618 Mr. J. O. Westwood on the Paussidce, 
pld longiori apice paulld crassiori, 3tioque magno, clavato, 
apice obliqub subtruncato. Thorax' subquadratus et sub- 
cylindricus, antice latior, abdomine angustior. Scutellum 
parvum, trigonum, pedunculo abdominis immersum. Meso- 
stethium magnum, transversum, medio linea longitudinali 
etiam lineal transversal, margine postico parallels, impres- 
sum. Elytra elongato-quadrata, laevia, dorso plana, ad 
latera deflexa, immarginata, postich truncata. Alee duae. 
Coxa: posticae, transversae, apice majores. Abdomen in spe- 
cimine viso mutilatum. Pedes omnes similes, breves, valdb 
compressi, lati. Tibiae omnes spina minutissima terminali 
interne instructae. Tarsi breves, subcylindrici, articulis 5 
integris, articulo lmo brevissimo, tribus proximis brevibus 
aequalibus subths paullb villosis, articulo ultimo longitudine 
quatuor praecedentium, cylindrico, apice paullb crassiori, 
unguibus duobus validiusculis, acutis, simplicibus. 
The characters of this genus are perhaps as interesting as 
any hitherto presented to the entomologist. The various parts 
of the mouth, especially the development of the palpi and their 
basal scapes, and the internal labium, are worthy of notice, as 
is also the insertion and structure of the antennae. Between 
the upper part of the eyes there are two slightly raised tuber- 
cles, the centres of which appear excavated for the reception of 
a circular ball, probably capable of a rotatory motion, upon the 
upper or exposed surface of which the lower part of the basal 
joint of the antenna 1 is inserted. In general appearance and in 
the formation of the thorax, this genus resembles the first section 
of Paussus ; whilst the formation of the antennae would lead 
towards Ceraplerus . There are four joints more in its antennae 
than in Paussus; while Cerapterus exceeds it by four joints 
more. In the incrassation of the labial palpi it approaches 
Cerapterus ; 
