360 INSECTA. 
third, which, either alone, or most commonly conjointly with it, 
forms a fusiform, or ovoid and compressed club. 
Here, the proboscis projects and is only geniculate near it origin. 
' Sometimes the antenne are much longer than the head, and ter- 
minated in a fusiform club. The wings are distant. 
Systrropus, Wied.—CEPHENEs, Lat., 
Where the last joint of the antenne alone forms the club, and is 
destitute of a stilet. The abdomen is long and slender. These In- 
sects, peculiar to North America, resemble little Spheges. Their an- 
tenn are longer in proportion than those of Conops, and their pro- 
boscis slightly ascends *. 
Conors, Fab., Lat., Meiq., 
Or Conops, properly so called, where the two last joints of the an- 
tennz formed a club, with a terminal stilet. 
C. macrocephala. Fab. Black, antenne and legs fulvous ; 
head yellow, with a black streak; four annuli of the abdomen 
margined with yellow ; edge of the wings black. 
C. rufipes, Fab. Black; abdominal annuli edged with white ; 
base of the abdomen and legs, fulvous; edge of the wings black. 
It undergoes its metamorphosis in the abdomen of living 
Bombi, and issues from between the rings of the abdomen. A 
footless larva found in the B. lapidaria—Apis lapidaria, L.— 
and perhaps that of this species of Conops, has furnished the . 
late M. Lachat and M. Audouin with a subject for some excel- 
lent anatomical observations f. 
Sometimes the antennz are shorter than the head, and terminate 
in an ovoid club. The wings are crossed on the body. 
Zovion, Lat., Meig. t 
There, the proboscis is geniculate near the base, and again about 
the middle, with its extremity bent underneath. The antenne are 
shorter than the head, and terminate in a palette with a stilet. 
Myopa, Fab., 
To which belongs the 
M. ferruginea, Fab. Russet, with a yellow front and black- 
ish wings §. 
The others, Stomoxyde, Meig., in their general form, disposition 
of their wings, their palette-terminated antenne shorter than the 
head and accompanied by aseta, and in their triangular or conical 
abdomen without external appendages, resemble common Flies. 
TT) 
*® Wiedemann, Dipt. Exot., I, vii. 
See Fab., Lat., Meig., &c., and the first volume of the Mém. de la Soc. d’Hist. 
Nat. de Par., &c. 
t Lat., Gener. Crust. et Insect., IV, 336; Meig. Dipt. xxxvii, 1, 7. 
§ See Fab., Lat., Meig., Fall., &c. 
