Elaphropeza kinshasensis, Grootaert & Shamshev, 2014

Grootaert, Patrick & Shamshev, Igor, 2014, New Tachydromiinae (Diptera: Empidoidea: Hybotidae) from different types of forests along the Congo river (D. R. of the Congo), Belgian Journal of Entomology 18, pp. 1-34 : 1-34

Elaphropeza kinshasensis sp. nov.

( Figs 36–38 )

ETYMOLOGY. The specific epithet refers to the type locality, Kinshasa .

TYPE MATERIAL. Holotype, ♂: D. R. CONGO, Kinshasa, 3 June 2012, park in city centre (Hotel Invest Presse) (reg. 32001, leg. P. Grootaert, MS reference EC35) ( RBINS). Mid leg in tray Congo 2 at position E2 with AB42405528 was extracted for DNA and a COI barcode is available at GenBank.

DIAGNOSIS. A yellow species of E. ephippiata group; thorax with postalar tubercle, postnotum, anepisternum on posterior half, anepimeron and metapleuron on upper part brownish; legs entirely yellow; hind tibia with 2 strong anterodorsal bristles.

DESCRIPTION.

Male. Occiput entirely black, finely pollinose (including vertex); with yellowish brown to yellow setation; inner verticals long, strong, inclinate, outer verticals short. Anterior ocellars long proclinate and cruciate, posterior ocellars short. Frons shining, rather narrow, above antennae nearly as broad as anterior ocellus. Antenna with scape and pedicel yellow, postpedicel and stylus brown; pedicel with circlet of subequally short setulae; postpedicel subtriangular, short, nearly 2.0 times longer than wide; stylus with short pubescence, long, 4.5 times longer than postpedicel, about 2.5 times as long as scape, pedicel and postpedicel combined. Proboscis brownish yellow, labrum brown apically. Palpus yellow, small, rounded, bearing scattered dark setulae, subapical seta thin, moderately long.

Thorax almost entirely reddish yellow, postalar tubercle, postnotum, anepisternum (= mesopleuron) on posterior half, anepimeron (= pteropleuron) and metapleuron on upper part brownish; longer setae brown. Prothoracic episterna without long upturned seta just above fore coxa. Postpronotal seta not prominent. Mesonotum with 2 long notopleurals, 1 postsutural supra­alar, 1 short postalar and 4 scutellars (apical pair long, cruciate; lateral pair very short); acrostichals arranged in 2 irregular rows, broadly spaced rows, short, lacking on prescutellar depression; dorsocentrals arranged in 1–2 rows, short, 1 pair of long prescutellars.

Legs long, slender, entirely yellow. Coxae and trochanters with ordinary setae. Fore femur with rows of anteroventral and somewhat longer posteroventral setulae, 1 long seta near base, and short subapical seta anteriorly. Fore tibia lacking prominent setae (except circlet of subapicals). Mid femur slender, with rows of dark spinule­like anteroventral and posteroventral setae, 1 long seta near base and 1 long subapical seta anteriorly. Mid tibia with black ventral spinules and subapical spine, lacking prominent setae (except subapicals). Hind femur with short anteroventrals and 5–6 short erect dorsal setae near base. Hind tibia with 2 strong anterodorsal setae near middle; apical projection rather small, rounded, brownish yellow. Tarsi of all legs unmodified, hind basitarsus with some ventral spinule­like setae.

Wing normally developed, finely uniformly infuscate; crossveins r­m, bm­cu and basal section of M pale. Costal vein with rather short setulae along anterior margin. Costal seta moderately long, brown. Costal index: 48/25/40. Vein Rs somewhat longer than crossvein bm­cu. R 1 of uniform thickness throughout. Vein R 2+3 evenly bowed. Veins R 4+5 and M 1+2 divergent near wing apex, the former slightly bowed, the latter almost straight. Crossvein bm­cu somewhat oblique. Crossvein r­m before middle of cell bm. Squama brown, with brown setae. Halter darkened.

Abdomen. Tergite 1 pale; tergites 2–3 broadly divided dorsally, represented by small lateral subtriangular brownish marks, with ordinary short setae; tergite 4 broadest, brown, with squamiform setae; tergite 5 very narrow, with squamiform setae; tergites 6–7 weaker sclerotised, tergite 7 broader, with long posteromarginal setae. Gland­like structures present between tergites 4–5, ampoule­like. Terminalia ( Figs 36–38 ) moderately large, yellow. Cerci separated; right cercus digitiform, moderately long, somewhat narrowed on apical part, with ordinary setae; left cercus digitiform, slightly longer and broader than right cercus, with ordinary setae. Epandrium completely divided. Right epandrial lamella rather elongate ovate, almost truncate apically, with numerous ordinary setae; right surstylus not prominent. Left epandrial lamella fused to hypandrium, with several moderately long setae apically; left surstylus large, elongate ovate, with numerous ordinary setae on subapical part. Two rod­shaped apodemes.

Length (mm). Wing 2.2.

Female unknown.

COMPARISON. The new species is similar to E. juakalyi Grootaert & Shamshev, 2013 . The main differences between these species have been noted in the key.

DISTRIBUTION. D. R. Congo.

Figures

Figs 36–38. Elaphropeza kinshasensis sp. nov., 36. Right epandrial lamella, lateral view; 37. Terminalia, dorsal view; 38. Left surstylus, lateral view.