DIPTERA. 273 
antennz which are also provided with a stilet; but the third joint 
is shorter, and not abruptly narrowed at the end; if we look at the 
profile of the antennz we observe that the stilet, longer and more 
slender than in the preceding subgenus, and approximating more 
to the form of a seta, is not terminal but inserted on the back near 
the summit. 
O. hypoleons Strat. hypoleon, Fab,; Panz., Faun. Insect. Germ., 
I, 14. Variegated with black and yellow; scutellum yellow, 
and with two spines(1). 
There, the proboscis is long, slender, siphoniform, geniculate at 
base, and lodged in the inferior cavity of a rostrum-like projection 
of the anterior part of the head, bearing the antennz, of which the 
form and proportions are similar to those of the Ephippia. 
NEmoTELvs, Geoff. Fab.(2) 
In the others, the fourth joint of the antenne, together with the 
third, forms an ovoid or globular club terminated by a long seta. 
The scutelum is rarely spinous. 
Curysocutora, Lat.—Sargus, Fab. 
Where the third joint of the antenne is conical and terminated 
by the seta(3). 
Sareus, Fab. 
Where the same joint is almost ovoid, ornearly globular, rounded 
or obtuse at the summit, with the seta inserted on the back, near the 
junction of the fourth(4) ring with the preceding one; the first joint 
is almost cylindrical. 
The scutellum is rarely spinous. The body is frequently elon- 
gated, green or cupreous, and brilliant. 
S. cuprarius; Musca cupraria, L., Reaum., Insect., [V, xxii, 
. 7%, 8 De Geer, Insect., VI, xii, 14. Golden-green; abdomen 
« 
2 
1) Idem. 
) Idem. 
(3) Sargus amethystinus, Fab. 
(4). The Sargi, whatever Meigen may say to the contrary, have the third joint 
divided into four rings. 
Vout. 1V.—2 K 
