Asycampta umngeni Jaschhof & Jaschhof 2023, sp. nov

Asycampta umngeni Jaschhof & Jaschhof, sp. nov. urn:lsid:zoobank.org:act: BB4EB2CA-C492-45FE-9F9D-7CB07C10C72D Figs 11–15 Differential diagnosis. The male of this small species is characterized by the following terminalia structures. The gonostylus is unmodified apically (Fig. 11, arrow 1); the posterior margin of the ninth tergite has a deep, V-shaped notch medially (Fig. 12, arrow 2); the gonocoxal ventral emargination is shallow, with broad, largely glabrous margin basally (Fig. 11, arrow 3); and the small tegmen has 2 pairs of processes, of which the ventral are T-shaped (Fig. 13, arrow 4) and the lateroposterior are thick and comma-shaped (Fig. 13, arrow 5). This is the only Asycampta for which the venation includes a posterior fork formed by veins M 4 and CuA (Fig. 14). Male description. Body length 1.2 mm. Head. Eye bridge 4 ommatidia long at vertex.Antenna as long as body, with 15 flagellomeres, all with circumfila; apical flagellomere subdivided. Neck of fourth flagellomere 1.25 × as long as node (Fig. 15). Labellum with several stiff setae apically. Palpus with 4 setae-bearing segments. Thorax. Pronotum glabrous; 3 anepisternal setae; 2 anepimeral setae. Wing (Fig. 14). Slightly longer than body, length/ width ratio 2.8. Basal longitudinal vein nearly straight. Both veins M 4 and CuA weak, extending to wing margin. Legs. Foreleg with femur and tibia of equal length, tibia 1.1 × as long as T 2. Claws moderately bent, 1 large, pale basal tooth. Empodia vestigial. Terminalia. Ninth tergite with unusual, characteristic outline, setae arranged in 2 lateral clusters (Fig. 12). Gonocoxal synsclerite strongly narrowed anteriorly; anterior margin broadly rounded, weakly contoured; posterior portions of dorsal apodemes characteristically angled; anterior portions long, their lengths equal to distance separating them (Fig. 11). Gonostylus 2 × as long as high, straight, slightly flattened, moderately convex posteriorly, slightly tapered towards apex; basolateral apophysis normally sized; setae near apex conspicuously small (Fig. 11). Phallapodeme simply rod-shaped, as long as tegmen, well sclerotized, mouths of accessory gland ducts indistinct (Fig. 13). Seemingly 2-pointed apex of tegmen small; parameral apodemes normal size (Fig. 13). Etymology. The specific epithet umngeni is a noun in apposition and refers to uMngeni, a local municipality in which the Karkloof Nature Reserve is located and type locality of the species. Type material examined. Holotype. Male, South Africa, KwaZulu-Natal, Karkloof Nature Reserve (29°19.1′S: 30°15.5′E), 1325 m elevation, mistbelt forest, 28.ix.–24.xi.2005, Malaise trap, M. Mostovski (NMSADIP 212002).
Published as part of Jaschhof, Mathias & Jaschhof, Catrin, 2023, A review of Afrotropical Porricondylinae (Diptera: Cecidomyiidae), with descriptions of five new species of Asynaptini from KwaZulu-Natal Province South Africa, pp. 261-275 in Zootaxa 5244 (3) on pages 269-270, DOI: 10.11646/zootaxa.5244.3.4, http://zenodo.org/record/7656363