420 (44) Mr. G. R. Crotch's Revision of 



Pselaphacus confiisus, sp. n. 



P. sparso aflSnis, sed tliorace toto nigro, 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-vax'ieties.] 



Pselaphacus nigropictus, sp. n. 



Niger, nitidus, thorace snbtiliter punctato, lateribus rotundatis, 

 postice paulo coai'ctato; elytris obsoletissime punctulatis, striato- 

 punctatis, fulvo-ochraceis, margine, sutura, vitta apicali, maculis- 

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



Amazons (Bates). 



The second spot touches the shoidder, 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 tibise arcuate at their base ; thorax simple. 



Pselaphacus curvipes. 



Pselaphacus curvipes, Guev. R. Z. 157 (1841). 

 , Lac. Erot. 81. 



gracilipes, Lac. Erot. 82. 



Bolivia, N. Granada, Amazons. 

 (Jsegmento ultimo veutrali biimpresso. 



I cannot distinguish P. gracilipes by any character given by 

 Lacordaire. 



Pselaphacus trifasciatus.* 



Pselaphacus trifasciatus, Lac. Erot. 83. 



Cayenne. 



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

 to be merely P. curvijyes; the markings are identical, the tibiae 

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

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



Pselaphacus distortus. 



Pselaphacus distorfus, Crotch, Cist. Ent. 142. 

 Mexico, Nicaragua (Janson). 



Pselaphacus punctato-striatus, sp. n. 



Niger, nitidus, thorace transverso, obsolete parce punctato; 

 elytris Irevibus, profunde punctato-striatis, singulo lunula basali 



