238 THE CANADIAN ENTOMOLOGIST 



Sternal valves exceedingly short, tergal valves long, serrated on the 

 outer margin; wings clouded brown, gray and hyaline. 



Female. — Length about 23 mm.; wing 18-18.8 mm. 



Female. — Palpi with the base dark, the apical segments pale; 

 frontal prolongation of the head rather short, dark above, pale 

 beneath ; .antenna?, four basal segments light yellow, the remaining 

 segments a little brown at the base, yellow apically ; front, vertex and 

 occiput dull yellow, the head with an elongate brown median stripe. 



Mesonotal pracscutum light brown, with three broad dark 

 brown stripes of which the median one is very broad and is 

 bisected by a pale line, lateral stripes close to the median one; 

 scutum dull brownish yellow, the lobes mostly dark brown; 

 scutellum brownish yellow; postnotum light brown, with three 

 dark brown longitudinal stripes. Pleura brown, much darker on 

 the mcsosterna. Halteres rather short, dull yellow, the knob a 

 little brown. Legs, coxae with the externo-cephalic face brown; 

 trochanters dull yellow, femora and tibiae yellow, the tips brown; 

 tarsal segment 1 brownish yellow, brown at the tip; segments 2-5 

 brown. Wings gra\-, cells C and Sc yellowish brown; dark brown 

 blotches as follows; At base of vein M, in middle of cell ]\L ad- 

 joining vein Cu, at origin of Rs, stigmal region including the 

 cephalic portion of the cord. Hyaline blotches scattered over the 

 wing, the largest beyond tlie stigma, extending obliquely across the 

 M-ing to cell 1st Ma; a large blotch in cells R and M near the 

 basal third, another in cell M near the tip; others before the 

 stigma and in the anal cells. Venation (see plate XVL fig- 4). 



Abdominal tergites brownish yellow, with three indistinct dark 

 brown longitudinal stripes which extend the length of the abdomen. 

 ()\ipositor of a remarkable structure; viewed from beneath (see 

 plate XIX, fig. 6), the sternal valves are remarkably short, not 

 even attaining the base of the upper valves; upper valves parallel 

 on a horizontal plane, slightly curved, the inner margin smootii, 

 the outer margin with numerous saw-like teeth. Stcrniles dull 

 yellow, a broad brown longitudinal median stripe rather indistinct 

 on segments 1-3 but becoming darker and better defined on the 

 apical segments. 



Holotype, 9, Tokyo, Japan; August, 1!)12; \ i.ll 41. 



Paratype, 9 , Tokyo, Japan; August, 1912; vial 41. 



