Dexosarcophaga sphaera Santos & Pape & Mello-Patiu 2022, sp. nov

Dexosarcophaga sphaera sp. nov. urn:lsid:zoobank.org:act: E5DD7085-DF04-4E1F-BDFD-BFA0BEE94A79 Figs 8B–D, 9–10 Diagnosis Vein R1 bare. Male: scutellum with a pair of reduced apical setae; vesica like a small sclerotized plate (Fig. 9D–E); juxta like a narrow band (Fig. 9D–E). Female: the two halves of T8 widely separated by at least four times the width of cercus, each half pointed in its median part (Fig. 10A–B). Etymology The species epithet ‘ sphaera ’ should be treated as a noun in apposition. The name is a Latin noun ‘ sphaera ’, meaning ‘ball’ and alluding to the spherical paraphallus. Material examined Holotype BRAZIL • ♂; Roraima, Surumu; Sep. 1966; M. Alvarenga leg.; MNRJ [lost]. Paratypes BRAZIL • 1 ♂: same collection data as for holotype; MNRJ [lost] • 2 ♂♂; Minas Gerais, Uberlândia, Clube Caça e Pesca Itororó, Cerrado Campo Sujo; 18º58′59.48″ S, 48º17′50″ W; 24 Jul. 2005; J. Mendes leg.; MNRJ [lost] • 1 ♂; Pernambuco, Tamandaré; R.F.R. Carmo leg.; MNRJ [lost] • 1 ♂, 4 ♀♀; Brasília, Distrito Federal, Fazenda Vargem Bonita; 29 Jul. 1968; R. Kano leg.; MNRJ [lost] • 1 ♂; Brasília, Distrito Federal; alt. 1000 m; 15–30 May 1957; Barros-Albuquerque leg.; MNRJ [lost]. Description Male (n=7) Length: 6–9 mm. Differs from D. phoenix sp. nov. as follows: Frons about 0.18 × head width at level of ocellar triangle; 7–10 well-developed frontal setae reaching level of apex of pedicel; gena and genal groove with slightly yellowish-silver pollinosity (Fig. 8B); first flagellomere approximately 4× as long as pedicel; thorax with slightly yellowish-silver pollinosity (Fig. 8B); intra-alars 2+2; meral setae 8–11; scutellum with pair of reduced apical setae; abdomen dark brown, with slightly yellowish-silver pollinosity (Fig. 8B); T4 with 2 pairs of lateral marginal setae; row of about 12 marginal setae on T5; inner margin of ST5 without lobes or an incision but with elongate pad-shaped protrusion (Fig. 9A); cercal prong rounded in lateral view (Fig. 9B); surstylus almost triangular (Fig. 9B); pregonite as long as postgonite (Fig. 9D); postgonite with long seta inserted near the slightly dilated anterobasal corner (Fig. 9D); vesica in lateral view in shape of small sclerotized triangular plate (Fig. 9D–E); juxta like narrow band (Fig. 9D–E); median stylus narrow, as long as lateral stylus (Fig. 9D–E); lateral stylus with base expanded towards ventral margin of paraphallus and equipped with spines apically (Fig. 9D–E). Female (n =4) Length: 6–9 mm; frons about 0.29 × head width at level of ocellar triangle; scutellum without apical setae; T5 with 10 marginal setae; T8 divided into two large and bare halves, widely separated by at least 4 × as wide as cercus, each half pointed in its median part (Fig. 10A–B); ST2–5 with one pair of long setae (Fig. 10A); ST5 almost square (Fig. 10A); ST6–8 fused (Fig. 10A–B); ST7 about 2× as long as ST6 (Fig. 10A–B); ST8 rounded (Fig. 10A–B); epiproct membranous, without setae (Fig. 10A–B); vaginal plate sclerotized (Fig. 10A–B). Distribution Brazil (Distrito Federal, Minas Gerais, Pernambuco, Roraima). Remarks Dexosarcophaga sphaera sp. nov. is similar to D. globulosa Lopes, 1946. Males of both species have paraphallus with a pointed projection on distal half and juxta like a narrow band (Fig. 9D–E; Mello 1996: figs 16, 18). These two species can be differentiated by the following features: postgonite with long seta inserted near a slightly dilated region in anterobasal corner (Fig. 9D), vesica short (Fig. 9D– E), and elongated lateral and median styli (Fig. 9D–E) in D. sphaera sp. nov., versus postgonite with long seta inserted near a slightly dilated region in anteroapical corner (Mello 1996: figs 13–14), vesica conspicuous (Mello 1996: figs 16–17), and short lateral and median styli (Mello 1996: figs 16, 18) in D. globulosa.
Published as part of Santos, Josenilson Rodrigues dos, Pape, Thomas & Mello-Patiu, Cátia Antunes de, 2022, Eight new species of Dexosarcophaga Townsend, 1917 (Diptera, Sarcophagidae) from the Neotropical Region, pp. 109-137 in European Journal of Taxonomy 828 on pages 125-129, DOI: 10.5852/ejt.2022.828.1857, http://zenodo.org/record/6823730
{"references":["Mello C. A. 1996. Revisao do genero Farrimyia Dodge, 1965 (Diptera, Sarcophagidae) - Parte I. Revista Brasileira de Biologia 56: 459 - 471."]}