372 INSECTA. 
of those which occupy the middle of their length—is closed before 
the posterior edge. The proboscis is very thick, and the body is 
depressed. 
These Diptera are almost always found in the vicinity of dung- 
hills, which is most probably the abode of their larve*. 
Sometimes the posterior legs scarcely differ from the others. 
The antennz of several are almost as long as the face of the head, 
and their seta is frequently pilose. The sides of the face are occa- 
sionally glabrous. 
In some, the antenne are almost as long as the face, inclined, 
generally approximated, and terminated by a narrow and elongated 
palette, with the seta always pilose. The abdomen, at least that of 
the male, is elongated, almost cylindrical, terminated by a club in 
some, and a stilet in others. 
In these, the sides of the face are furnished with hairs or musta- 
chios. 
Here, the abdomen presents externally but four segments. The 
seta of the antenne is simple. 
Diatyta, Meig.t 
There, it offers five rings at least. 
Corpyuura, Fall., Meig.—Ocyrrera, Fab., 
Where the wings extend but little, or not at all, beyond the ab- 
domen, which terminates in a club in the malesf. 
ScaropnaGa, Lat., Meig.—Musca, Lin., Fab., 
Where the wings are much longer, and the abdomen is not inflated 
at the posterior extremity in either sex. 
S. stercoraria; Musca stercoraria, L.; Reaum., Insect., 1V. 
xxviii. Densely pilose and of a greyish-yellow ; front russet ; a 
brown point on the wings; seta of the palette bearded. Very 
common on fecal matters, those of man particularly, where the 
female deposits her eggs, which are retained on the surface by 
two appendages resembling little wings §. 
These are destitute of mustachios. 
The body is always long, narrow, cylindrical, and linear. 
Loxocgra, Lat., Fab., Meigq., 
Where the antenne are much longer than the head. ‘The Loxocerze 
resemble little Ichneumons||. 
Cuyuiza, Fall., Meigq., 
Where they are rather shorter than the head, with the seta thick, 
and in the form of a stilet. 
The antenne of the others are always much shorter than the head, 
* Lat., Ibid., 1V, 359; Wied., Anal. Entom., under the name of Copromyza. 
+ See Meigen. 
t Idem. 
Meig., and Lat., Gener., Crust. et Insect., TVs 358. 
|| Lat., Fab., Meigen. 
q Meigen. 
