Ngirhaphium sivasothii Grootaert & Puniamoorthy

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 : 130-131

Ngirhaphium sivasothii Grootaert & Puniamoorthy

( Figs 7, 10 )

Ngirhaphium sivasothii Grootaert & Puniamoorthy, 2014: 150 (figs 6–8, 9–10, 17). Type locality: SINGAPORE: Semakau Island.

Diagnosis. A medium-sized species (4.5–5.5 mm), generally with dark infuscate wing and with longitudinal veins and Tp (posterior cross vein) brownish seamed. Mesonotum and tergites metallic green. Apical aristal article shorter, but nearly as long as basal article. Male with dorsal surstylus half as long as cerci, with a rectangular bend, set with very long bristles ( Fig. 7 ). Cercus much longer than dorsal surstylus, tip wide, rounded, set with many long yellow bristles ( Fig. 10 ). Outer branch of apical fork on the fore tarsomere 4 slightly shorter than inner branch.

Material examined. THAILAND: Satun province: 1 ♂, 2 ♀, Tammalang (6°32'21.05" N, 100°04'9.42" E); 4 ♂ 7 ♀, 6.viii.2014 (leg. A. Samoh); 1 ♂, 2 ♀, 3.x.2014 (reg. 34030, leg. P. Grootaert & A. Samoh); 7 ♂, 20 ♀, Tarutao Island, Talo Wao bay (6°36'58.7"N 99°40'43.1"E), 12.viii.2014 (leg. A. Samoh); 2 ♂, 1 ♀, Tanjong Po (6°36'57.43" N, 99°57'25.66" E), 3.x.2014 (leg. A. Samoh) ( PSU).

Remarks. Some specimens had quite clear wings without the brown of black seams along the longitudinal veins and the Tp (posterior cross vein).

Figures

FIGURES 7 – 12. Lateral view genital capsule: 7. Ngirhaphium sivasothii; 8. N. caeruleum; 9. N. murphyi; dorsal view cerci: 10. N. sivasothii; 11. N. caeruleum; 12. N. murphyi. Abbreviations: c: cercus, ds: dorsal surstylus (modified after Grootaert & Puniamoorthy 2014). Scale = 0.1 mm.