256 
tellum, further two anterior and four posterior dorsocentral bristles, 
one postliumeral bristle, two notopleural, one intraalar, three supra- 
alar and two postalar bristles; the præsutural bristle is placed 
lower than the posthumeral. Scutellum with eight marginal bristles. 
Pleura yellow or pale brownish yellow, the sternopleura a little 
greyish below. Abdomen short oval, yellow, the fourth and fifth 
segments dark, greyish brown, and also the hind pait of the 
third segment darker; the second and third segments have a 
distinet narrow, brown hind margin, and the third segment an in- 
dication of a dark middle stripe. Venter yellow, darker towards 
the apex. Legs yellow, tarsi a little darker towards the apex. 
Front femora with a dorsal, posterior and postero-ventral row of 
long fine bristles, middle femora chiefly short haired; hind femora 
with some short, but somewhat strong anteiioi bi isties, foiming 
about three rows, but the middle and the lower rather incomplete. 
Front tibiæ without bristles, middle tibiæ with two somewhat 
strong posterior bristles, hind tibiæ a little curved, with two 
antero-dorsal bristles and some fine antero-ventral bi isties. Wings 
about hyaline, middle cross-vein a little seamed, posterior cross-vein 
doubly curved. 
Female. Vertex and frons broader than in the male but still 
rather narrow; the middle stripe brownish red, the sides yellow. 
Abdomen considerably darker than in the male, only the base yellow. 
Length about 7 mm. 
26.-5.-1918. 
