24 GIGLIOLI, ON PARASITICAL INSECTS FROM CHINA. 
hairs. Ocelli not very distinct; eyes large, occupying the 
whole of the sides of the head; facets pretty equal in size. 
The buccal apparatus is distinct; the clypeus of the fore part 
of the head very conspicuous. 
Thorax quite round, with a few hairs scattered over it. 
Abdomen also globular, thickly covered with short hairs; 
in one of my specimens it terminates in three rounded 
prominences, the middle one being double and covered with 
very thick bristles. The abdominal and thoracic spiracles are 
very distinct. 
Legs thinly clad with hairs, of moderate length, very 
strong, and the tarsi are six-jointed, the fifth jomt being the 
largest ; the sixth supports two very large acuminated and 
sharp claws, bent on themselves; the foot-cushions are whitish, 
and of moderate size. 
Wings about .*,ths of an inch in length; ribs very distinct, 
the first one fringed with a row of short, thick hairs. 
Genus Srresia, Wiedemann. 
. Eyes small, triangular. Ocelli? Wings incumbent, 
rotundate, longer than the abdomen, with parallel veins. 
These small flies, of which only two or three species are known, 
infest only and live exclusively on bats. 
Strebla molossa, Giglioli, sp.nov. (fig. 12).—This interesting 
species is found on the Chinese Molossus, together with the 
following. 
Head rounded, covered with hairs, and placed far between 
the anterior legs. Antenne short and broad, covered with hairs. 
A sub-ovate clypeus is very distinctly marked off from the rest 
of the head. Eyes rudimentary; I could find no ocelli. 
Thorax oval and elongated, covered with short hairs; it has 
a median groove on the ventral side. 
The abdomen is elongated, covered with long, thick hairs ; 
in one specimen, very likely a male, towards its extremity were 
two long blade-like organs, doubtless subserving copulatory 
purposes ; in the other specimen the abdomen terminates in 
a median rounded prominence. 
Legs of moderate length, the posterior pair the longest; 
they are very hairy, and the joints broad and flattened. 
The tarsi end in two very sharp, uncinated claws ; the foot- 
cushions are large, and covered with long, thin hairs ; the last 
joint of the tarsi, which supports the claws, widens consider- 
ably distally. 
Wings ample, long, and broad, fringed all round with short 
