Leucostrophus commasiae
Abdomen upperside with a bluish white, rather than chalky white, belt on tergites 3 and 4, rather than 4 and 5 as in Leucostrophus alterhirundo, and is mesially excised only anteriorly; the bluish white area of the 4th tergite does not quite reach the apical margin; it is of even width, narrowing a little, laterally; the 5th tergite carries a medio-basal and apici-lateral bluish spot.
Male genitalia: Uncus sinuate apically, as in Leucostrophus alterhirundo, long, slender, with long hairs. Gnathos long, simple. Valve without stridulatory scales. Harpe small, curved dorsad apically, dilated, with the edge of the dilated part slightly denticulate; surface with setiferous pegs. Phallus similar to that in Leucostrophus alterhirundo, but more strongly dentate.