667 
a Family of Coleopterous Insects . 
Blackheath. The genus, however, remained unnoticed until 
Donovan described a second species in his Natural History of 
the Insects of New Holland, and also recorded the existence of 
a third, which had been consigned by Fichtel to the Imperial 
Cabinet at Vienna. The generic characters were not detailed 
by Donovan, with the exception of those drawn from the an- 
tennae. Latreille in his Genera Crustaceorum, tyc., evidently 
guided by Donovan’s work, and unacquainted with the original 
description of Swederus, gave the genus with characters drawn 
merely from the antennae, and with Donovan’s species as the 
type : and it is through this slight description alone that the 
French entomologists appear to be acquainted with the genus, 
since in the Encyclopedic Mclhodique the genus Cerapterus was 
entirely omitted in the Letter C. ; and the only notice of it in the 
later volume of that work, under the article raussus, omits all 
mention of the original species. It is with pleasure that I now 
give the characters of the genus in detail, which I have drawn 
from the generic and specific description of Cer. latipes given 
by Swederus, from the characters exhibited by Donovan’s figure 
of Cer. MacLeaii, and from an examination of the insect con- 
tained in the cabinet of the East India House subsequently 
mentioned. This examination, although merely external, has 
enabled me to state the formation of the terminal joints of the 
palpi, and thus to exhibit their resemblance in general forma- 
tion with the Paussi, thereby also proving that the disagreement 
appearing in the figures of these organs given by Swederus 
(tab. 6. f. 2, 3 Sc 4.) is produced by the incorrectness of the 
delineation of the maxillary palpi in the two former figures. 
In the latter figure (to which the detailed generic description 
of these organs alone refers) they are, however, correctly repre- 
sented, although we find that description, which is as follows, to 
be incorrect: “Osmaxillis palpisque. Palpi quatuor inasquales, 
ultimo 
