6. STRATIOMYS 151 



beneath these are a pair of short broad orange brown blunt lamellae and a 

 short transverse blunt middle piece. 



Legs orange-yellow with the femora black ; coxse and trochanters black ; 

 femora with just the tip orange ; tibiae and tarsi orange, but all the tibiae have 

 a faint blackish ring (most conspicuous beneath) about their middle ; claws 

 black, but orange at the base. Pubescence very slight, but there are some 

 weak short pale hairs behind the anterior femora, and antero-yentrally on 

 the hind femora and quite beneath about the base ; on the tibiae and tarsi 

 the pubescence is all yellow, short, and adpressed. 



Wings brownish hyaline, but strongly brownish on the forepart because 

 of the strong tawny veins there, and blackish about the base because of the 

 strong blackish bases of the veins there ; costal, subcostal, radial, and cubital 

 veins strong and tawny, and also the stem of the postical vein, and its upper 

 branch up to the discal cell, and the veins continued round the outer part of 

 the discal cell ; discal vein thin and black as well as its fork which forms the 

 two basal sides of the discal cell ; the lower branch of the postical vein is 

 coarse and a little darkened, but all the other veins on the outer and hinder 

 part of the wing are very thin and faint; fork of the cubital vein well 

 away from the tip of the submarginal cell. Alar squamae smoky glassy, 

 with a thick dark lower margin and a short pale fringe ; thoracal squamae 

 large and pale brownish yellow with the margin concolorous, and bearing 

 over all both upper and lower discs, as well as on the margin, dense shaggy 

 long and whitish pubescence. Halteres brownish orange, with the stem 

 blackish. 



, Similar in general appearance to the male, but easily distinguished by the 

 face, frons, and conspicuous yellow eye-collar. 



Frons at the vertex more than a third the width of the head, and the 



space between the eyes very gradually widening right down to the lower 



angle of the eyes ; all the upper two-thirds of the frons shining black, but on 



the lower third the black is reduced to the middle fifth though slightly 



widening out again on the antennal prominence and continued as an equal 



black line down the middle third (or more) of the face to the mouth • 



outside this black line the frons and face are widely yellow; black 



part of the frons with very sparse very inconspicuous greyish black 



pubescence ; upper part of the shining yellow part of the frons bare and 



polished, but when level with the upper part of the base of the antennal 



prominence shallowly punctate and beginning to bear whitish pubescence, 



which becomes more abundant and conspicuous all down the sides of the face 



and in fact all over the face except on a narrow black middle line • these sides 



of the face are less shining yellow because they bear minute Avhitish dust; 



antennal prominence above and below bare and polished • a rather broad 



black stripe runs across from the lower angle of the eye to the hind corner of 



the mouth ; back of the head with an unusually broad conspicuous yellow 



marginal band against the eyes, which is equal in Avidth from top to bottom 



except that it is distinctly though slightly widened about the middle ; this 



band has a sharp edge and is quite as conspicuous on the upper part of the 



flat of the back of the head, so that it is only the middle of the back of the 



head that is black, and this is connected with the black vertex by rather more 



than half the width of the vertex ; at the lowest part of the yellow band (and 



not on the black part of the back of the head) are some long greyish white 



hairs, which become on the upper part obscurer darker grey, but on the rest 



of the band there is only some inconspicuous minute glistening yellow 



adpressed pubescence. Eyes rather small. Antennae exactly as in the male. 



Thorax almost dull black ; scutellum just as in the male, but both with 



snorter loiioescGiicc 



Abdomen above almost exactly as in the male, but with shorter pubescence. 

 Belly with similar but much larger black markings ; second segment with a 

 pair of large transverse black spots which are not near each other nor near the 

 sides, but which just touch the foremargin at their middles ; third segment with 

 a pair of very much larger transverse black spots which extend along the 

 foremargin almost to the sides, but which are still well separated ; fourth 

 segment with a pair of similar spots but more pointed towards the sides and 



