Aphasmaphleps bandia Grichanov, 2010

Capellari, Renato S. & Grichanov, Igor Ya., 2012, Review of the Afrotropical genus Aphasmaphleps Grichanov (Diptera: Dolichopodidae), African Invertebrates 53 (1), pp. 35-35 : 38-40

Aphasmaphleps bandia Grichanov, 2010

Figs 1, 2

Aphasmaphleps bandia: Grichanov 2010: 407 , figs 1–7.

Diagnosis: Male.Antennal stylus without apical lamella. Distal stylomere of arista-like stylus about 7× as long as basal stylomere. Veins R 4+5 and M slightly diverging apically, M evanescent. IIt 1 with ventral and anterior rows of stiff hairs, IIt 2 shorter than IIIt 3.

Redescription:

Male.

Body length 1.4–1.9 mm. Antenna 1.3–1.4 mm. Wing 1.5–1.6 mm long, 0.5–0.6 mm wide.

Head. Spherical, frons as large as third of head width, bluish green; face obliterated by contiguous eyes with enlarged ventral facets; palpus and proboscis brownish without conspicuous setae (often hidden by eyes); pair of strong and slightly divergent ocellar setae, and pair of short post-ocellar setae posteriad; pair of strong proclinate vertical setae, and pair of paravertical setae; a row of pale simple postocular setae except for the black dorsal ones, occiput flat, ventrally with some sparse pale setae.Antenna: 10, 5, 9, 14, 98; scape and pedicel slightly flattened laterally, brownish yellow, darker dorsally; scape subconical, pedicel shorter than scape and cylindrical, and with apical crown of setae, the dorsalmost longer; postpedicel subtriangular, brown, shortly pilose; stylus long, 2 nd stylomere 7× as long as 1 st stylomere.

Thorax. Bluish green, with little pruinosity; setae black. Acrostichals short, in 2 irregular rows; 1 pre- and 1 sutural intra-alar setae; 1 pre- and 2 postsutural supra-alar setae; 1 postalar; 2 notopleutals; 1 strong and 2 tiny postpronotal setae; lower surface of proepisternum with 1 or 2 setae; upper part of proepisternum with 1 small seta in front of anterior spiracle.

Wing ( Fig. 1 ). Membrane hyaline, veins brown except noted. C ending at wing apex, between R 4+5 and M; R 1 ending at basal third of wing; R 2+3 ending at apical fourth of wing; R 4+5 ending before wing apex, R 4+5 and M slightly diverging, M evanescent towards apex, after dm–cu, and slightly convex anteriorly; dm–cu very short, CuAx proportion 0.04; A 1 present as a fold; anal angle undeveloped. Lower calypter yellow with brownish cilia, haltere yellow.

Legs. I: 1.9, 1.9, 0.5, 0.3, 0.2, 0.2, 0.1. II: 2.3, 2.7, 1.2, 0.2, 0.4, 0.3, 0.2. III: 2.8, 2.9, 0.8, 0.8, 0.5, 0.3, 0.2. Lateral of CxII, base of CxIII and tips of tarsi II and III, light brown, legs otherwise light yellow. Legs devoid of major setae. CxI with 2 or 3 strong white distolateral setae and some smaller white setae on apical edge. CxII with white setae on anterior surface; TII with strong anterodorsal seta on apical ⅓, and 4 apical setae; tarsus II modified (MSSC): IIt 1 with ventral and anterior rows of stiff hairs (MSSC), and with 2 anterior setae at apex, IIt 2 shortened (MSSC). CxIII with white seta at base; TIII with 1 or 2 small dorsal setae at middle, and 4 short apical setae.

Abdomen. Tergites greenish with copper reflection, sternites brownish, St3–4 paler.

Hypopygium (Grichanov 2010, fig. 7). Hypandrium and phallus curved and extending to the level of ventral lobe of surstylus; VSur with some small apical setae and one more conspicuous dorsal seta near middle; DSur shorter than VSur, with small apical setae and 2 or 3 more conspicuous dorsal setae; postgonite curved and projected beyond level of lateral epandrial lobe.

Female.

Body length 1.4–1.6 mm. Wing 1.5–2.1 mm long, 0.6–0.7 mm wide. Very similar to male, except as noted. Face not obliterated ventrally by contiguous eyes, 0.25 head width; palpus brown.Antenna: 6, 5, 7, 2, 42; postpedicel shorter than in males, trapezoid; stylus shorter than in males, of normal size, bi-articulated at base. Wing ( Fig. 2 ). C ending in R 4+5, before wing apex; dm–cu longer, CuAx proportion 0.1; A 1 stronger, anal angle developed. Legs. I: 1.8, 1.6, 0.6, 0.3, 0.2, 0.2, 0.1. II: 2.2, 1.9, 1.0, 0.5, 0.4, 0.3, 0.2. III: 2.5, 2.3, 0.7, 0.6, 0.4, 0.3, 0.2. Coxae with black setae; tarsus I and pulvilli not modified, claws present. Terminalia . Similar to those figured for A. bickeli sp. n. (cf. Figs 14–16 ).

Holotype (examined): ♂ SENEGAL: Bandia [14°36'S 17°01'W], 16.vi.1980, B. Sigwalt, Malaise trap ( MNHN).

Additional material examined: TANZANIA: 21♂ 2♀ Mkomazi Game Reserve , 3°57.91'S 37°48.09'E, 26–30. xi.1995, open Combretum bushland, S. van Noort, yellow pan trap ( SAMC) ; BOTSWANA: 11♂ Serowe [22°23'S 26°42'E], xi.1986, M. De Meyer ( MRAC) .

Comments: A. bandia is similar to A. paulyi sp. n. in having a modified wing venation (vein M evanescent and slightly diverging from R 4+5 apically) and anterior and ventral stiff hairs on IIt 1, but can be separated from the latter by the simple antennal stylus.

Figures

Figs 1–4. Wings of Aphasmaphleps spp., permanent slides: (1, 2) A. bandia Grichanov, male (1), female (2); (3, 4) A. bickeli sp. n., male (3) female (4). Scale bars = 0.5 mm. See Material and Methods for explanation of abbreviations.

Figs 12–16. Aphasmaphleps bickeli sp. n.: (12, 13) hypopygium, left lateral (12), ventral (13); (14–16) oviscapt, dorsal (14, 16), right lateral (15). Scale bars = 0.1 mm. See Material and Methods for explanation of abbreviations.