282 



BOMBi'LllD-E. 



and a short apical style. Eyes in both sexes normally distant, 

 but sometimes contiguous in d" . Thorax oval or nearly rounded, 

 arched ; scutellmn short and broad. Abdomen of seven segments, 

 short oval, broader than thorax. Legs rather stout, bare, without 

 spicules. Wings in rest, halt' open ; venation as in Geron. 



Range. Europe, Asia, North Africa. 



Life-history unknown. 



The two Indian species are distinguished as follows : 



Thorax with two or three elongate light grey 



spots on anterior margin stdophila, Brun. 



Thorax with anterior margin broadly light 

 grey, produced posteriorly as four short 

 stripes maryiiuita, Brun. 



225. Usia sedophila, Brun. 



Usia sedophila, Brunetti, Rec. lud. Mus. iii, p. 227 (1909). 



cJ. Head: vertex prominent, black, shining, with a few erect 

 long hairs ; ocelli distinct, whitish ; eyes black, bare, contiguous 

 for more than half the distance from vertex to antennae ; facets in 

 front and above distinctly larger than those behind and below, 

 but no distinct dividing line. Antennae black, bare, except for an 

 occasional hair ; first two joints short ; 3rd somewhat flattened, 

 but thick and slightly curved, elongate, and with a peculiar notch 

 towards the tip on upper side, in which is a single hair. Proboscis 

 about twice the length of the head, black, cylindrical, stiff, straight, 

 bent upwards at tip, bare, except for a few minute hairs at tip ; 

 face dark greyish, with some stiff black hairs on each cheek, and 



Fig. 19. Usia sedophila, Brun., wing. 



a long elevated shining black callus between the median line and 

 the eye-margins ; back of head black, not produced behind margins 

 of eyes, with long sparse black hairs, continued on underside of 

 head. Thorax dull black, velvety on dorsum, with some black and 

 pale hairs towards the sides, and three whitish-grey elongate spots 

 on anterior border, of which the middle one is often absent, and 

 the outer ones are occasionally indistinct or absent also; lower 

 part of thorax more or less dark grey ; scutellum black, with 

 some erect light tawny hairs. Abdomen dull black, conical ; 1st 

 segment narrow, wholly black ; the remaining six broader, but of 

 diminishing length and breadth to the tip, and with a rather 

 bright yellow narrow posterior border to each segment ; dorsum 



