INSECTS. 
5 l(j 
conical, and terminated in a small point; proboscis with three 
joints, geniculate at the base, projecting and enveloping three 
setie which form the sucker; lower seta much longer than the 
upper one ; without palpi or ocelli. 
Conops macrocephala. — The Long-Headed Conots. 
Plate CL fig-. 10. 
Mouth with a porrected, geniculated, rostrum ; antennas cla- 
vated ; the clava acuminated. Inhabits Europe. 
Genus CESTRUS.— Linnceus. 
Generic Character. — Wings having all the posterior cells ter¬ 
minal; thorax smooth; extremity of the abdomen indexed, 
much elongated and attenuated in the female ; eyes remote. 
CEstrus hovis. — The Ox Gad-Fly. 
Plate Cl. fig. 6. 
Wings brown, immaculate; abdomen with a black band in the 
middle, and dusky yellow hairs at tip ; front white, downy 
thorax yellow in front, black in the middle, and ash-coloured 
behind. Inhabits Europe. 
TRIBE V.-PUPIPARJE. 
Many of them with wings; head and eyes of the ordinary 
size and form; the thorax square. 
Genus HIPPOBOSCA.— Latreille. 
Generic Character. —Body ovate, depressed; head small, 
rounded, horizontal, and attached to the thorax by a neck; an- 
teniite placed near the mouth, each inserted in a cavity; eyes 
large, oval, and placed on the sides of the head ; sucker pro- 
j ecting, filiform; thorax large ; scutellum transverse; wings 
large, horizontal, with strong nerves near their sides ; abdomen 
soft, and not distinctly annular ; feet short. 
Hippobosca equina — The Horse Gad-Fly. 
Plate Cl. fig. 3. 
Wings whitish, with a black band at the middle and two dots 
at the tip; abdomen yellow brown, with black spots at the divi¬ 
sions of the segments. Inhabits Britain. 
