Ngirhaphium Evenhuis & Grootaert

Samoh, Abdulloh, Boonrotpong, Singtoe & Grootaert, Patrick, 2015, Ngirhaphium Evenhuis & Grootaert from southern Thailand (Diptera: Dolichopodidae) with the description of a new species, Zootaxa 3946 (1), pp. 125-132 : 126

Genus Ngirhaphium Evenhuis & Grootaert

Ngirhaphium Evenhuis & Grootaert, 2002: 310 . Type species by original designation: Ngirhaphium murphyi Evenhuis & Grootaert, 2002 .

Diagnosis. Medium to large sized species (4.5–8 mm) with a metallic green or blue ground-colour. Antenna very long in males, a little shorter in females. Arista apical, basal article long. Rostrum in male small with welldeveloped labellae. Large rostrum in female. Vertex excavated (cf. Sciapodinae ).

Mid and hind coxae without exterior bristle. Femora with inconspicuous bristling. All tibiae with strong bristles. Fore leg in male with tarsomere 4 bearing an asymmetrical, apical dorsal forked protuberance (absent in females); terminal segment with a pair of normal claws and a thickened claw-like structure beneath the posterior claw. Females with the claws as usual, but the terminal segment bears a long dorsal protuberance. Mid and hind legs with tarsomeres 1–4 with an apical comb of spinules ventrally.

Wing with tip of M1+2 sharply bent upwards just before reaching the wing border and ending near tip of R4+5.