ORDER COLEOPTERA. ST/ 



This sub-genus is composed of from five to six species, 

 two of which are of New Holland, and the others of Ame- 

 rica.* 



The first three articulations of the tarsi of the two follow- 

 ing sub-genera, are in the form of a reversed heart, without 

 membranaceous elongations underneath. The fourth is pro- 

 foundly bilobate; the last, but little elongated, presents 

 between its crotchets no projecting and silky appendage. 

 The antennas are filiform, simple, or at most pectinate, and 

 have never above eleven articulations. 



Ptilodactyla, Ilig, Pyrochroa^ De G. 



Are distinguished by their antennae semi-pectinated, or 

 toothed like a saw, in the males. 



This sub-genus is composed of species proper to America. 

 {Ptylodactyla elaterina, Ilig. ; Pyrochroa nitidcii De G. In- 

 sect. V. xiii. 6— 17.) 



Dascillus, Lat. Atopa, Fab. 



Differ only in their antennse being simple in the two sexes. 

 {Atopa cervina, Fab. ejusd. A. Cinerea, var. ; Ptinus testaceo- 

 v'lllosus^ De G. IV. ix, 8; Cistela cervina, Oliv. Col. III. 

 5, 4, 1, 2, a ) 



The other cebrionites have small mandibles, little or not at 

 all projecting beyond the labrum, the body generally soft, 

 almost hemispherical or ovoid, and the palpi terminating in 

 a point. The antennae are simple, or but slightly toothed. 

 In many the hinder feet answer the pvirposes of leaping. 



* Rhipicera marginata, Lat. Cuv. Regn. Anim. III. p. 285, Kirb. Lin. 

 Trans. XII. mas. ; polytomus marginatus, Dalm. Anal. Entom. p. 22 ; ejusd. 

 P.femoratus, ibid. 21; ejusd. P. mystacintis, p. 22; Hispa mystacina, Fab. 

 Drur. Ins. III. viii. 7. I have seen, in the Collection of M. le Comte 

 Dejean, another species, altogether fawn-colour, obtained in America by 

 M. Leconte. 



