CONTRIBUTIONS TO OUR KNOWLEDGE OF BRITISH BRACONIDA. 269 
(Trans. Entom. Soc.,’ 1885, p. 211), and probably he partly 
described the species from them. 
In the British Museum is a single specimen labelled ‘‘ type.” 
Marshall describes the metathorax as smooth, but under a 
magnification of six diameters it appears distinctly subrugulose. 
He also gives the colour of the cocoons as “* brownish white” ; 
possibly this is only another way of saying they are pale buff- 
coloured. The broods usually consist of from twelve to fifteen 
individuals. 
In September, 1911, the larvae of Notodonta ziczac were very 
plentiful in the New Forest, and many of them, generally when 
full fed, produced this parasite. The parasite larvee remained 
within their cocoons until the following spring, when they 
pupated, and the imagines duly emerged. In one case, from a 
brood of twelve which left the host on September 9th, a single 
imago appeared on the 18th of the same month, the remainder 
not emerging until the following April. Harwood has sent me 
this species from Colchester, where he obtained it as a parasite 
of N. dromedarius, and it has also been bred from N. dict@otdes. 
It is particularly liable to the attacks of hyperparasites. I have 
bred the following, most of themin some numbers: Panargyrops 
@reus, Grav. ; Hemiteles fulvipes, Grav.; H. crassicornis, Grav. ; 
H. ereator, Panz.; Pezomachus instabilis, Forst. ; and Mesochorus 
. brevipetiolatus, Ratz. 
Complanatus, sp. nov. 
Black; palpi pale; legs testaceous; the fore and middle coxe 
brown, hind coxe black; hind femora fuscous at apex and hind tarsi 
dusky ; belly at base testaceous ; first and second abdominal segments 
laterally, narrowly testaceous. Wings hyaline, stigma fuscous. 
Mesothorax thickly punctulate; scutellum smoother; metathorax 
rather finely rugulose. First segment of the abdomen subquadrate, 
runcate, shining, almost smooth with scattered punctures ; second 
considerably shorter than third, shining, almost smooth, punctulate 
at extreme apex, with two subobsolete punctulate converging lines 
wide apart; other segments smooth and shining. Spurs of the hind 
tibiz as long as half the metatarsus. Terebra short, not surpassing 
the apex of the abdomen. 
Length, 3 mm., expands, 63-7 mm. 
Described from twenty-two females bred from a_ larva 
Drymonia chaonia on July 6th, 1911. The cocoons are pure 
white, spun on a leaf in two flocky heaps, one on either side of 
the host, which was still alive and apparently brooding over the 
cocoons when the imagines emerged. 
During the past twelve years I have reared a considerable 
number of the larve of D. chaonia, but on no other occasion have 
I obtained Braconid parasites. Care must be taken not to 
confuse this species with octonarius, which is smaller and more 
