Udzungwomyia Grichanov, 2018

Grichanov, I. Ya., 2018, A new genus and species of subfamily Medeterinae (Diptera: Dolichopodidae) from Tanzania, Far Eastern Entomologist 350, pp. 9-16 : 10-11

Genus Udzungwomyia Grichanov , gen. n.

Type species: Udzungwomyia morogoro Grichanov , sp. n.; here designated.

DIAGNOSIS. This generic diagnosis is based on males and females of one included species, and lists features considered to be of generic importance.

Small species. Male. Body generally brown-black, weakly pollinose; face narrow, narrowing in middle about as wide as postpedicel height; facial suture distinct; antenna about as long as head height, black; postpedicel as large as pedicel, semiglobular, with indistinct apex;

stylus preapical; posterior third of mesonotum distinctly flattened; mesonotum with 1

long and 1 short notopleural, 1 humeral, 1 sutural, 1 supra-alar and 1 postalar bristles; 4 pairs of strong dorsocentral bristles in regular rows; acrostichal setae absent; lateral scutellars present, hairlike; mid and hind femora with distinct anterior preaрiсаl seta; legs with short, but distinct black major bristles; hind basitarsus much shorter than next segment; distal section of wing vein M weakly curved, R4+5 and M1+2 slightly converging on distal half, subparallel at wing apex; crossvein dm-cu positioned at wing midlength, shorter than maximum distance between R4+5 and M1+2 veins; postabdomen nearly symmetrical, with epandrial foramen positioned basally; male segments 6 and 7 bare, segment 7 reduced, devoid of setae; segment

8 well developed, setose; genitalia mostly exposed; hypandrium midventral, bifurcated from base, with two long and thin arms; phallus simple; surstylus strongly developed and distinctly divided, with ventral arm fused to epandrium, and dorsal arm free. Female terga 9+10 divided medially into 2 hemitergites, each bearing one thick spine and several long simple setae.

ETYMOLOGY. The genus is named after the Udzungwa Mountain National Park in the

Morogoro Region of Tanzania, where the type series was collected. Gender is feminine .

NOTES. Despite presence of distinct anterior preaрiсаl seta on mid and hind femora, the new genus is placed in the subfamily Medeterinae and is considered close to the genus

Neomedetera , differing from the latter in acrostichal setae absent, lateral scutellars present,

distal section of wing vein M subparallel to R 4+5, male segments 6 and 7 of abdomen bare,

male segment 8 setose. Neomedetera is characteristic in acrostichal setae biseriate, lateral scutellars absent, distal section of wing vein M distinctly converging with R 4+5, male segments 6 and 7 setose, segment 8 bare. New genus belongs to a peculiar group of mainly medeterine genera with symmetrical male postabdomen or nearly so, with epandrial foramen positioned basally. A key to World genera related to Udzungwomyia gen. n. is provided below.

Genera are included, having male postabdomen symmetrical or nearly so, with epandrial foramen positioned basally.