Mr. C. J. Gahan on new Coleoptera. 399 



Thermonotus, n. g. 



5 . Head triangularly concave between the antennal 

 tubercles, the latter prominent and, at their base, approxi- 

 mated. Lower lobes of the eyes small. 



Antenna scarcely reaching to the apex of the elytra, with 

 the scape long and gradually and slightly thickened towards 

 its apex, the latter with a distinct and completely margined 

 cicatrice, the third joint a little shorter than the scape, the 

 fourth distinctly shorter than the third, the fifth and following 

 gradually decreasing in length. 



Prothorax with a strong median spine on each side; the 

 disk somewhat raised across the middle between the lateral 

 spines, the raised portion bounded anteriorly by a very distinct 

 transverse groove and posteriorly by a somewhat irregular 

 ridge. 



Elytra rather short, slightly expanded behind the middle, 

 and broadly rounded at the apex. 



Legs of equal length, the middle tibise without notch or 

 tubercle. 



Prosternal process raised in the middle to a level with the 

 coxse and broadly canaliculate throughout nearly its whole 

 length. Mesosternal process horizontal behind, slightly 

 obtusely produced and vertical in front. 



This genus must be placed near Cereojysms, with which it 

 has many characters in common, but from which it is readily 

 distinguished by the form of its elytra. 



Thermonotus nigriiyes^ n. sp. 



Rufo-testaceus ; antennis, mandibulorum apicibus pedibusque 

 nigris ; scutello dense elytrisque leviter ochraceo squamoso- 

 pubescentibus. 



Long. 16-19 mm., lat. 7-8| mm. 



Hob. J^. Lidia (and Penang?). 



The whole body, including the head, thoi'ax, and elytra, is 

 of a reddish testaceous colour, which is somewhat paler and 

 inclined to flavous on the posterior part of the elytra. Legs, 

 antennae, and ajnces of the mandibles black. Front of the 

 head with a narrow, mesial, raised black line, which 

 extends on to the vertex. The lateral spines of the thorax 

 have a slight backward curvature, their anterior border being 

 convex, their posterior slightly concave. The raised middle 

 portion of the disk has a somewhat uneven surface and is 

 slightly punctured on each side of a median, posterior, feebly 



