This species is distinguished from its congeners by the following combination of characters: Forefemur almost entirely yellow, with anterodorsal brown stripe distally; mid- and hindfemora predominantly black, apices yellow; posteroventral brush on hindtarsus yellow.
Male. Predominantly black; forecoxa, forefemur except anterodorsal brown stripe distally, apices of mid- and hindfemora, mid- and hindtibiae, and mid- and hindtarsi except distal tarsomeres yellow. Palpus largely yellow with black tip. Posteroventral brush on hindtarsus yellow.
Head: Anterior frontal seta about half as long as posterior frontal seta. Postorbital region very long, about 1/3x as long as eye.
Wing: Length: 1.8-2.6 mm.
Abdomen: Tergites 1-4 microtrichose and subshiny medially, lateral and posterior margins polished; microtrichose spots progressively decreasing posteriorly, so that tergite 4 microtrichose only anteromedially or entirely polished. Tergite 5 and all sternites polished. Abdominal reservoirs present.
Female. Differs from male in palpus more extensively black and slightly broadened. (Brake & Freidberg 2003)