I9I4-] ^- H. GravEIvY : An Account of the Oriental Passalidae. 205 



of which it is a httle convex; lateral sutures of frons meeting anterior margin of 

 head in an angle of about 60°, and crest of supra-orbital ridge in an angle of about 

 30°; crest of supra-orbital ridge meeting canthus in an angle of about 30°; external 

 angle" of canthus acute, usually little more than 60°; supra-orbital ridge unpunctured, 

 apical angle about 120°, crest defined by a groove on inner side ; a more or less distinct 

 transverse groove present between supra-orbital ridge and central tubercle. Pronotum 

 without strong punctures except in the marginal groove, which is not interrupted 

 before or behind in the middle-line, and is broader on the inner side of each rounded 

 and slightly prominent anterior angle than elsewhere ; sides parallel ; posterior margin 

 rounded; scars curved (the concave face anterior), slightly oblique, with a single 

 smaller round depression immediately in front of them. Lateral plates of lower side of 

 prothorax with hair-bearing punctures behind, and a few along outer margin in front. 

 Mesothoracic plates punctured throughout with the exception of the posterior angles of 

 the episterna; sternum covered with long hair; the rest of the mesothorax hairless. 

 Metasternum with the central area moderately distinct, this and the posterior inter- 

 mediate areas smooth and hairless; lateral and anterior intermediate areas punctured 

 and more or less hairy; lateral areas much broader behind than in front. Second 

 and third abdominal sterna covered with hair-bearing punctures all over, fourth to 

 sixth at the sides. Anterior margin of front coxae, and posterior part of hind 

 coxae, punctured. Tibiae of middle and hind legs each armed about two-thirds of 

 the way down outer side with one spine. Elytra somewhat punctured and very 

 hairy (in perfect specimens) at the shoulders; all the grooves strongly punctured; 

 the rest smooth. 



2. C. CAvicoRNis, var. borneensis, n. var. 



PI. xi, figs. i-ia. 



Regd. No. ■^-jy'"' Kucbing, Sarawak Sarawak Museum. 



I have examined three specimens of this form. Of these one has been kept 

 in the Indian Museum, one has been returned to Sarawak, and one (the type) has 

 gone to the British Museum. , 



Description. — Length 26-5-28-5 mm. Differs from C. cavicornis, s. str,, only in 

 that the head is smooth as in the following variety and has all its angles more or less 

 produced, while the puncturing of the metasternum is intermediate in extent between 

 that found in C. cavicornis, s. str.. and that found in the following variety. 



3. C. CAVICORNIS, var. 1.AEVICORNIS, Kaup. 



Pl.'xi, figs. 2-2a. 

 Regd. No. ^* Malacca ? 



, »iW 9ao-5 9417-20 , 



1 9J23-S «im 9-132 3 9437-8 f ^ , ( StoHczka bequcst, 



j> < ^^ — -T- — ;— — j — > Johore / 



/ 9^:5 9480 W 1 J. Wood-Mason, etc. 



" -1- ? J. Wood-Mason. 



