Coleoptera from Costa Rica, 117 



acutis postice sinuatis ; elytris fortiter puuctato-striatis, punctis 

 approximatis. ( 3 ) Cornu capitis erecto, vix recurve- ; thorace 

 quadridentato, dentibus mediis sulco usque ad basin prolougato 

 et dense fortiterque punctate- separatis ; foveolis lateralibus et 

 depressionibus inter dentes medios lateralesque fortiter denseque 

 punctatis. ( $ ) Tuberculo frontali brevi, apice leviter emarginato ; 

 thorace antice dense punctate 

 Long. 14-15 mm. 



Hah. Costa Rica, San Francisco de Guadalupe, alt. 

 1200 m. (H. Pittier). 



In having an acute, subdentate, antero-lateral angle to the 

 prothorax, followed by a slight sinuation or obliquity of the 

 margin, this species resembles G Sallei, Har., and C. Re- 

 houchei, Har. ; from both it is distinguished by the more 

 thickly and distinctly punctured mid-dorsal furrow of the 

 prothorax, and by having the sides of the prothorax, from 

 the lateral fovea up to the anterior margin, and the broad 

 channels between the median and lateral teeth also thickly 

 and strongly punctured in the male. 



Bates has, in the ' Biologia Centrali-Americana,' recorded 

 only two species of Copris from as far south as Costa Rica. 

 These two — G. incertus, Say, and C. armatus, Har. — range 

 northwards to Mexico. On examining the examples which 

 Bates has placed together in the latter species, I have noticed 

 that there is a rather marked difference in the punctuation of 

 the male prothorax. In the Mexican examples the anterior 

 part of the prothorax is distinctly punctured, with the punc- 

 tures rather closely placed, but with evident intervals between , 

 them ; in the other examples the surface of the front part of 

 the prothorax is just as distinctly asperate. In the examples 

 from Costa Rica there is a further difference, in that the 

 elytra are much more feebly punctured along the striee. It 

 is possible, however, that with much larger series these 

 differences would become less apparent. 



Cerambycidae. 



Holonotus sternalis, sp. n. 



Niger ; elytris brunnesceuti-testaceis, postice piceis ; pronoto medio 

 valde denseque punctato, versus latera crebrius rugoso-punctato ; 

 elytris dense fortiterque punctatis ; mesosterno grosse tuberculato, 

 ad apicem lateraliter compresso et cariniformi ; antennis brevibus, 

 prothoracis basin paullo superantibus. 



$ . Long. 25, lat. 9| mm. 



Hah. Costa Rica, Cerro de la Vol tea (H. Pittier). 

 Black, with the elytra almost entirely of a reddish-brown 



