GIGLIOLI, ON PARASITICAL INSECTS FROM CHINA. 23 
rounded; trabecule obsolete or fixed. Antenne equal in 
both sexes, or rarely thicker in the males. 
They are found in considerable numbers on all birds. 
Nirmus mandarinus, Giglioli, sp. nov. (Pl. 13, figs. 7 and 8). 
—Body long and narrow; its total length is rather more than 
th of an inch. This species inhabits also the Merula 
mandarina ; another, the N. merulensis, infests the European 
blackbird. This Nirmus is of a whitish colour, edged all 
round with brown. 
Head decidedly triangular, rather large; in front, a small 
space is divided from the rest by a white line; the occipital 
line is nearly straight. Antenne simple, composed of five 
cylindroid joints; trabecule small and inconspicuous; mandi- 
bules rather slender. 
Thorax shorter than the head, and much narrower; dis- 
tinetly divided into a prothorax and metathorax. 
The abdomen is very large; it is at first narrow, then 
- enlarges, and is truncated and broad distally ; it consists of 
eight segments, the last being very slightly cleft; a few hairs 
are scattered on it. 
Legs rather long and thick, even the anterior pair; the 
terminal claws are also long and much curved. 
The three remaining insects I shall describe are Diptera, 
and belong to the Pupipare, insects which live by sucking 
the blood of mammals and birds, on which they are found, by 
means of an apparatus more conformable to that of certain 
Acarina than to the proboscis of other Diptera. 
Two of my species belong to the family of the Coriacee or 
Hippoboscide, one being an Ornithomyia, the other a Stredla. 
Before describing them I must give my best thanks to Pro- 
fessor Westwood, of Oxford, for the kind aid he has given me. 
Genus OrnitHomytA, Latreille. 
Eyes distinct; ocelli usually three in the vertex; wings 
incumbent, full sized ; nerves distinct, extending to the apex ; 
antennee ciliated ; tarsi with tridentate claws. They inhabit 
only birds. 
Ornithomyia Chinensis, Giglioli, sp. nov. (Pl. Is, fig. 10.)— 
This is as yet the only species received from China. Mr, 
Swinhoe found it on the Turdus obscurus. It is, when living, 
ofadark-green colour. The total length of its body is ={,ths 
of an inch. 
The head is rounded, the occipital line being quite straight. 
The antenne are short, sub-ovate, and coyered with thickish 
