160 Mr. J. O. Westwood on the 
SirpHopes, Westw. 
(Plate XI. fig. 2 and details.) 
Corpus ovatum, subconvexum, marginibus reflexis et setosis. 
Caput subtrigonum, margine laterali parum reflexo et ante 
oculos longé setoso. Clypeus fere recté truncatus. Labrum 
porrectum, breve transversum, angulis anticis rotundatis, 
margineque antico in medio emarginato. Mandibule robust 
corneee, exsertz, margine externo valde rotundato et setoso, 
apice in dentem declivem producto, denteque altero minuto 
interno; margine interno setuloso. Maaille basi cornee, 
extus setoso ; lobo apicali magno membranaceo setoso, interno 
minuto ciliato, ciliis duabus crassioribus apicalibus. Palpi 
maxillares 4-articulati; articulo lmo minuto, reliquis tribus 
longioribus, ultimo longo, parum curvato. Mentum fere 
rotundatum, longé setosum, margine antico emarginato. 
Labium Jaciniis duabus tenuibus productis. Palpi labiales 
breves, 3-articulati. Antenne 10-articulate, clava 3-articu~ 
latee ; articulis infundibuliformibus, 1mo majori alteros duos 
recipiente. Prothorax transversus, postice latior, anticé emar- 
ginatus, angulis posticis rotundatis, margine postico parum 
producto; lateribus reflexo-marginatis. Scutellum triangulare. 
Elytra ovalia, abdomen omnino tegentia, convexa, margine 
reflexo et ciliato. Pedes longitudine mediocres, tarsis posticis 
longioribus. Zbie 2 anticze extus obtusé serrate, dentibus 
tribus majoribus ad apicem et calcari unico armate. Trbie 
4 posticee angustiores, setis longissimis triplici serie positis. 
Tarsi 5-articulati; antici breves, articulo ultimo subtus 
spinulis armati. Ungues pedum anticorum dissimiles, majori 
intus ad basin spina brevi alteraque versus medium armato ; 
minori fere recto, basi tamen valde curvato. Ungues pedum 
4 posticorum fere similes, fere recti, ad basin tamen curvati. 
The porrected labrum and mandibles, membranous lobes of the 
maxillz and infundibuliform joints of the club of the antenne, 
lead me to infer that this insect is much more neatly allied to the 
Geotrupide than to the Trogide, from which these characters 
especially remove it.* Its immediate relationship is Hybosorus, 
from which it is distinguished by the form of the mandibles, and 
* A specimen of this genus, in the Cabinet of the Zoological Society, has a 
label attached to it in the handwriting of Mr. MacLeay, inscribed ‘‘ Trogide, 
G. N.” Had Mr, MacLeay however had an opportunity of examining the trophi 
of the genus, I am convinced he would have referred it to Geotrupide. 
