Criorrhina. 



493 



third joint considerably higher than long; arista much longer than the 



antennæ, a little thickened in the basal part. Thorax yellow or 



brownish yellow pruinose, darkest behind, with traces of greyish stripes, 



two narrow in the middle and a broad, ab- 



breviated on each side, but the colour of 



thorax is more or less hidden under the long 



and dense pile ; this latter is yellow but black 



in front of scutellum, and the black-haired 



part raay be smaller or larger until the hinder 



half is black-haired and the black hairs at 



the sides stretching quite forwards, and some- 



times thorax is all black-haired. Scutellum 



dark brown with black pile, sirailar to that 



on thorax. Pleura black, shining, yellowish 



pruinose anteriorly, the hairs are long, black, 



or more or less yellow in front. Abdomen 



somewhat short and rounded, broader than 



thorax; it is black, shining, clothed with dense hairs, a little shorter 



than on thorax ; the hairs are black on the basal part, but yellow or 



yellowish white on third and fourth segments, or on the third only on 



the hind part; often there is a row of black hairs at the hind margin 



of third segment. Venter black, shining, with long, black hairs, first 



Fig. 167. Head of 

 C. berberina d". 



Fig. 168. Antenna of C. berberina cJ", from the inside, x 40. 



segment pruinose. Legs black, the extreme apex of feraora reddish ; 

 -anterior tibiæ obscurely reddish or brownish with an indefmite blackish 

 ring before apex, hind tibiæ slightly brownish at apex; the tarsi lighter 

 or darker brownish with the last joints blackish; hind tibiæ curved. 

 The legs haired in the usual way, the hairs on femora somewhat 

 long, especially on middle femora; posterior femora with dense, some- 

 what bristly hairs below; the hairs are all black. Wings yellow with 



