480 INSECTA. • 



These Insects live under the bark of trees, and in a natural order 

 seem to approach the Anthribus of Fabricius, who has confounded 

 them. The body is depressed, the proboscis slightly pointed before, 

 and the tarsi are short. The palpi are thickest at the extremity. 



They form the subgenus 



Rhinosimus, Lat. Oliv. — Curcitllo, Lin. De G. — Anthribus, Fab. 



Designated by Illiger under the denomination of Salpingus. Some 

 entomologists have adopted both, but restrict the latter generally 

 to species in which the club of the antennae is triarticulated, and 

 applying the former, or Rhinosimus, to those in which the club is 

 composed of four or five joints(l). 



FAMILY IV. 

 TRACHELIDES. 



In our second general division and fourth family of Hetero- 

 merous Coleoptera, the head is triangular or cordiform, and 

 borne on a sort of neck or pedicle, abruptly formed, beyond 

 which, being as wide at this- point as the thorax, or wider, ^it 

 cannot enter the cavity of the latter. The body is most com- 

 monly soft, the^ elytra are flexible, without strise, sometimes 

 very short, and a little inclined in Others. The maxillai are 

 never unguiculated. The joints of the tarsi are frequently 

 entire, and the hooks of the last bifid. 



Most of the perfect Insects live on different plants, devour 

 their leaves, or suck the nectar of their flowers. Many, when 

 seized, curve their head and fold up their feet as if they were 

 dead ; the others are very active. 



We will divide this family into six tribes, forming as many 

 genera. 



In the first, or that of the Lagriari^, the body is elon- 

 gated and narrower before ; the thorax either almost cylin- 

 drical or square, or ovoid and truncated ; the antennae, inserted 



(1) See Lat., Gener. Crust, et Insect, II, p. 231; Oliv., Col., and Bncyc. 

 Method.; Dej., Catalogue, &c., p. 77, and Gyll., Insect. Suec, 1, ii, p. 640, and 

 III, p. 715. 



