3*0 



present. Thoracal squamae usually darker. 



Legs as in the female, but all the fringes slightly longer and 

 more conspicuous with less paler hairs, or rarely in only the upper-outer 

 one of the hind tibiae with somewhat numerous yellowish brown hairs 

 intermixed. 



Abdomen long conical, with the second segment usually broad- 

 est, and with the pointed anal apex, slightly longer than the head and 

 thorax (including the scutellum) together. Dorsum reddish brown or 

 rarely dark brown, with the last three segments blackish, the median 

 triangles and narrow bands more yellowish (or yellowish red) than grey, 

 while the blackish longitudinal spots just above the triangles always 

 exist and rather well-defined ; pubescence except on the triangles and 

 bands longer and blackish, and at the sides there is no yellowish 

 hairs. Ventre as in the female but usually more browner than the 

 redder species of the female, caused by only the blackish pubescence 

 except at the narrow yellowish posterior margins of the first four 

 segments ; pubescence more conspicuous than that in the female, and 

 on the seventh segment there are more numerous much longer erect 

 black bristly hairs. 



Length : 19-23 mm. 



This species apparently varies considerably in the colour of the 

 abdomen both dorsally and vent rally, as some specimens are much 

 more blackish (nearly black) or yellowish, but there is little variation 

 in the males I have examined ; the frontal triangle varies from pale 

 greyish yellow to silvery white ; the antennae are always mainly red- 

 dish, but the basal joints are often darkened, and the third joint is 

 sometimes quite darkened all over ; the amount of pnle pubescence on 

 legs, varies a little in the male, and very much in the female ; the 

 yellowish pubescence on the stalk of the proboscis is rarely quite 

 absent in the female. One female specimen, from Hokuzanko in the 

 district of Nanto, has five distinct dorsal stripes on the thorax, and 

 bears an orange yellow postocular ciliation intermixed with a very few 



