120 STRATIOMYID^ 



yellow spot whicli is connected by a narrow line to a widening yellow streak 

 which extends along the upper margin of the mesopletxrae to the wing-base, 

 and which is then turned a little downwards. Pubescence rather abundant, 

 nearly erect and not short, brownish yellow, but longer on the pleurae, and 

 universal (even to the disc of the metanotum) except on the large middle 

 part of the mesopleurte. 



Abdomen shining whitish yellow, but black on most of the basal segment 

 (except the hindmargin towards the sides) and for neai-ly half-way down 

 the middle of the second segment, and with rather more than the basal half 

 of the fourth segment black {vide variations later on), and most of the fifth 

 segment except a wide flatly arched spot on the hindmargin, but all the actual 

 margin of the abdomen is whitish except perhaps on the last half of the fifth 

 segment ; not uncommonly the fourth segment is more whitish until there 

 may remain only three black spots against the foremargin, which may vary 

 considerably in size and shape and may even be reduced to three very small 

 upright narrow black spots, while the whitish part of the fifth segment may 

 occupy all the hindmargin ; pubescence universal but very short and in- 

 conspicuous, pale yellow. Belly black with the middle third or more of the 

 second segment whitish yellow, and the extreme hPndmargins of the third and 

 two following segments obscurely yellowish ; the extreme margin is also 

 yellowish ; third segment sometimes with just the middle part yellowish, while 

 sometimes the fourth segment has barely the basal half black and even on 

 that a pair of widely separated yellow spots near the foremargin, and the 

 fifth segment may have a broad yellow hindmargin ; pubescence s^mrse, 

 depressed, short, and pale. Genitalia black, with broad brownish lamellte 

 and outside them a pair of thin black spines. 



Legs almost as in the allied species, but there is a slight postero- 

 dorsal darkening on the anterior tibise just after the middle even sometimes 

 forming a pale brown ring, and the base and tip of the hind tibiae are 

 orange on nearly the basal third and the apical quarter so that the black 

 ring occupies hardly half the tibiae; claws more conspicuously orange at 

 the base. 



Wings (fig. 122) very similar to those of the allied species. Alar squamae 



Fia. 122. — Nemotelus uliginosus (J. x 14. 



light brownish glassy with a yellow margin and a short pale fringe ; thoracal 

 forming brown roundish lobes and bearing a rather long light grey fringe. 

 Halteres yellowish white with the base of the stem a little darkened. 



$ . Very different from the male. Snout as long as the eyes (in profile) ; frons 

 rather coarsely roughened which causes it to be less shining, more than one- 

 third the width of the head, and bearing a pair of large conspicuous yellowish 

 white or orange spots a little above the antennc-e which slope forwards and 

 almost meet ; pubescence scattered, but in perfect specimens forming a large 

 patch on the middle of each side and obvious because it is whitish, and this 

 scattered pubescence extends down the snout and jowls, but is much more 

 dense on the swollen out back of the head, and is more adpressed and con- 

 spicuous there. Eyes small ; facets all small and equal. Antennae placed 

 about half-way down the snout and hardly so far forward as in N. 

 pantherinus. 



Thorax rather thickly punctate; the whitish humeral spot large and 

 connected along the top of the mesopleurje by a narrow line with the dilating 

 praealar si)ot on the mesopleurae. Pubescence short and adpressed, whitish 

 yellow, universal but not abundant. 



