6 ARKIV FÖR ZOOLOGI. BAND 13. N:0 6. 



low, the remaining f lageliar segments dark brown; first 

 scapal segment long, the second pyriform; first flagellar seg- 

 ment a little longer than the second, subequal to the third; 

 the first two segments have short verticils, those on the 

 other segments being longer; apical flagellar segments greatly 

 attenuated. Head gray, more yellowish on the occiput; in 

 the unique type, the inner margin of the eyes is broadly 

 bordered by brown but this seems to be due to a discolo- 

 ration. 



Mesonotum light brownish yellow, the praescutum with 

 five narrow, subequel, dark brown stripes, the median stripe 

 slightly longest, the lateral stripes directed cephalad and 

 proximad and becoming confluent with the sublateral stripes; 

 remainder of the mesonotum grayish testaceus. Pleura dull 

 yellow, sparsely pruinose, with a broad, dark brown ven trål 

 stripe extending from the cervical sclerites to the base of 

 the abdomen, passing ventral of the base of the halteres. 

 Halteres slender, dull yellow. Legs with the coxae narrow, 

 påle yellow; trochanters dull yellow; remainder of the legs 

 broken. Wings with a deep yellow suffusion that is about 

 uniform över the entire surface; a few rather small påle 

 brown spöts as follows: at the origin of Bs; at the tip of 

 Sci, continued caudad to the fork of B2+3; a large area at 

 the fork of Rs; outer end of cell 1st 31 2 and the basal de- 

 flection of Cui seamed with brown; smaller spöts at the end 

 of i?2, B2 and the fork of Mi^2' Venation: Se very long, 

 extending beyond the fork of R2-^3, Sc2 at the very tip of 

 Sci and exceeding it in length; r lacking; Rs square and 

 spurred at origin; cells Rsj R5 and 1st M2 in oblique align- 

 ment; cell 1st M2 narrowed at its base, broadened outwardly; 

 m a little shorter than the outer deflection of Ms] petiole of 

 cell Ml a little longer than the basal deflection of Cui^ the 

 latter near midlength of cell 1st M2. 



Abdomen brownish yellow with a narrow brown lateral 

 line; sternites dull yellow. Ovipositor with the tergal valves 

 slender, cylindrical, the tips acute, the surface minutely and 

 shallowly pitted to give a reticulate appearence; sternal bla- 

 des much longer than the tergal valves, their origin basad 

 of the origin of the latter, flattened, the tip, viewed from 

 the side obtuse. 



