-28 Indian Museum Notes. [Vol. VI» 



rare for the last to be indented or foveolate. The intercoxal projec- 

 tion of the basal segment is widened into a flat facette on the 

 whole length of its ventral ridge except in Bostrichus capucinus L. 

 where this projection appears as a simple pinching of the sternal 

 plate. 



Mr. Lesne notes that these characters are perhaps more superficial 

 than well marked and the genera based on them are therefore very 

 close to one another. They are, however, based not only on the 



-relations of those genera to themselves but also to neighbouring 

 groups. 



The group Bostrichus is divided into eleven genera, Bostrichus^ 

 Schistoceros, Parabostrichus, Neoterius i Bostrichoplites, Dex- 

 icrates, Lichenophanes, Heterobostrichus, Bostrichopsis, Bostri- 



>4hulus and Sinoxylodes, of which representatives of only the genera 

 Schistoceros, Lichenophanes, Heterobostrichus and Bostrichopsis 

 appear to have as yet been reported from India. The following are 



•Lesne's characters of these four genera :— 



TABLEAU DES GENRES. 



2-1 — Saillie intercoxale du i er segment apparent de l l abdomen 

 presentant une facette plane ventrale dont les aretes 

 marginales se continuent sans interruption avec les cari* 

 nules limitantes des cavites coxales. 

 43-4— Articles de la massue antennaire parcourus sur chaque face 

 par deux fins canalicules longitudinaux. Angles anterieur 

 de Pepistome pointus, plus ou moins aigus 



G. Schistoceros. 

 4-3— Articles de la massue antennaire sans canalicules longitu- 

 dinaux sur leur deux faces. 

 8-5— Meso et metasternum en contact au bord externe de la 

 hanche interm£diaire. Prothorax sans range"e marginale 

 de dents le long de son bord anterieur. 

 10-9— Tete sans constriction postoculaire. Cadre buccal mois 

 dente au-dessous des yeux. 

 11-14— Angles anteVieurs de Pepistome obtus ou arrondis. Articles 

 de la massue antennaire avec des taches pileuses net* 

 tement delimitees. Pronotum gen^ralement un peu excave" 

 audessus de son bord anterieur. 

 *I3"I2— fspisternites abdominaux non apparents. Nervure dorsale 

 interne des e'lytres renfl6e et saillante pre's de la base . 



G. Lichenophanes, 

 5*4-1 1 —Angles anteneurs de l'e'pistome droits ou aigus, pointus. 



