466 INSECTA. 



a shield, and antennae terminated by a club composed of four or five 

 joints; they are peculiar to the eastern continent and to New Hol- 

 land. Such are those which form the 



Cossyphus, Oliv. Fab. 



Or Cossyphus properly so called, where the almost semicircular 

 thorax presents no anterior emargination, and entirely conceals the 

 head; where the antennae are short, and terminate abruptly in an oval 

 mass of four joints, most of which are transversal; the second of the 

 whole number and the following ones are almost identical. 



These Insects inhabit the East Indies, southern part of Europe, 

 and north of Africa(l). In 



HeljEus, Lat. Kirb. 



The head is received into a deep emargination or median aperture 

 of the thorax, and is exposed at least superiorly. The antennae, at 

 least as long as these two parts of the body taken together, termi- 

 nate almost gradually in a narrow, elongated club, formed by the 

 last five joints, the last of which is ovoid, and the preceding ones 

 turbiniformj the second of the whole number is shorter than the 

 third. They are peculiar to New Holland(2). 



The others, where the head is always exposed and simply received 

 into a deep notch in the thorax, have a convex, soft or but slightly 

 solid, almost hemispherical body, and granose antennae, nearly equal 

 throughout. They are peculiar to South America, and at a first 

 glance resemble Coccinellae and various species of Erytoli. Such 

 are those which form the 



Nilio, Lat.(3) 



FAMILY III. 



STENELYTRA. 

 The third family of heteromerous Coleoptera only differs 



(1) Lat., Gener. Crust, et Insect., II, p. 4. 



(2) Cuv. Reg-n. Anim., Ill, p. 301, IV, xiii, 6; Hebeus Broivnii, Kirb., Lin. 

 Trans., XII, xxiii, 8. 



(3) Lat., Gener. Crust, et Insect., II, p. 198, and I, x, 2; JEgithus marginatus, 

 Fab. See Germ., Insect. Spec. Nov., p. 162. 



The genera Eustrbphus and Orchesia which we formerly placed in this family 

 now belong- to the next: 



