230 
BRITISH BEES. 
of males, and, at the same time, their burrowing spot, 
which was not larger than half-a-dozen square yards, 
was swarming with them, coming and going, burrowing 
and provisioning. Yery numerous, but not so numerous 
as themselves, were their pretty parasite, the Nomada 
Fabriciana, fine specimens of both sexes of which I have 
constantly captured; and a remarkable singularity per¬ 
taining to the latter is, that some seasons it would totally 
fail, and another season present itself sparsely, when, 
after these lapses, it w'ould recur in all its primitive pro¬ 
lusion, although the Panurgus was every season equally 
present. Both these insects are found during the months 
of June and July, especially about the middle of the 
former. In their burrows, which they perforate verti¬ 
cally, they usually enclose about six cells, each being 
duly provisioned and the egg deposited, when each is 
separately closed and the orifice of the cylinder filled up. 
This species is also found in Kent and Surrey, and I 
have no doubt thev might be discovered in most of the 
southern counties. The smaller species, which is a good 
deal like a little Tiphia, is remarkable for the peculiarity 
of the male having a projecting process upon its poste¬ 
rior femora, whence it derives its specific name, calca- 
ratus, which is hardly consistent, as it is not quite the 
right place for a spur. This smaller species is also found 
in Kent, Hampshire, and at Weybridge, in Surrey, and 
in the Isle of Wight. As well as in the Leontodon, it 
likes to repose in the flowers of the Mouse-ear Hawk- 
weed (Hieracium ). 
