272 
FOREIGN BEES. 
entomologists, to describe it more in detail. In its 
general form it is broad and depressed, the colour 
shining black, the abdomen being duller than the 
thorax, the latter clothed in front with short black 
hairs, and the sides and extremity of the abdomen 
are fringed with longer hairs of the same colour. The 
eyes are of a dull white, and approaching each other 
at the hinder part of the head, but separated by a 
considerably wider space than those of X. latipes. 
Antenna: black, the basal joint not dilated as in the 
species just named ; legs black, clothed with long 
hair, the anterior tarsi of a dirty white colour, the 
basal joint very thin, flat, and broad, (but not so di- 
lated as in X. latipes,) and furnished, especially on 
the outer edge, with a thick brush of brown hairs, 
the terminal joints flat and brown, with a similar 
brush on the outer margin, the brush on the inner 
margin of these joints being much shorter and thicker 
than in X. latipes. The wings are nearly opaque at 
the base, but become gradually more transparent at 
the tips; the former portion with an intense violet 
gloss, which is gradually shaded off to a coppery 
green.* (In X. latipes the wings have a green gloss 
at the base, which is - shaded off into a purple 
bronze.) The clypeus is black, with the exception 
of a very minute pale spot on each side, close to 
the base of the mandibles. 
This species is from India, and the individual figured 
* Mr. Westwood is of opinion that the colour of the gloss 
of the wing affords a very good, although hitherto neglected, 
specific character in this difficult genuB. 
