DIPTERA. 363 
tinguish those whose epistoma does not project in the manner of a 
rostrum, and the sides of whose head are not prolonged in the form 
of horns. 
In some, the seta of the antenne is simple or without any very 
apparent hairs. 
In one single subgenus, 
Ecurnomyia, Dum.—Tacuina, Fab., Meig., 
The second joint of the antennz is the longest of all. The last or 
the palette is widest, compressed, almost in the form of a reversed 
triangle or trapezoidal. The seta is biarticulated inferiorly. 
E. grossa; Musea grossa, L.; De Geer, Insect., VI, I, 12. 
The largest species known, and almost of the size of a Bombus: 
black, bristled with thick hairs; head yellow; eyes brown; 
origin of the wings russet. It hums loudly while on the wing, 
alights on flowers, in the woods, and fr equently on cow-dung. 
The larva lives in the latter substance; its body is yellowish, 
glossy and conical, furnished with a single hook and two small 
fleshy horns at its anterior extremity or the point; the opposite 
end is terminated by a circular plane on which are two stigmata, 
each formed of a lenticular and brown plate raised in the middle. 
The second annulus of the body, the head counted as one, also 
presents a stigma on each side. The posterior extremity of the 
cocoon of the pupa, which is also conical, presents two more 
distinct stigmata; its contour is formed by a nine-sided lamina. 
See Reaum., Insect., FV, xii, 11, 12; and XX VI, 6—10*. 
In the other Creophile, the third joint of the antennz is longer 
than the preceding one, or at least is never shorter. 
Sometimes the anterior face of the head is almost smooth, or pre- 
sents but very short hairs, arranged as usual in two longitudinal 
rows, none of which are much larger than the others. 
Here the abdomen is always convex, with very distinct, and more 
or less triangular annuli. 
In these, the seta of the antennz, of which the second joint is much 
elongated, is geniculate, and forms an angle near its middle, at the 
junction of that joint with the following one, or the last division of 
the seta. 
- 
Gowns, Meig}. 
In those, as in the other Creophile, the seta of the antenne is not 
geniculate near its middle. 
Mitrocramma, Meiq., 
Where the third joint of the antenne is much longer than the pre~ 
ceding one f. . 
- 
* Division A of the genus Tachina, Meig. The species called ferow has its palpi 
dilated in the form of a spatula, and constitutes the genus Fabricia of M. Robineau. 
The Stomoxys bombilans, Fab., has the facies of the Echinomyiz, and the proboscis of 
the Bucentes. 
+ Meigen. 
t Idem. 
BB 2 
