242 Mr. J. O. Westwood’s Descriptions 
feet are strongly digitated for boring through it or the earth; 
whereas in the little insects before us we find the maxille armed 
with strong horny sete or spines, and the feet, although broad, 
entirely destitute of spines or spurs, presenting in this respect, 
as well as in the bundles of sete at the extremity of the abdomen, 
a singular analogy to some of the species of Paussus. It is there- 
fore quite certain that these insects must differ very materially 
from the Aphodiide in their habits, and, from the formation of the 
maxilla, they might perhaps be considered as more nearly related 
to the Trogide, in several of which we have the maxilla furnished 
with strong horny spines, as in this new genus, but the mandi- 
bles of the Trogid@ are corneous and large, whereas in this new 
genus the mandibles, as well as the labrum and labial palpi, are 
obsolete; at least | have been unable to discover any rudiment of 
them in three specimens which I have dissected, From the setose 
extremity of the elytra the genus may be named 
CHTOPISTHES. 
Corpus oblongum, glabrum, dorso valde sulcato. Caput antice 
deflexum, fronte semicirculari marginato, margine parum re- 
flexo, acumine subangulato, clypeo infra parum convexo, 
cavitate ovali os includente. Labrum obsoletum? Mandi- 
bule membranacee?, obsolete? Mazille corneze, extus 
valde setose, lobo apicali corneo, in unguem acutissimum cur- 
vato, subtus setis rectis corneis armato. /Mentum ovale, basi 
truncatum. Labium et palpi labiales obsoleti? Antenne 
9-articulatee, articulo 2do tribus sequentibus equali; 6to 
intus acute producto, tribus ultimis clavam articulis liberis 
formantibus. Prothorax fere rotundatus, antice truncatus, 
convexus, glaberrimus, medio profunde sulcatus. Metasternum 
subtriangulare. lytra glabra, apicibus setosis, singulo 4- 
sulcato, sulcis equi-distantibus. Pedes lati, compressi; tibie 
nec spinos@ nec serrate, angulis externis apicalibus acutis, 
oblique truncatis. 
Chetopisthes fulvuus, Westw. (Pl. XVII. fig. 6.) 
Totus fulvus, nitidus, capite et prothorace parum castaneis, hoe 
per totam longitudinem ejus sulcato, angulis posticis basi- 
que transverse impresso, impressionibus setulosis. 
Long. corp. lin. 13. 
Habitat in India centrali. D. Boys. 
PI. XVII. fig. 6. Chetopisthes fuluus magnified. 
6a, the underside of the head; 66, maxilla; 6c, mentum; Gd, antenna; 
6e, fore foot; 6f, middle and hind feet; 6g, posterior angle of the 
pronotum. 
