CERATODERUS. 



455 



last two much shorter, narrower and gradually tapering ; labial 

 palpi 3-jointed, subclavate, with the last joint considerably the 

 largest ; proootum very slightly broader than the head, elon- 

 gate, much narrowed behind, with a strong transverse furrow 

 behind the middle and a much feebler longitudinal furrow : elytra 

 rather long ; pygidium uncovered ; legs rather robust, compressed,, 

 tarsi somewhat elongate, the last joint considerably longer than 

 the others. 



Range. This genus comprises three species, all of which belong 

 to the Indian region. 



Key to the Species. 



I. Head black ; external outline of club of 



antennae even. 



1. Club of antennae longer and narrower, 



and more narrowed towards base, 



with the apex black or fuscous .... bifasciatus, Koll., p. 455. 



2. Club of antenna3 shorter and broader, 



and less narrowed towards base, 



unicolorous oberthuri, Gestro, p. 456. 



II. Head ferruginous or reddish casta- 



neous ; external outline of club uneven, andrncesi, Desneux, p. 45Cv 



221. Ceratoderus bifasciatus, Koll. 



Paussus bifasciatus, Kollar, Ann. Hofmus. Wien, i, 1836, pi. 31, 

 fig. 7 ; \Vestwood, Trans. Ent. Soc. Lond. ii, 1839, p. 91, pi. 10, 

 fig. 3. 



Ceratoderus bifasciatus, Westwood, Arcan. Ent. ii, 1845, p. 37, 

 pi. 58, fig. 1 ; Rattray, Nouv. Arch. Mus. Paris, (2) viii, 1885, 

 pi. 15, fig. 6, k pi. 17, figs. 22-24; Wasmaim, Deutsche Ent. 

 Zeitschr. 1895, p. 44. 



A small, rather narrow, elegant species, very shiny, yellow or 

 reddish yellow, with the apex of the antennae 

 fuscous, and with the head, a broad band 

 stretching right across the elytra from near 

 the apex to beyond the middle, and the legs, 

 for the most part, black ; head channelled 

 and punctured in front and more or less dis- 

 tinctly impressed on the vertex; pronotum 

 long, cordiform, plainly longer than broad, 

 constricted and sulcate behind the middle, 

 smooth and shining ; elytra broader than 

 the anterior part of the pronotum, with 

 Fig. 206.— Ceratoderus tne shoulders rounded, truncate at the 

 bifasciatus. apex, the disc scarcely visibly sculptured ; 



legs black or pitchy-red, with the tarsi 

 reddish ; underside red or yellow. 

 Length 5-5| millim. 



Srxn : near Mehidpur ; Bengal : Dacca ; Madras : Nilgiri 

 Hills. 



