Perilampsis tetradactyla Munro, 1933
Perilampsis tetradactyla Munro, 1933: 40.
Body length. 2.60-4.20 mm; wing length 3.10-4.30 mm.
Antennal segments dark brown. Arista pubescent, longest rays at most twice the width of base of arista. Frons variable, usually ventral half yellow-white, dorsal part with transverse brown band along width of orbital bristles and ocellar triangle; sometimes brownish part more extensive reaching downwards to antennal implant; sometimes ventral part more orange coloured. Two frontals, placed parallel to medial eye margin; two orbitals, placed slightly convergent with inner orbital more medially. Face white, dorsal third dark brown, sometimes completely brown. Occiput black- brown, only margins white. Thorax:
Scutum shining black-brown, more yellowish brown near transverse suture; dark dispersed pilosity, one broad transverse band with silvery pilosity and microtrichosity anteriorly of transverse suture. Postpronotum white. Anepisternum brown, with white band occupying posterodorsal part, its ventral margin reaching posteroventral corner or almost so; with pale pilosity except in posteroventral corner with few dark setulae; one anepisternal seta. Anatergite and katatergite white. Scutellum white. Subscutellum brown. Legs:
pale yellow, femora and anterior fifth of hind tibia black-brown, East African specimens with hind tibia more extensively brown coloured for anterior half. Wing:
Wing bands brown, largely reduced. No basal spots or streaks, except for subbasal band. Anterior apical band covering cell r1 completely except for hyaline spot in apical end of cell and hyaline separation from discal band near pterostigma; covering cell r2+3 only partially; with subapical tooth into cell r4+5. Posterior apical band absent. Area between subbasal band and discal band hyaline. Discal band reaching posterior wing margin. R-M ratio 0.43-0.55. Abdomen:
Shining black-brown, posterior margin of tergite 2 with narrow greyish band, tergite 5 with small yellow patch posteromedially.
Female terminalia, oviscape about two-thirds of length of abdominal tergites, shining black-brown, with black pilosity. Aculeus orange, flattened, about 6 times as long as broad, apex strongly narrowed, pointed tip.
(Description after De Meyer, 2009)
See description of Perilampsis tetradactyla Munro, 1933 in source PDF.
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