144 STRATIOMYID.E 



remaining distance, quite bare ; facets on more than the upper half brown 

 and conspicuously larger than the black facets on the lower part, the two 

 sizes being con'trastedly separated by a line which allows the small 

 facets to extend higher up against the back of the head; bottom of the 

 eye when seen from in front but little arched as compared with the 

 sides ; eyes in life probably as in the female. Antennae scarcely as long as 

 the head ; two basal joints brown, almost equal in length, but the basal joint 

 may be slightly the longer ; third joint forming a darker elongate flagellum 

 nearly three times as long as the two basal joints together, and indistinctly 

 annulated into five rings besides being obviously pitted ; the last of these 

 rings is narrower than the others and ends in a rounded blunt tip ; none of 

 the antennal joints bear any bristles or pubescence. 



Thorax and scutellum all black, moderately shining, but the brightness 

 obscured by the dense coarse punctuation ; thorax, including the pleurae, 

 clothed all over with moderate dull yellow fairly dense pubescence, which is 

 however not dense enough to obscure the ground colour ; this pubescence is 

 about equally dense on all parts, but is rather longer and more erect on the 

 pleurse. Scutellum semicircular, with all the pubescence short, and with a 

 pair of short yellow subapical spines. 



Abdomen broad and squat, being less than one and a half times as long as 

 broad, short-oblong with rounded corners, all shining, and the sides broadly 

 pellucid pale green, while all down the middle is an irregular Ijroad black 

 dorsal stripe ; this black dorsal stripe occupies the middle two-thirds of the 

 basal segment, though it is rather narrower against the hindmargin, while on 

 each of the second and third segments it begins about one-third the width of 

 the segment and contracts by oblique lines to about one-fifth the segment 

 just before the hindmargin, on the fourth segment the black marking is much 

 wider as it occupies fully two- thirds of the base and when contracted to the 

 hindmargin still occupies more than half the width ; against this large black 

 spot and apjoarently forming part of it is the shallow triangular spot on the 

 foremargin of the fifth segment which extends down the segment for about one- 

 third of the segment's length, and then protrudes from its point a narrow black 

 dorsal line which extends down another third of the segment ; the three 

 middle segments are about equal in length, the basal and fifth segments being 

 shorter ; pubescence veiy inconspicuous and sparse, all pale except the tiny 

 black bristles on the dorsal stripe. Belly greenish_ white, but a little orange 

 about the tip ; pubescence almost absent. Genitalia showing a pair of short 

 blunt yellow lamellae. 



Legs pale orange ; coxk black, trochanters brown, and the femora on the 

 basal three-(iuarters slightly obscured ; the orange colour extends even to the 

 tips of the tarsi and to the pulvilli, though the claws are black except at the 

 base. Pubescence all pale and very slight, but there is a moderate fringe 

 behind the anterior femora. 



Wings (fig. 127) whitish hyaline, blackish about the root and distinctly 

 yellowish on the foremargin down to the end of the subcostal and cubital veins ; 

 other veins very faint and diflicult to trace except on the stem and upper fork 

 of the postical vein up to the cross-vein connecting it with the discal cell and all 

 round the very small discal cell ; subcostal and radial veins anastomosed ; 

 cubital vein not forked ; only one veinlet from the discal cell is at all lengthy 

 and even that does not reach the wingmargin, and this veinlet would 

 be the second one out of , the discal cell, the upper one being indi- 

 cated by a very short stump, while the third is entirely absent unless 

 as a fold; one veinlet from the second basal cell (the continuation of the 

 upper branch of the postical vein) is traceable though faint, and the whole 

 discal vein is veiy faint from its origin to its end except when enclosing the 

 discal cell. 8(iuam;e (alar) fairly large, chalky white or slightly yellowish, 

 triangular, with a delicate fairly long white fringe all round the margin 

 and on the surfac<-. Halteres pale greenish yellow, stem brownish. 



9 . Not much like the male, because of tlie glistening scaly yellow or bronze 

 pubescence on the thorax and scutellum and the more extended black 

 abdominal markings. Frons flat, fully one-third the width_ of the head, 

 slightly widening when nearing the antennae, black and shining but for the 



