NEW EXOTIC COLEOPTEEA. 65 



This species differs from C. sumatranus in the dull black colour, 

 the convex head with a more deeply notched clypeus, the hind 

 part without the transverse ridge or central tubercle, different 

 form of the elytra, with the costse almost obsolete, smooth and 

 marked with a few fine round punctures, the interstices being 

 filled in with aciculated punctures, which form more or less dis- 

 tinct longitudinal lines being posteriorly united together. The 

 maxillae have the inner lobe forming an obtuse tooth; the apical 

 lobe is formed of two teeth, the outer one short and obtuse, the 

 inner one longer and more acute. The mentum is oblong-quadrate, 

 the sides slightly emarginate and impressed for the labial palpi, 

 the anterior margin with a deep semicircular impression. The pos- 

 terior angles of the pronotum are very small but distinct; the 

 middle of the hind margin slightly depressed; the compressed spine 

 of the prosternum is fringed with erect hairs. The sides of the 

 metasternum and of the basal segment of the abdomen are clothed 

 with fine white sericeous pile. The terminal segment of the abdomen 

 and the podex are more closely punctured. The mesosternum is but 

 very slightly produced between the base of the intermediate pair 

 of legs. 



I have seen but a single individual of each of the two species 

 of Cœnochilus above described, and at first sight I was inclined 

 to think they were the opposite sexes of the same species , but 

 their relative characters seem scarcely to warrant such an opinion. 



Cœnochilus Parrianus n. sp. PI. 3. fig. 4. 



Niger parum castaneus, convexus, nitidissimus; capite antice 

 convexo, margine antico parum emarginato, lateribus ante antennas 

 panilo dilatatis, disco subtiUter punctato, utrinque ad basin anten- 

 narum tuberculo parvo elevato, carinaque transversa inter oculos 

 instructo ; pronoto transverse-rotundato , angulis posticis rotundatis , 

 marginibus lateralibus et postico tenuissime reflexis, disco valde 

 convexo , punctatissimo ; sulco tenui e medio ad scutellum ducto ; 

 elytris glaberrimis, convexis, lateribus sensini e basi ad angulos 

 posticos angustatis, singulo striolis duabus gracilibus prope suturam 



