44 PSELAPHACUS. 



Pselaphacus confusus, sp. n. 



F. sparso aflSiiis, sed thorace toto iiigro, elytris basi nigro 

 bimaculato. L. G lin. 



Para. 



[This and the preceding nine species are closely allied, and 

 I am inclined to think are very possibly colour-varieties.] 



Pselaphacus nigropictus, sp. n. 



Niger, nitidus, thorace subtiliter punctato, lateribus rotundatis, 

 postice paulo coarctato; elytris obsoletissime punctulatis, striato- 

 jjunctatis, fulvo-ochraceis, margine, sutvira, vitta apicali, maculis- 

 que 6 (2, 2, 2) nigris. L. 6— 7i lin. 



Amazons (Bates). 



The second spot touches the shoulder, the third reaches the 

 suture and sometimes joins the fourth, the fifth is occasionally 

 composed of two, the sixth is very small; the sutural margin is 

 dilated at the apex. 



B. Anterior tibiae arcuate at their base ; thorax simple. 



Pselaphacus curvipes. 



Pselaphacus citrvipes, Guer. R. Z. 157 (1841). 

 , Lac. Erot 81. 



gracilipes, Lac. Erot. 82. 



Bolivia, N. Granada, Amazons. 

 <5 segmento ultimo ventrali biimpresso. 



I cannot distinguish P. graciUpes by any character given by 

 Lacordaire. 



Pselaphacus trifasciatus/^ 



Pselaphacus (ri/asciahis, Lac. Erot. 83. 



Cayenne. 



Of this species I have not seen authentic types, it seems to me 

 to be merely P. curvipes; the mai'kings are identical, the tibire 

 less arcuate, and the posterior femora not dentate at the base; 

 hence I suppose it is founded on small males of P. curvipes. 



Pselaphacus distortus. 



Pselaphacus distortus, Crotch, Cist. Ent. 142. 

 Mexico, Nicaragua (Janson). 



Pselaphacus punctato-striatus, sp. n. 



Niger, nitidus, thoi'ace transverse, obsolete parcc punctato; 

 elytris hevibus, profunde punetato-stiiatis. singulo lunula basali 



