3. CHRYSOPS 433 



the allied species and dull yellow with sometimes a few black hairs inter- 

 mixed. Scutellum shining black, with fairly long brownish yellow pubescence, 

 and sometimes with a few black hairs about the tip. 



Abdomen dull deep black with orange and orange brown markings ; first 

 segment with the sides orange and that colour extending on the hind- 

 margin to nearly a quarter of the segment on each side • second segment with 

 all the sides and a broad irregular triangle extending to almost a third of the 

 segment on eacli side bright orange, and a dull orange or grey triangle against 

 the middle of the hindmargin, leaving consequently a broad subqviadrate 

 black spot which is notched behind and which occupies more than the middle 

 third of the hindmargin, and this spot is extended in width just above the 

 middle and strongly but rather narrowly against the foremargin almost to 

 the sides ; third segment with the sides and the hinder half or less on the 

 side thirds dark orange brown, as well as a triangle against the middle of the 

 hindmargin, leaving the middle five-sixths of the anterior half of the segment 

 black as well as the middle third on the hinder half except for tlie notch 

 behind ; fourth and fifth segments with similar but more obscure markings ] 

 sixth and seventh segments short and obscure. Pubescence orange at the 

 sides of the two basal segments and often on all the orange part, but 

 frequently the tiny hairs are black on the inner hinder part of the orange on 

 the second segment with a few stragglers on the rest, and sometimes black 

 hairs extend though inconspicuously over all the orange part of the disc ; the 

 black hairs on the black part of these segments are shorter than the hairs on 

 the orange part ; a rather conspicuous patch of orange hairs occurs on the 

 orange triangle against the middle of the hindmargin ; pubescence black on 

 all the rest of the sidemargins, and also on all the third segment except the 

 mid hindmarginal triangle and slightly on the hindmargin more towards the 

 sides, but orange on the fourth segment on all the hindmarginal fringe except 

 just at the sides and a little at the middle where the dark orange triangle 

 should be ; the orange pubescence on the fifth segment extends all over 

 except on the base and just at the sides, and apparently over most of 

 the sixth and seventh segments except at the sides ; the longest 

 pubescence on the abdomen is the black fringe at the sides of the third, 

 fourth, and fifth segments. Belly greyish black, extensively dull orange 

 on the three basal segments and slightly so on the fourth ; middle half 

 of the first segment and rather less than the middle third of the longish 

 second segment though not quite to the hindmargin, and also nearly the 

 middle half of the shorter third segment though distinctly not extended to 

 the hindmargin; in consequence of the third segment being shorter the 

 middle black part appears flatter and is less determinate than that on the 

 second segment ; on ithe fourth segment the sides and hindmargin are rather 

 obscurely orange, while on the next three segments the hindmargins are 

 rather narrowly orange ; pubescence nearly all orange, especially as fringes on 

 hindmargins, but the segments (after the two basal ones) bear some black hairs 

 on the disc. Genitalia black about the base but with two terminal lamellae 

 which are brownish orange at their ends. 



Legs black ; front tibiae obscurely ferruginous on the basal half, and all 

 the posterior tibise orange except just the base and tip ; all the basal joint 

 except the tip of the posterior tarsi orange, and also the base of the second joint. 

 Pubescence on the front coxse long ancl orange ; front femora with extensive 

 rather dense iDlack fringes in which some pale hairs are mingled ; posterior 

 femora with long straggling pale hairs and a few long black hairs intermixed ; 

 hind tibiae with the usual abundant black suberect pubescence all over 

 though most conspicuous dorsally. 



Wings blackish with the hyaline spaces restricted to two incomplete 

 bands which widen below ; the basal ( = middle) hyaline band is composed of 

 a hyaline space on the upper basal cell before its tip, which extends rather 

 more widely across the second basal cell, and then to more than the basal 

 half of the anal cell, and on the inner basal third of the axillary cell, leaving 

 all the rest of the anal and axillary cells with a rather washed-out broadly 

 darkened hindmargin ; this leaves three-fourths of the upper basal cell and 

 three-fifths to a half or the lower basal cell blackish, ancl sometimes the latter 

 has a dark middle streak right through the cell ; the outer hyaline band has 



2e 



