Condylostylus friedmani, Grichanov, 2020

Grichanov, Igor Ya., 2020, New species of Condylostylus Bigot (Diptera: Dolichopodidae) from Comoros Madagascar, Tanzania and South Africa, with key to Afrotropical species, Zootaxa 4830 (1), pp. 62-74 : 66-68

Condylostylus friedmani sp. nov.

( Fig. 2 )

urn:lsid:zoobank.org:act:B11457F7-27CA-4CF9-B2D8-2B00FE204996

Diagnosis. Condylostylus friedmani sp.nov. belongs to the C. burgeoni species group ( Grichanov 2010), differing from other species in the swollen fore tibia, with apicoventral excavation surrounded by a fan of short setae; fore basitarsus cylindrical, with small basoventral mound bearing short hairs; postabdomen half as long as body length, with extremely long filiform cercus with basoventral projection. All other species of the group have simple fore tibia, flattened and widened fore basitarsus on at least the distal half, and shorter cercus in males.

Description. Male ( Fig. 2A ). Body length 4.8 mm; antenna length 1.3 mm; wing length 3.7 mm; wing width 1.2 mm. Head ( Fig. 2B ): frons metallic blue, shiny, weakly pollinose at antennae; strong anterior vertical bristle arising from small mound; upper postocular setae black, short; ventral postcranium covered with irregular white hairs; face densely white pollinose, narrow, under antennae 2 times wider than postpedicel, at clypeus as wide as postpedicel; strongly bulging clypeus nearly as long as upper part of face (epistome); antenna ( Fig. 2C ) black with scape partly brown, as long as height of head; pedicel with short bristles, with 1 long dorsal and 1 long ventral bristle; postpedicel rounded, as long as high, with short hairs; arista-like stylus dorsal, microscopically haired; length (mm) of scape, pedicel, postpedicel, stylus (segments 1 and 2), 0.08/0.08/0.11/0.05/1.01; proboscis brown; palpus black, with white hairs. Thorax: mesonotum and scutellum metallic blue-green; pleura bronze-green, white pollinose; 5 dorsocentral bristles gradually decreasing in size anteriorly with 2 strongest posterior pairs; acrostichals short, biserial; scutellum with 2 pairs of strong setae. Legs: mostly yellow; fore coxa yellow; mid and hind coxae brownish black with yellow distal apex; fore and mid tarsi black from tip of basitarsus; hind femur blackish brown on distal quarter; hind tibia brown; hind tarsus black; fore and mid coxae with yellow hairs and 2–3 black subapical setae; hind coxa with 1 black seta at base; fore femur ( Fig. 2D ) with stiff black erect ventral hairs, more than half as long as height of femur; mid and hind femora with rather short ventral hairs on basal half; fore tibia ( Fig. 2D ) distinctly swollen, with 3 dorsal setae and elongate ventral hairs on distal 1/3, with apicoventral excavation surrounded with fan of short setae; fore basitarsus cylindrical, with small basoventral mound bearing brush of short light hairs; all tarsomeres covered ventrally with short curved semi-erect hairs; mid tibia with 3–4 strong anterodorsal and 1 posterodorsal, without ventral setae; mid tarsomeres simple, cylindrical; hind basitarsus with small basoventral seta; tarsomeres 3–5 of hind tarsi inconspicuously thickened; femur, tibia and tarsomere (from first to fifth) length ratio (mm): fore leg: 1.19/1.47/0.84/0.41/0.3/0.17/0.14, mid leg: 1.55/2.26/1.67/0.45/0.36/0.17/0.12, hind leg: 1.67/2.1 6/1.03/0.43/0.23/0.15/0.13. Wing ( Fig. 2E ): widened apically, hyaline in basal part, dark in apical half anteriorly, brownish along veins M 1 and dm-m, veins brown; R 4+5 slightly curved to M 1; M 1+2 straight in basal half, slightly convex anteriad in middle part; M 1 with nearly right-angular elbow, forming right angle with M 1+2; ratio of parts of costa between R 2+3 and R 4+5 to those between R 4+5 and M 1, 9/1; crossvein dm-m slightly convex; ratio of crossvein dm-m to apical part of M 1+2 (fork-handle) to apical part of M 4, 44/80/31; anal vein fold-like; anal lobe broad; anal angle acute; lower calypter brownish, with fine black cilia; halter yellow with brownish stem. Abdomen: not thin and long, metallic blue-black, with short black hairs; 1 st segment with white hairs; pregenital segments combined nearly 2 times as long as mesonotum; postabdomen half as long as body length; hypopygium ( Fig. 2F ) brown-black, with short black hairs; epandrium brown distodorsally; cercus brownish black, long, filiform, with rounded basoventral lobe bearing brush of light hairs; cercus with short dorsal hairs at base, with ventral comb of erect light cilia at basoventral lobe and another comb of erect light cilia in middle, 2–3 times longer than width of cercus, with ventral row of twice longer dark curved setae on apical part; cercus 5.5–6 times longer than epandrium; surstylus and epandrial lobe greatly reduced. Female. Similar to male except MSSC. Face wider, at narrowest point wider than postpedicel, nearly parallel-sided; hind femur brown at apex; hind tibia brownish, yellow distally; tarsi black from middle of basitarsus; wing with more blackish pattern.

Etymology. The species name is dedicated to Dr. L. Friedman, an Israeli entomologist (SMNHTAU).

Type material. HOLOTYPE ♂, labelled: Madagascar, Andasibe , 950 m, Analamozaotra Forest, 18°46ʹS, 48°24ʹE, 31.x–4.xi.2007, L. Friedman (SMNHTAU).

Additional material. 2♀, same data as holotype .

Distribution. Madagascar.

Figures

FIGURE 2. Condylostylus friedmani sp. nov., male. A. Habitus. B. Head. C. Antenna. D. Fore femur and tibia. E. Wing. F. Hypopygium, right lateral view.