92 



Hydaticus *. 



Others have the body ovoid, short, strongly inflated above, with 

 the circumference of the abdomen clasped by the elytra. The thighs 

 are canaliculate, and receive the tibis; in their sulcus. Their eyes are 

 large. The antennae always consist of twelve joints. 



Orobitis f . 



Others, with an oblong, convex body, and the anterior legs usually 

 longer, particularly in the males, with antennae consisting of twelve 

 joints, the eyes remote, and elytra covering the abdomen, will form 

 the subgenus 



Cryptorhynchus X. 



Those which are apterous, or where the wings are at least very 

 imperfect, and the scutellum is wanting, will form another, or 



Tylode. — Ulosomus. — Seleropterus? Schcenh. 



M. Chevrolat has discovered one species — Rhyncha;nus ptinoides , 

 Gyll. — in the vicinity of Paris. 



The remaining Longirostres have generally nine joints at most in 

 the antennte, and the last, or two last at most, form a club with a 

 coriaceous epidermis and spongy extremity. They feed, at least 

 while in the state of larvae, on seeds or ligneous substances. 



They may be united in the single genus 



Calandra, 



Which may be divided into six subgenera. 



The two first are apterous, and present, as well as the preceding 

 and following ones, the last excepted, four joints in all the tarsi, and 

 of which the penultimate is bilobate. The antennae are geniculate 

 and inserted at but a little distance from the middle of the proboscis. 



In the first or 



Anchonus, Schoinh.y 



These organs present nine joints before the club. The tenth, and 

 perhaps two others, but intimately united with the preceding one, 

 and but little distinct, form a short ovoid club. 

 In the second 



* Add his Amalus. 



•f The Orohllis, Diorymerus, Ocladius, Cleogonus, of Schoenherr. 



X The geuera Arthostenms, Pinarus, Crafosomus, Macromerus, Cryptorhynclms 

 of Schoenherr. The Gasterocerus of Messrs. Brull^ and Lapoite appears to me to 

 belong to the Cratosomiis proper of Schoenherr, or those in which the proboscis is 

 straight and flattened. His subgenus Gorgus is composed of large species, all from 

 South America, and in the males of which the probiscis is usually armed with two 

 teeth or horns near the insertion of the antennae. I could not find any dentation in 

 the mandibles, one of the characters which distinguish the Cratosomi from the 

 Cryptorhynchi, where these organs are dentated. 



