3':Zi' CLASS INSECTA. 



Physodactylus, Fisch. 



In which the three intermediate articulations of the tarsi 

 present underneath, a pellet, which is membranous and orbi- 

 cular. The hinder thighs are swelled, and the antennae, at 

 least in one of the sexes, are very short, serrated, and insen- 

 sibly attenuated towards the extremity. 



This sub-genus has been established by the celebrated 

 author of the Entomography of Russia, on a North Ameri- 

 can insect (P. Hen7iingii). (Letter on the Physodactylus, 

 Moscow, 1824, Annales des Science, Dec. 1824, XXVII. B.) 



Cebrio, (Proper.) Oliv. Fab., 



In which all the articulations of the tarsi are entire and 

 without pellets, and the posterior thighs are but little thicker 

 than the others. 



The species proper to Europe appear in great quantities 

 after rain storms. The* female of the species the most 

 known {Gigas, Fab. ; C. longicornis , Oliv. Col. II. 30, bis. 

 I. i. a, b, c ; Taupin, I. I, a, b, c,) differs singularly from 

 the male. Its antennae are but little longer than the head ; 

 the first articulation is much longer than the others. The 

 fourth and the following compose, when united, a small ob- 

 long and almost perfoliated club. The wings are partly 

 rudimental. The feet are shorter, biit proportionally more 

 robust than those of the males. The larva probably lives in 



* Cebrio brevicornis, Oliv. Col. II. 30. bis. I. 2. a. b. c. ; Tenebno dubius, 

 Rossi. Faun. Etrusc. I. I. 2. It appeared to me that this female, in con- 

 sequence of her antennae, ought to form a new genus, which I have 

 named Hammonie. We find at the Cape of Good Hope a species in which 

 the articulations of the antennae throw out, each of them at the base of 

 their internal side, a long and linear branch, and the palpi terminate in 

 an ovoid articulation, and not in the form of a reversed cone, as the 

 other species. This, therefore, might be separated from them. 



