Krombeinidia Lelej, 1996

Williams, Kevin A., Lelej, Arkady S., Okayasu, Juriya, Borkent, Christopher J., Malee, Rufeah, Thoawan, Kodeeyah & Thaochan, Narit, 2019, The female velvet ants (aka modkhong) of southern Thailand (Hymenoptera: Mutillidae), with a key to the genera of southeast Asia, Zootaxa 4602 (1), pp. 1-69 : 33

Genus 23. Krombeinidia Lelej, 1996

Diagnosis. FEMALE. This genus can be separated from other Oriental mutillids by the following combination of characters: propodeum narrower than or as broad as pronotum; scutellar scale distinct; T2 disc with two laterally disposed white to golden setal spots; T2 apex with narrow band of appressed white to golden setae; pygidium defined by lateral carinae and usually entirely smooth. The pygidium of Krombeinidia is usually narrower and more convex than Petersenidia . MALE. See Lelej (1996c).

Diversity and Distribution. This genus includes 24 species and is widespread in the Oriental region ( Lelej 2005).

Remarks. This is the most diverse genus of the former tribe Petersenidiini (Trogaspidiini with males having symmetrical penis valves) in Southeast Asia with Krombeinidia meeungensis ( Cockerell, 1928) being the only described species known from Thailand. The females are difficult to separate from Petersenidia , although the males can be reliably separated with genitalic features. Because the species described below are known from females only, molecular data or sex associations may eventually provide evidence to transfer them into different genera.