DIAGNOSIS. (1) Maxillary palpus with white scales; (2) scutun with dorsocentral setae; (3) scutum with a distinct patch of broader crescent­shaped white scales on fossal area; (4) prescutellar area with all broad, flat, metallic silvery white scales; (5) subspiracular area with broad white scales; (6) postspiracular area without scales; (7) paratergite with broad white scales; (8) scutellum with broad white scales on all lobes; (9) white knee­spot absent on forefemur, present on mid­ and hindfemora; (10) midfemur with a large, white spot on anterior surface; (11) hindtibia anteriorly dark, without a white stripe in basal area; (12) hindtarsus with a basal white band on tarsomeres 1–3; and (13) hindtarsomere 4 all dark.