Lasiocnemus obscuripennis (Loew, 1851)
Head: Black; face silver pruinose, facial swelling indistinct, mystax white, many macrosetae; proboscis and palpi black, setae black; occiput grey pruinose, setae white or yellow. Antennae: scape brown, brown setae ventrally, apruinose; pedicel brown, brown setae dorsally and ventrally, grey pruinose; postpedicel brown, grey pruinose; stylus brown, slightly longer than postpedicel; apical 'seta-like' sensory element brown. Thorax: Black, anepisternum and dorsal half of katepisternum and anepimeron grey pruinose, remaining parts brown pruinose, anepisternum and katepisternum setae yellow; scutum black, predominantly apruinose, margins grey pruinose, surface covered with yellow setae, yellow setae on pruinose part laterally and yellow and brown setae posteriorly; macrosetae: black, 1 notopleural seta, 1 supra-alar seta; scutellum grey pruinose, discal scutellar and scutellar setae long, brown. Legs: brown; coxa brown pruinose; prothoracic and mesothoracic femora with erect yellow setae anteriorly and dorsally, metathoracic femora with erect brown setae on all surfaces but yellow proximo-anteriorly and proximo-dorsally, clubbed and widest sub-distally; tibiae with erect yellow setae on all surfaces, prothoracic tibiae with yellow cleaning setae in distal half ventrally, metathoracic tibiae with brown setae proximally and dorsally, yellow setae distally; tarsomeres with black setae, first metathoracic tarsomere with yellow setae postero-ventrally; empodium three-quarters to nearly length of claw. Wings: length = 7.7–9.0 mm; cell d densely covered with microtrichia, wing pattern similar to Lasiocnemus lugens, but only cell r1 with white spot in distal part of wing; halter brown. Abdomen: Black; abdominal tergites only narrowly brown pruinose anteriorly and grey pruinose posteriorly, abdominal tergite 2 in proximal half with long white setae laterally, remaining abdominal tergites with short white setae, abdominal sternite 2 in proximal half apruinose and in distal half grey pruinose, abdominal sternites 3–4 brown pruinose.
The species is distinguished from congeners by densely arranged microtrichia in cell d, the yellow longitudinal stripe on the prothoracic tibiae, and the predominantly yellow setae on head and thorax.
Type locality: Mozambique, Inhambane, 23°51'S 035°29'E.
Afrotropical Region: Mozambique, Tanzania.
Biodiversity Hotspots sensu Conservation International: Coastal Forests of Eastern Africa.
See this map for an up-to-date distribution map based on specimen records from numerous museum collections.