Euc/ Acacia woodl[an]d (QM). ♀24.847°S147.698°E, Carnarvon St[atio]n, Mailman Spring, 760m, 13 Oct 2014, R Leijs, hand net, Eucalyptus woodland (QM). ♂ (4) ♀ (3), 24.834°S147.768°E, Carnarvon St[atio]n, SWER line (CN17), 887m, 9 Oct 2014, BHP, Earthwatch, hand net, Euc/ Acacia woodl[an]d (QM). ♀24.8878°S147.4456°E, Carnarvon St[atio]n, Ka Ka Mundi R[oa]d, 693m, 10 Oct 2014, C Lambkin, Flowering Budgeroo, net, burnt 2014 (QM). ♀ (5), 24.8531°S147.6991°E, Carnarvon St[atio]n, n[ea]r Mailman Spring, 775m, 13 Oct 2014, Lambkin, Wright, Starick, net, Leptospermum (QM). ♀12.374°S142.195°E, C[ape] York, Irwin Res[erve], Creek off Wen- lock R[iver], 9m, 21 & 26 July 2018, N Starick, C Lambkin, B Lessard, hand net, gallery forest, waterholes (QM). ♀12.385°S142.177°E, Cape York, Irwin Res[erve], Wenlock R[iver], Pump Track n[ea]r Stone [Cross]ing, 16m, 26 Jul 2018, N Starick, C Lambkin, B Lessard, hand net, gallery forest (QM). ♂ (2) ♀ (1), 27°38.6'S153°03.8'E, Drewvale, Illaweena St[reet], 40m, 09 Sep 2003, QM party, day hand coll[ected], scribbly gum/heath (QM). ♂ (4) ♀ (4), 27°38.6'S153°03.8'E, Drewvale, Illaweena St, 40m, 18 Sep 2003, QM party, day hand coll[ected], scribbly gum/heath (QM). ♀14°40'S143°50'E, Lakefield Nat[ional] P[ar]k, Sweetwater Lake, 10-20m, 27 Jul 2004, S Wright, Casuarina woodland (QM). ♀ Brisbane, 02 Dec 1913, H Hacker (QM). ♂ (2), Brisbane, 18 Sep 1914, H Hacker (QM). ♂ Brisbane, 24 Sep 1914, H Hacker (QM). ♂ Brisbane, 26 Sep 1916, H Hacker (QM). ♀ (2), Bris- bane, 16 Sep 1918, H Hacker (QM). ♀ Brisbane 13 Sep 1921, H Hacker (QM). ♂ (2), - 28.6350S151.9E, Stan- thorpe, Broadwater S[tate] F[orest], 29 Sep 2009, MG Jefferies (QM). ♀ - 28.654S151.947E, Stanthorpe, Mt Mar- lay, 17 Oct 2010, MG Jefferies (QM). ♂ - 28.5359S151.83E, Passchendale, TV Tower, 18 Oct 2010, MG Jefferies (QM). ♀ - 28.6537S151.94E, Stanthorpe, Mt Marlay, 24 Oct 2009, MG Jefferies (QM). ♂ - 28.5359S151.83E, Passchendale, TV Tower, 10 Nov 2009, MG Jefferies (QM). ♂ (1) ♀ (1), - 28.6537S151.9470E, Stanthorpe, Mt Marlay, 211 Nov 2008, MG Jefferies (QM). ♀ - 28.5359S151.83E, Passchendale, TV Tower, 14 Dec 2009, MG Jef- feries (QM). ♀ (2), - 28.845S151.94E, Girraween N[ational] P[ark], Castle Rock, 18 Dec 2009, MG Jefferies (QM). ♀ - 28.828S151.978E, Girraween N[ational] P[ark], North Slopes, 13 Jan 2010, MG Jefferies (QM). ♂ (2) ♀ (2), Mt Marlay, n[ea]r Stanthorpe, 6-9 Nov 1984, DK Yeates (QM). ♀ Mt Marlay, n[ea]r Stanthorpe, 10 Dec 1984, DK Yeates (QM). ♂ Mt Marlay, n[ea]r Stanthorpe, 24-25 Nov 1984, DK Yeates (QM). ♀ Mt Marlay, n[ea]r Stanthorpe, 30 Oct 1985, DK Yeates (QM). ♂ (2), Mt Marlay, n[ea]r Stanthorpe, 31 Oct 1985, DK Yeates (QM). ♀ (4), Calliope Range, Kroombit Tops, 45km SSW Calliope, 9/ 19 Dec 1983, G Monteith, G Thompson, open forest (QM). ♀ Kroombit Tops, Upper Kroombit C[ree]k, 45km SSW Calliope, 9/ 19 Dec 1983, G Monteith, G Thompson, open forest (QM). ♀ (2), Kroombit Tops, Three Moon C[ree]k, 45km SSW Calliope, 12-19 Dec 1983, G Monteith, G Thompson (QM). ♀ Bald Rock N[ational] P[ark], 25km SE Stanthorpe, 1 Dec 1983, D Yeates (QM). ♀ Bald Rock N[ational] P[ark], 10 Dec 1986, DK Yeates (QM). ♀ (2), Davies C[ree]k S[tate] F[orest] via Mareeba, 900m, 26 Nov 1985, DK Yeates, rainforest (QM). ♀ Gibralter Range Nat[ional] Park, 15 Dec 1984, DK Yeates (QM). ♀ Gi- bralter Ra[nge] State Forest, 16 Dec 1984, DK Yeates (QM). ♂ Carnarvon Nat[ional] P[ar]k, Mt Moffatt sect[ion], Marlong Arch, 22 Sep 1986, DK Yeates (QM). ♂ Carnarvon Nat[ional] P[ar]k, Mt Moffatt sect[ion], Marlong Plain, 25 Sep 1986, DK Yeates (QM). ♂ (2), Carnarvon Sat[ional] P[ar]k, Mt Moffatt sect[ion], Kookaburra Cave area 22 Sep 1986, DK Yeates (QM). ♀ Girraween Nat[ional] Park, 27 Nov 1981, MA Schneider, G Daniels (QM). ♀ Gir- raween Nat[ional] Park, 1-2 Dec 1981, G Daniels, MA Schneider (QM). ♂ Carnarvon Nat[ional] P[ar]k, Mt Moffatt sect[ion], Kenniff Cave area, 23 Sep 1986, DK Yeates (QM). ♂15km SW Ebor, 12 Dec 1984, DK Yeates, on Leptospermum myrtifolium blossom (QM). ♀ Mt Lindesay H[ighway], Washpool Creek [Cross]ing, n[ea]r Tenterfield, 28 Nov 1981, MA Schneider, G Daniels (QM). ♂ Carnarvon N[ational] P[ark], Mt Moffatt sect[ion], Cathedral Rock, 21 Sep 1986, DK Yeates (QM). ♀ Mt Moffatt N[ational] P[ark], Top Shelter Shed, 12 Dec 1987, DK Yeates (QM). ♀ Stanthorpe, 5 Jan 1963, A McQueen (QM). ♀ Fraser Island, Central Forestry St[atio]n, 22-30 Nov 1977, K Walker (QM). ♀ Mt Bauple via Maryborough, 13 Dec 1965, G Monteith (QM). ♀26°25'S146°33'E, 22km W Morven, 10 Sept 1989, E Exley, G Daniels, C Burwell, on Acacia ixodes (QM). ♀ Mt Kuring-Gai, 27 Sep 1950, B McMillan (QM). ♂ Brisbane, 9 Aug 1948, BC Dodd (QM). ♂ Brisbane, 1 Jun 1925, Frangen (QM). ♀ Stanthorpe, 3 Oct 1924 (QM). ♀Isla Gorge via Theodore, 9-10 Sep 1972, GB Monteith (QM). ♀ Macknade, 1 Jan 1951, B Champ (QM). ♀ Goondiwindi, 4 Dec 1928, GR Bass (QM). ♂ Sunnybank, 26 Sep 1936, F Chippendale (QM). ♀ Gatton, 4 Feb 1937, GL Wilson (QM). ♂ (2), Brisbane, 10 Sep 1927 (QM). ♀ Brisbane, 15 Apr 1935, FA Perkins (QM). ♂ Sunnybank, 10 Sep 1936 (QM). ♂ Bribie Is[lan]d, 2 Jan 1917, H Hacker (QM). ♀ Bribie Is[lan]d, 12 Sep 1918 (QM). ♂ Brisbane, 3 Sep 1927, J Mann (QM). ♂ Brisbane, 10 Sep 1927, J Mann (QM). ♂ Brisbane, 17 Sep 1927, J Mann (QM). ♂ (2), Brisbane, 9 Oct 1927, J Mann (QM). ♂ Brisbane, 18 Sep 1911, H Hacker (QM). ♀ Caloundra, 28 Oct 1913, H Hacker (QM). ♀ Stanthorpe, 25 Oct 1922 (QM). ♀ Stanthorpe, 14 Oct 1923 (QM). ♀ Stanthrope 19 Oct 1923 (QM). ♀ (2), Stanthorpe, 1 Oct 1924 (QM). ♀ Stanthorpe, 10 Oct 1924 (QM). ♀ (2), Stan- thorpe, Jan 1926, H Hacker (QM). ♂ (2), Stanthorpe, 1 Nov 1927 (QM). ♀ Stanthorpe, 4 Feb 1930 (QM). ♂ Dun- wich, 17 Sep 1955, PC Kerridge (QM). SA, ♂ (2), -34.6162° 135.3569°, Coffin Bay NP, Lake Jessie dunes, 1 Oct 2017, 100m SWbS Jessie Tk, JA & JG Lumbers. ♂ (2), 36.00 137.22, Kangaroo Is., Bales Bay, 26 Oct 1993, DK Yeates. Vic., ♂ Wyperfeld National Park, 5 Nov 1966, IFB Common & MS Upton. ♀ (2), Wyperfeld National Park, 4 Nov 1966, IFB Common & MS Upton. ♂ (3) ♀ (2), 33.315°S134.783°E, Talia, 9.5 km W[est], 20 Oct 2009, Lambkin, Starick, hand net, coastal heath (QM). ♂33.231°S134.661°E, Venus Bay Point, 21 Oct 2009, C Lambkin, N Starick, hand net, coastal heath (QM). Diagnosis. Posterior margin of scutum with a black hair band. Fore tibiae with enlarged outer black setae on apical half, and an apically hair tuft with a white scale band across on subapex; mid tibiae with a subapical white scale band. Apex of epiphallus of male gonocoxite bifid, with slender branch. Redescription. Male. Body length 6.1–12.4 mm, wing length 5.9–11.8 mm. Head. Head about 1.8 x wider than long, mostly black with thick pale pruinescence and covered in white hairs and scales, and admixed with brown hairs. Eye holoptic. Frons long, 4.3 x length of ocellar tubercle, upper narrow and black; lower half triangular, 1.1 x length of upper half, with thick pale pruinescence and white scales, admixed with few brown hairs. Ocellar tubercle slightly raised, blackish brown to black with sparse grey pruinescence, with brown hairs admixed with few white scales. Face with thick pale pruinescence and long white hairs. Gena with thick pale pruinescence and sparse white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick pale pruinescence and long white hairs. Posterior eye margin slightly concave. Antennal scape and pedicel brown with thick pale pruinescence, scape with long black hairs on dorsal half, and white hairs on ventral half, pedicel with short black hairs on dorsal half, and with short white hairs on ventral half; flagellum black without pruinescence, bare. Scape 2.8 x as long as wide, and 2.7 x as long as pedicel, uniform from base to apex. Pedicel 1.1 x as long as wide. Flagellum 9.2 x as long as wide, 2.2 x as long as scape + pedicel, 3.0 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus (Fig. 22c). Palpus not extending beyond oral cavity, black with short brown hairs, one-segmented, without palpal pit. Mouthparts slender, 3.7 x as long as eye length, 2.1 x as long as head length, labellum large and fleshy (Fig. 22j). Thorax. Integumental colour of scutum mostly black with sparse grey pruinescence. Scutum covered with white hairs admixed with some black hairs, hairs denser on anterior half, posterior half with more black hairs, postalar callus with five brownish yellow setae and with admixed white and black hairs. Five brownish yellow notopleural setae present. Scutellum black with thick grey pruinescence, pruinescence denser on the margin, covered with admixed white and black hairs, posterior margin with brownish yellow setae. Pleura black with thick pale pruinescence, mostly covered in long white hairs, except anterodorsal area of anepisternum with some pale yellow setae, anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs mostly yellow, except tarsi dark brown; femora mostly covered in white scales and hairs, except anterior face of fore and mid femora admixed with black scales; tibia mostly covered in black scales, except posterior face of fore and mid tibia with white scales. Fore femur with one anterior bristle on median area; mid femur with one row of anterior bristles; hind femur with one row of anteroventral bristles, and more separate bristles on apical half. Fore tibiae with enlarged outer black setae on apical half, and an outer black hair tuft apically with an oblique white scale band on subapex (Fig. 22e); mid tibiae with an oblique white scale band on subapex (Fig. 22f).Bristles and other hairs on legs brown. Fore tibia 2.0 x longer than fore basitarsus, mid tibia 2.4 x longer than mid basitarsus, hind tibia 2.3 x longer than hind basitarsus. Wings. Wing membrane hyaline. Cell r 5 closed; cell br shorter than cell bm, crossvein r-m arising from base of cell dm; crossvein m-m 0.6 x as long as crossvein r-m; cell cua open (Fig. 22d). Haltere stem and knob blackish brownish yellow. Abdomen. Integumental colour of tergites black mostly with thick grey pruinescence [hairs largely lost in examined specimens]. Tergite 1 with dense white hairs; tergite 2 with white hairs on anterior half and black hairs on posterior half; tergite 4 with white hairs; tergites 5–6 with dense black hairs; tergite 7 with dense white hairs. Sternites black except posterior brown, with thick pale pruinescence, and with white hairs. Genitalia. Epandrium anterior margin strongly concave, posterior margin nearly straight (Fig. 23d). Lateral margin of gonocoxite nearly straight (Figs 23 a–b); apex of epiphallus bifid, branch slender and acute apically (Fig. 23c). Female. Body length 7.3–13.6 mm, wing length 7.0– 13.1 mm. Very similar to male, except frons black with thick pale pruinescence, 4.3 x as wide as ocellar tubercle, frons with short white scales admixed with brownish yellow setae (Fig. 22m). Occiput covered in white hairs admixed with brownish yellow setae. Seven acanthophorite spines present on each side of tergite 9+10 (Fig. 23g). Remarks. Roberts (1928: 417) considered Bombylius vetustus as a synonym of Bombylius albiceps, which was not followed by the catalog (Evenhuis & Greathead, 1999). We examined the type specimens in NHMUK and confirm it is a valid species. Meomyia vetusta could be easily distinguished from Meomyia albiceps by a subapical white scale band cross the black hair tuft on apex of male fore tibiae. Distribution. Australia (ACT, NSW, Qld., SA, Vic.)., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on pages 233-238, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074, {"references":["Walker, F. (1849) Parts II-IV. In: List of the specimens of dipterous insects in the collection of the British Museum. British Museum, London, pp. 231 - 1172.","Roberts, F. H. S. (1928) A revision of the Australian Bombyliidae (Diptera). Part II. The Proceedings of the Linnean Society of New South Wales, 53, 413 - 455.","Evenhuis, N. L. & Greathead, D. J. (1999) World Catalog of Bee Flies (Diptera Bombyliidae). Backhuys Publishers, Leiden, 756 pp."]}

10. Dissodesma tetratricha (Walker, 1849)comb. nov. (Figs 24–26) Bombylius tetratrichus Walker, 1849: 291. Type locality: Australia (WA), Holotype, NHMUK. Type specimen. Holotype of Bombylius tetratrichus Walker, ♀ (NHMUK 010921903) (Fig. 24). Other specimens examined. Australia, WA, ♂ (1) ♀ (1), Waroona, 5 Mar 1909, GF Berthoud.♀ (2), Waroona, 10 Mar 1909, GF Berthoud.♀, Waroona, 11 Mar 1909, GF Berthoud.♀, Waroona, 16 Mar 1909, GF Berthoud.♀, Waroona, 15 Feb 1909, GF Berthoud.♂, Waroona, 20 Feb 1909, GF Berthoud.♀, Waroona, 25 Feb 1909, GF Berthoud.♂, Waroona, 13 Mar 1909, GF Berthoud (NHMUK 010921905). ♀, Waroona, 10 Mar 1909, GF Berthoud (NHMUK 010921906). Redescription. Male. Body length 8.6–12.2 mm, wing length 7.5–10.7 mm. Head. Head about 1.6 x wider than long, mostly blackish with thick white pruinescence and covered in admixed white to pale yellow scales and hairs. Eye holoptic. Frons long, 3.8 x length of ocellar tubercle, upper narrow and black; lower half triangular, 2.3 x length of upper half, with thick pale pruinescence and pale yellow hairs. Ocellar tubercle slightly raised, blackish brown to black with grey pruinescence, with short yellow hairs. Face with thick white pruinescence and long white scales and hairs. Gena with thick white pruinescence and long white hairs. Clypeus with thick pale pruinescence and otherwise bare. Occiput with thick white pruinescence and dense pale yellow scales, except more white scales on ventral half. Posterior eye margin slightly concave. Antennal scape and pedicel black, scape with thick pale pruinescence and long pale yellow hairs, pedicel with sparse pale pruinescence and short pale yellow hairs; flagellum black without pruinescence. Scape 3.1 x as long as wide, and 3.3 x as long as pedicel, uniform from base to apex. Pedicel 1.0 x as long as wide. Flagellum 10.2 x as long as wide, 1.8 x as long as scape + pedicel, 2.3 x as long as scape, conical and slightly laterally compressed, one-segmented with apical stylus. Palpus short, not extending beyond oral cavity, yellow with short yellow hairs, one-segmented, without palpal pit. Mouthparts slender, 4.0 x as long as eye length, 2.5 x as long as head length, labellum thin and filiform (Fig. 25h). Thorax. Integumental colour of scutum mostly black with thick grey pruinescence. Scutum covered with pale yellow hairs, pale yellow hairs darker apically. Three yellow notopleural setae present. Scutellum black with sparse pale pruinescence, covered with long yellow hairs, posterior margin admixed with some strong black hairs. Pleura black with thick pale pruinescence, mostly covered in long pale yellow hairs, except anepimeron, meron, laterotergite and mediotergite bare. Legs. Legs mostly blackish brown except fore and mid femora dark yellow apically, fore and mid tibiae yellow. Femora covered in pale yellow scales, ventral face with long pale yellow hairs. Hind femur with one row of anteroventral yellow bristles. Mid and fore tibiae covered in pale yellow scales, anterior face admixed with some brown scales on apical half. Other bristles and hairs on legs brownish yellow. Fore tibia 1.7 x longer than fore basitarsus, mid tibia 2.4 x longer than mid basitarsus, hind tibia 2.3 x longer than hind basitarsus. Wings. Wing membrane clear, slightly darker towards wing base and along costa. Cell r 5 narrowly open; cell br nearly as long as cell bm, crossvein r-m arising from base of cell dm; crossvein m-m nearly as long as crossvein r-m; cell cua open. Haltere stem dark yellow, knob yellow. Abdomen. Integumental colour of tergites black mostly with sparse grey pruinescence. Tergite 1 with dense yellow hairs; tergites 2 to 4, and 7 to 8 with yellow hairs, admixed few long black hairs laterally and on posterior margin; tergites 5 and 6 admixed with dense long black hairs laterally. Sternites black except posterior margin yellow, with thick pale pruinescence, covered with pale yellow scales and hairs. Genitalia. Epandrium wide and short, anterior margin nearly straight, posterior margin strongly concave (Fig. 26d). Hypandrium present. Gonocoxal apex with slightly narrower than the base in dorsal view, ejaculatory apodeme small (Figs 26 a–b); gonocoxal apodeme strong and incurved; lateral ejaculatory process strong; inner apex of gonocoxite acute, slender and elongate; outer apex of gonocoxite acute, normal length; dorsal bridge without lateral hollow; gonostylus normal; phallus straight, slightly shorter than gonocoxite (Fig. 26c). Female. Body length 8.0– 14.1 mm, wing length 7.7–13.5 mm. Very similar to male, except frons black with thick pale pruinescence, 3.0 x as wide as ocellar tubercle, frons with short white to pale yellow scales on lower half, long pale yellow hairs on upper half, admixed with some long black hairs (Fig. 25f). Tergite 8 with thick hairs, eight acanthophorite spines present on each side of tergite 9+10, slightly curved apically. Genital fork slender and straight, connect at apex. Sperm pump strong and long, with some lateral papillae; distal spermathecal duct of normal length, thickened in apical half; spermatheca small and nearly spherical, apex rounded (Fig. 26g). Remarks. Bombylius tetratrichus was placed in the genus Sisyromyia White by Roberts (1928), and was later moved to Meomyia by Evenhuis & Greathead (1999). We examined the holotype from NHMUK, and there are several specimens in a very good condition. However, all the specimens of Bombylius tetratrichus in ANIC were in poor condition. We were able to identify these specimens and dissect the genitalia of both male and female. Based on the external and genitalia characters of both male and female, this species belongs to the genus Dissodesma Bowden & Li (Li & Yeates, 2018). Therefore, Dissodesma tetratricha is a new combination proposed in the present study. Distribution. Australia (WA)., Published as part of Li, Xuankun & Yeates, David K., 2020, Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini), pp. 201-243 in Zootaxa 4810 (2) on pages 238-242, DOI: 10.11646/zootaxa.4810.2.1, http://zenodo.org/record/3938074, {"references":["Walker, F. (1849) Parts II-IV. In: List of the specimens of dipterous insects in the collection of the British Museum. British Museum, London, pp. 231 - 1172.","Roberts, F. H. S. (1928) A revision of the Australian Bombyliidae (Diptera). Part II. The Proceedings of the Linnean Society of New South Wales, 53, 413 - 455.","Evenhuis, N. L. & Greathead, D. J. (1999) World Catalog of Bee Flies (Diptera Bombyliidae). Backhuys Publishers, Leiden, 756 pp.","Li, X. & Yeates, D. K. (2018) Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera. Invertebrate Systematics, 32 (2), 319 - 399. https: // doi. org / 10.1071 / IS 17039"]}

Key to Australian Sarginae genera 1 Wings with R 2+3 arising proximal to or above r-m; membranous strap-like lobe absent at base of wings; yellowish brown flies, usually not metallic................................................................................................................... 2 —— Wings with R 2+3 arising distal to r-m, usually beyond discal cell; membranous strap-like lobe present at base of wings; metallic flies.............................................................................................................................. 3 2 Frons wide and almost parallel in females; face slightly anteroventrally produced to form a small beak-like protuberance visible in profile view; scutum with a distinct black medial vitta; wings with vein M weak and nearly unpigmented between cells br and bm, M 1 and M 3 very weakly developed, M 4 connected to discal cell (i.e. dM 3+4 absent); alula reduced, almost linear (Fig. 4)..................................................................................... Formosargus James, 1939 —— Upper frons converging ventrally in females; face evenly rounded in profile view; scutum concolorous yellowish brown (Figs 9, 10) or dully metallic (P. longipes; Figs 7, 8), without any distinct markings; wings with vein M noticeably pigmented between cells br and bm, M 1 and M 3 well developed, M 4 separated from discal cell at least slightly by dM 3+4 ; alula large and apically expanded............................................................................... Ptecticus Loew, 1855 3 Head anteriorly produced in dorsal view, more circular and less than 1.5 times as wide as high in frontal view; occiput narrowly visible in dorsal view, with a prominent, posteriorly projecting fringe of hair-like setae; frons extremely narrow in females (index> 4), narrowly dichoptic in males by width of anterior ocellus; frontal ocellus distant from posterior ocelli, forming an elongated triangle; wings with all medial veins strong; CuA strongly curved, petiole vein CuA+CuP relatively long; apical half of alula set with microtrichia; abdomen slender elongate, about twice as long as wide (Figs 11–15).............................................. Sargus Fabricius, 1798 —— Head anteroventrally compressed in dorsal view, more than twice as wide as high in frontal view; occiput well developed and visible in dorsal view in females, both sexes without an obvious posteriorly projecting fringe of hair-like setae; frons wide in females (index CuA relatively straight, petiole vein CuA+CuP short; surface of alula bare of microtrichia; abdomen short, broad and ovoid, about 1.2–1.4 times as long as wide.......................................................................................... 4 4 Small species (length r 1 stained yellow; all medial veins faint (Figs 5, 6)........................................................................... Microchrysa Loew, 1855 —— Medium sized species (length ≥ 6 mm); head dorsoventrally compressed in anterior view, about 0.6 times as high as wide; lower frons with a distinct triangular callus diverging ventrally towards base of antennae; wing cell r 1 stained brown; veins M 2 and M 4 strong (Fig. 3)................................................................... Cephalochrysa Kertész, 1912, Published as part of Lessard, Bryan D., Yeates, David K. & Woodley, Norman E., 2020, Review of Australian Sarginae Soldier Fly Genera (Diptera: Stratiomyidae), with First Records of Cephalochrysa, Formosargus and Microchrysa, pp. 23-43 in Records of the Australian Museum 72 (2) on pages 26-27, DOI: 10.3853/j.2201-4349.72.2020.1683, http://zenodo.org/record/4654320, {"references":["James, M. T. 1939. New Formosan Stratiomyidae in the collection of the Deutsches Entomologisches Institut. Arbeiten uber morphologische und taxonomische Entomologie aus Berlin- Dahlem 6: 31 - 37.","Loew, H. 1855. Einige Bemerkungen uber die Gattung Sargus. Verhandlungen des zoologisch-botanischen Vereins in Wien 5: 131 - 148.","Fabricius, J. C. 1798. Supplementum Entomologiae Systematicae. Proft et Storch, Hafniae [= Copenhagen]. [4], 1 - 572. https: // doi. org / 10.5962 / bhl. title. 122153","Kertesz, K. 1912. The Percy Sladen Trust Expedition to the Indian Ocean in 1905, under the leadership of Mr J. Stanley Gardiner, M. A. Volume IV. No. VI. Diptera, Stratiomyiidae. The Transactions of the Linnean Society of London 2 nd Series, Zoology 15: 95 - 99. https: // doi. org / 10.1111 / j. 1096 - 3642.1912. tb 00091. x"]}

Genus Formosargus James, 1939 Fig. 4 Formosargus James, 1939: 35. Type species Formosargus kerteszi James, 1939 [DEI], by monotypy. See Woodley (2001: 190) for full list of synonymy. Diagnosis. Small (length 5–7 mm), yellowish brown species, similar to Ptecticus, but distinguished by the: frons wide and almost parallel in females; face slightly anteroventrally produced to form a small beak-like protuberance that is visible in profile; scutum with a distinct black medial stripe; wings with vein M 1 and M 3 extremely weak and nearly unpigmented between cells br and bm; M 1 and M 3 very weakly developed; M 4 issued from discal cell (i.e. dM 3+4 absent); alula reduced, almost linear; and lower calypter linear, without projecting process. Remarks. Regarding the New Guinean fauna, Chrysochlora lineata de Meijere, 1913, is congeneric with Formosargus, sharing the characters noted above in the diagnosis. Therefore, we propose moving the species into the latter genus, to become Formosargus lineata (de Meijere, 1913) new combination. Distribution. Northern Queensland, new distribution record (Fig. 2)., Published as part of Lessard, Bryan D., Yeates, David K. & Woodley, Norman E., 2020, Review of Australian Sarginae Soldier Fly Genera (Diptera: Stratiomyidae), with First Records of Cephalochrysa, Formosargus and Microchrysa, pp. 23-43 in Records of the Australian Museum 72 (2) on page 27, DOI: 10.3853/j.2201-4349.72.2020.1683, http://zenodo.org/record/4654320, {"references":["James, M. T. 1939. New Formosan Stratiomyidae in the collection of the Deutsches Entomologisches Institut. Arbeiten uber morphologische und taxonomische Entomologie aus Berlin- Dahlem 6: 31 - 37.","Woodley, N. E. 2001. A World Catalog of Stratiomyidae (Insecta: Diptera). Myia 11: 1 - 475.","Meijere, J. C. H. de. 1913. Dipteren I. Resultats de l'Expedition Scientifique Neerlandaise a la Nouvelle-Guinee. Nova Guinea 9: 305 - 386."]}