Nemotelus nigrinus, the all-black snout, is a Holarctic species of soldier fly.
Description A small species (4.0 to 4.8.mm). Its cubital vein (R 4+5) is unforked. Its body is all black, without any pale patterning. Its frons are without any white spots. The distance from the base of the antennae to the tip of the rostellum is greater than the distance from the antennal base to the commencement of the narrow part of the frons. Median outgrowths of hypandrium and outgrowth of basal segment of gonopodites are absent. Its aedeagus has two basal projections which are at a right angle to the plane of the aedeagus.Seguy. E. Faune de France Faune n° 13 1926. Diptères Brachycères. 308 p., 685 fig.George Henry Verrall Stratiomyidae and succeeding families of the Diptera Brachycera of Great Britain – British flies (1909) BHL Full text with illustrationsE. P. Narchuk in Bei-Bienko, G. Ya, 1988 Keys to the insects of the European Part of the USSR Volume 5 (Diptera) Part 2 English edition. Keys to Palaearctic species but now needs revision.
Biology The flight period is May to July. Its habitats are fens and marshes, flower meadows, and flower rich grassland.
Distribution North and Central Europe, North and South USSR, Caucasus, Siberia, Central Asia, Mongolia, North America.
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