XYLOOOPA CORNIGER. 
271 
rich violet blue tint at the base, which alters slightly 
to greenish near the middle, and this is shaded off to 
coppery brown at the tips. 
The locality is unfortunately unknown ; it is pro- 
bably Africa. 
XYLOCOPA ( PLATYNOPODA , WEST.) 
TENUISCAPA. 
Plate XXIII. Fig. 2. 
This figure represents a species very closely related 
to X. latipes, and the existence of another with 
greatly dilated tarsi renders it expedient to propose 
a distinct section or subgenus for their reception, 
which Mr. Westwood has accordingly done under 
the above name. In addition to the peculiarity just 
noted, the males have the eyes approximating at the 
hinder part of the head. The near resemblance of 
this insect to X. latipes will at once appear from 
comparison. (For this purpose X. latipes is figured 
on the same plate, fig. 1.) The distinctive marks 
may be embodied in the following short specific 
character : — X. tenuiscapa, W. ; black, somewhat 
shining ; the first joint of the antennae not dilated at 
the apex, which is scarcely thicker than the base ; 
eyes not widely apart behind ; the second, third, and 
fourth joints of the anterior tarsi with a rather short 
brush on their inner edge ; wings very glossy, violet 
at the base, and tinged with copper at the tip ; 
length 1 T 'jj inch, expansion of the wings 2| inches. 
As this handsome species is now figured for the 
first time, it will be necessary, for the satisfaction of 
