296 
Mr. J. O. Westwood’s Description 
XLIX. Description of a new Genus of Lamellicorn Beetles 
from India, belonging to the Family Rutelide. By J. O. 
Westwoop, F.L.S., &c. 
{Read 3rd August, 1846. } 
Family RUTELIDZ. 
Genus Perrronota, Westw. (P]. XXII. fig. 1, and details, of the 
male ; fig. 2, and details, of the female.) 
Corpus breve, crassum, valde convexum; pedibus brevissimis. 
Caput mediocre, subtriangulare, vertice bituberculato, cly- 
peoque tuberculato, tuberculo unico in @, duobus in g, (fig. 
16, caput $; 2a, 2, supra visum). Labrum porrectum, 
breve, transversum, corneum, anticé in medio subemargina- 
tum, (fig. 1b, ¢, 2b, 2). Mandibule breves, late, cornez, 
angulo externo antico in tuberculo obtuso producto (ore 
clauso, clypeo et labro haud obtecto); angulo interno qua- 
drato, spatio subtus tenue setigero; portione molari lata 
tenuissime transverse strigosa, (fig. 1c, 1d, le, mandibule 
maris, supra, externe et interne visee). Mazille cornee, lobo 
externo producto, 6-dentato ; dentibus sic (ex apice) dispo- 
sitis 1, 2, 3; palpi maxillares breves, 4-articulatz, articulo 
2ndo 3tio duplo longiori, ultimo majori subovali, (fig. 1f 
and 2c). Mentum crateriforme, valde setosum, apice paullo 
dilatato, margine antico in medio emarginato ; palpi labiales 
breves, 3-articulati, articulo intermedio minor), (fig. 1g, 2d). 
Antenne breves, 10-articulata, sexu conformes, clava 3- 
phylla parva, (fig. 1b, 2a). Pronotum fere semicirculare, 
valde gibbosum, nitidissimum, punctatum, medio marginis 
postici in mare, in cornu tenui supra scutellum et basin 
suture extenso productum, cujus apex deflexus in impres- 
sionem suture receptus (fig. 1a, corpus ¢ e latere visum) ; 
canali tenui longitudinali per medium pronoti maris extenso; 
foeminze simplex inerme; margine postico in medio rotun- 
dato, utrinque subsinuato. Scutellum latum, fere semicircu- 
lare. Elytra brevia, convexa; maris opaca nisi spatio nitido 
semicirculari depresso prope scutellum; foeminze minus opaca, 
punctata, singulo versus apicem tuberculo elevato instructo ; 
marginibus lateralibus integris, apicibus anum haud tegenti- 
bus. Podex deflexus. Pro- et meso-sterna omnino mutica 
