G4 
MR. J. B. BRIDGMAN ON HYMENOPTBRA IN THE 
plantation — swept off the banks of a lane, not far from eacli other. 
This is a handsome insect, and one of the few Braeons which 
have the antennae tricolored, i.e. red at the base, white in the 
middle, and black at the apex. In two families the females, 
as a rule, have the antenme white-ringed, and now and then the 
males also. About the same time and place I took a female 
of another Bracon, Meteorus albicnrnis, B., which has the antennas 
tricolored. This I swept also on the bank of the cross lane leading 
from Earlham to Eaton, off the vegetation at the foot of the old 
Ash trees which line the lane on one side : this appears to be far 
from common. In the same lane I swept two females of Spathius 
rubidus, B., which I think are most probably parasitic on the 
larvae of some of the Beetles boring in the old trees. It is very 
singular that certain species of insects should be so plentiful some 
years, and scarcely, or not at all seen in others. At the end of 
August and September I took the small Tliersiloclius rufipes, EE, 
hitherto unrecorded as British ; I had never met with it before ; but 
this year I took two females, and the males were so plentiful that 
I often had more than a score in the net at a time. 
Some years ago, at the latter end of summer, I found a large 
number of the cocoons of Apanteles congestus ; these cocoons are 
oval masses, like little balls of yellowish-white cotton on grass 
stems. In that year the Moth Plusia gamma was recorded 
as swarming pretty well all over the country, and I believe this 
species was parasitic on the larvae of that Moth. I never saw 
the cocoons in such profusion before or since, and I think I must 
have collected a pint of them. I bred two species of Pezomachus, 
the little apterous Gryptid , which I had not taken before or since, 
but unfortunately only the female sex in either case. Also at 
Earlham, in July, I took a female of Hemiteles liadvocerus, Tli. 
It is new to Britain, and the handsomest British species of the 
genus I have seen. It is bright red, with a black head, the antennae 
are tricolored, and the wings have deep black bands across them. 
About the same time and at the same place I took a male and 
female of Hemiteles melanogaster, Th., also new to Britain. On 
July 20th I took a female of Blacus maculipes, Wesm. This 
appears to be scarce. The Bev. T. A. Marshall had not met with 
it, and had to take his description from that published by other 
authors. Ilaliday used to take it in Ireland. It has not been 
