Ngirhaphium Evenhuis & Grootaert, 2002

Samoh, Abdulloh, Satasook, Chutamas & Grootaert, Patrick, 2019, NGS-barcodes, haplotype networks combined to external morphology help to identify new species in the mangrove genus Ngirhaphium Evenhuis & Grootaert, 2002 (Diptera: Dolichopodidae: Rhaphiinae) in Southeast Asia, Raffles Bulletin of Zoology 67, pp. 640-659 : 642

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 segment long. Rostrum in male small with well-developed labellae, being much larger 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); apical tarsomere with a pair of normal claws and a thickened claw-like structure beneath the posterior claw. Females with unmodified fore tarsomeres except for the terminal tarsomere that bears a long dorsal apical protuberance. Mid and hind legs with tarsomeres 1–4 with an apical comb of spinules ventrally. Wing with tip of M 1+2 sharply bent upwards just before reaching the wing border and ending near tip of R 4+5.