26 GIGLIOLI, ON PARASITICAL INSECTS FROM CHINA. 
similar to that of Nycteribia. At the back of the dorsal 
part of the head is a large semicircular plate, wider than it; 
its anterior margin is fringed with large truncated spines, 
while the posterior margin has a row of lanceolate spines; in 
the female this plate is rather smaller, and has anteriorly a 
double row of large spines, and posteriorly an incomplete row 
of large hairs. 
The thorax is large, covered with hairs; the prothorax is 
sub-oval, fringed posteriorly by a line of large lanceolate 
spines ; the prothorax in the female is more distinct, and has 
not the posterior line of spines. The metathorax in the male 
is much smaller than the prothorax, and ends in a point; in 
the female it consists of two oval pieces. 
The abdomen is divided into nine segments in both my 
specimens, one of which I take to be a male; it has a 
broader abdomen, with a pointed, bent, copulatory organ on 
the last segment. In the female the last segment has a 
rounded terminal prominence. In both sexes the abdomen 
is covered with hairs. 
The anterior legs are short and strong, terminating in two 
small claws and several spines; their femora are very broad. 
The intermediate and posterior pairs of legs are much longer 
and more slender. ‘Their tarsi terminate in two uncinated 
and sharp claws, with two tubercles at their base in the male, 
and lower down on the tarsi of the female are two more claws. 
I observed no rudiments of wings. 
All the insects described in this paper were collected at 
Amoy. : 
