10 
COLEOPTERA. 
Donovan, in order to admit this species into the genus Paussus, was induced to 
adopt the Linnsean generic character, with the omission of the term “ clava solida,” 
although, according to the characters laid down by Afzelius, it ought not to be admitted 
into the genus, since he states that the tarsi are only three-jointed, whereas in the other 
species they are five-jointed. They are however four-jointed, but in consequence of 
the more important variation in the structure of the mouth, which Donovan neglected 
to examine, I considered it requisite to establish this species as a distinct genus. 
PAUSSUS THORACICUS. 
Plate V. fig. 2. 
Genus. Paussus, Linnceus. Pausus, Donovan. 
Species. Paussus Thoracicus: ferrugineo-testaceus ; elytris disco lateribusque fuscis: 
antennarum clava oblonga compressa trigona; latere interno acuto, externo 
excavato; cavitate ovali marginibus denticulatis. Long. Corp. lin. 3^. 
Paussus : pale reddish ; the elytra having the disc and sides brown; the club of the 
antennae oblong, compressed, and triangular ; the inner margin acute, the exterior 
excavated, with an oval cavity, the margins being denticulated. Length 3^ lines. 
Syn. Paussus thoracicus, Westwood in Trans . Linn. Soc. vol. XVI. p. 640, pi. 33, f. 28 — 30. 
Pausus thoracicus, Donovan Ins. Ind. ls£ edit. 
Paussus trigonicornis, Latr. Gen. Cr. fyc. 3. p. 3, pi. 11, f. 8. Sch. Syn. Ins. 1. p. 3, 
pi. 9. 
Habitat. Bengal. 
The thorax in this insect is so deeply divided across the middle, that it appears, at 
first sight, as if it were really two, whence the specific name thoracicus. The same 
character also exists in P. Fichtelii, which Donovan considered might possibly be the 
other sex of P. thoracicus ; the most striking difference prevailing in the structure of 
the antennae, the excavation in one of which is of an oval, or rather shuttle shape, and 
in the other pyriform. In my monograph I have pointed out other characters, which 
have induced me to consider the two species as entirely distinct. 
