504 



Mr. C. O. Waterhouse on neio Species of 



behind the eye is more directed backwards than in the specimen 

 just received. The other three species appear to be un- 

 described. 



The accompanying camera-sketches will assist in the 

 determination of these three species and P. Giinthen, Gahan. 



Prionocalus Simonst. 



Prionocalus Whitei. 



Prionocalus Simonsi, sp. n. 



Niger, supra rugosus, sat nitidus ; elytris apicem versus angustatis, 

 elongato-triaiigularibus, basi vermiculoso-rugulosis, apice piceo- 

 tinctis, subtilius rugosis, minus nitidis ; antennis (basi excepta) 

 tibiisque piceis, tarsis rufo-piceis. J . 



Long. 38-47 mm. 



Bab. Ecuador, in wood west of CuenQa, 2600 m., May 

 1899 (P. 0. Simons). 



This species closely resembles P. atys, White, in form, 

 colour, and sculpture, but is at once distinguished by the 

 posterior angles of the thorax being slightly rounded instead 

 of acute and slightly projecting, as they are in P. atys. The 

 head is coarsely and closely rugose, with a short, not very 

 acute, conical tubercle behind the eye. The mandibles are 

 shorter than the head. The thorax is less rugose than the 

 head, and the space on each side of the disk, although rather 

 closely punctured, is smoother. The elytra are one-third 



