Prionocalus/rom Ecuador and Peru. 505 



longer than broad, much narrowed towards the apex, verrai- 

 culate-rugose at the base, the sides and apex (which are 

 impressed) with much finer rugose sculpture ; the apex of 

 each elytron is rounded. The femora are more or less pitchy, 

 the tibige almost entirely so, the tarsi ratlier paler. 



Prionocalus Whitei, sp. n. 



Aiithracinus, nitidus, supra rugosus ; capite post oculos tuberculo 

 magno, conico, obtuso armato ; mandibulis falcatis ; antennis 

 corpore paulo longioribus ; thoracis lateribus dentibus tribiis 

 acutis iustructis, angulis posticis acutis porrectis ; elytris ovalibus, 

 postice arcuatim angustatis, apicibus singulatim rotundatis ; 

 palpis, tibiis tarsisque rufo-piceis. J , 



Long. 50 mra. 



TIah. Ecuador, Porvenir, March 1899 (P. 0. Simons). 



This species has the jet-black colour of P. Buckhyi and 

 P. i'pht's, but differs from both these in having the elytra 

 separately rounded at the apex, as in P. cacicus &c. It 

 differs from P. cacicus, atys, Simonsi, and Guntheri in 

 having the sculpture of the elytra almost uniform throughout, 

 as in P. Bucldeyi, and the apices are not flattened. The 

 head is very coarsely and closely rugose. The mandibles as 

 long as the head, falcate. The tubercle behind the eyes is 

 thicker and larger and more obtuse at its apex than in any 

 other species known to me. The thorax is vermiculate- 

 rugose, almost as in the elytra; the sides have three nearly 

 equidistant acute teeth, the anterior one much smaller and 

 less prominent. The elytra are rather more than a third 

 longer than broad (19x 26 millim.), uniformly vermiculate- 

 rugulose, as in P. Buckleyi; the sides gently arcuate (not 

 rectilinear in any part). The antennas are black and reach 

 rather beyond the apex of the elytra. 



P7'{onocalus U7iiformis, sp. n. 



Niger, rugosus, sat nitidus ; thorace lateiibus deutibus duobus 

 armatis, angulis posticis rotundatis ; elytris coiivexis, fortiter 

 rugosis, humeris dente parvo acuto armatis, lateribus leviter 

 arcuatis ; antennis apicem versus tibiisque plus miuusve piceis ; 

 palpis tarsisque rufo-piceis. S • 



Long. 36-47 mm. 



Ilab. Peru, " at upper timber line, 3000 m., Nov." (P. 0. 

 Simons). 



This species is unlike any known to me, and from its form 



