20 Mr. C. J. Galian on Lonf/icorn Coleoptiira 



Almost entirely covered with a close but short tatvny 

 pubescence. Antennae (?) a little longer than the body, with 

 the joints from the third to the tenth spined at their inner 

 apex, with the spines of the third and fourth joints long and 

 recurved, that of the fifth almost at right angles to the joint, 

 those of the following joints gradually becoming shorter and 

 directed more forwards, until in the tenth the spine is little 

 more than a sharp angulate process of the joint. Prothorax 

 crossed above by about nine tolerably regular transverse ridges, 

 exclusive of the raised anterior and posterior margins ; fur- 

 nished at the middle of each side with a rather feeble tubercle. 

 P^lytra each truncate and bispinose at the apex. Prosternal 

 process feebly tubercled. 



This species is to be distinguished by the structure of its 

 antennas from every known species of the genus. In colour 

 and general appearance it most nearly resembles a variety of 

 //. ph'caiuSj Oliv,, which is characterized by the absence of 

 the dark bands from the margins of the elytra. 



Hammaticherus Lacorduireij sp. n. 



rioccederus Lacordairei, Dej. Cat. 



H. hato similis, sed differt capite supra inter oculos distincte cari- 

 nato ; antennis {S) articulis tertio quartoque solis spinosis, ceteris 

 inermibus ; prothorace supra minus regulariter plicato. 



lloh. Argentine : Buenos Ayres, Salta. 



Brownish black, with a yellowish-grey or greenish-grey 

 pubescence. Prothorax with a conical tubercle on the middle 

 of each side, with a callosity (stronger in the male) between 

 this tubercle and the anterior margin ; crossed above by about 

 ten ridges in addition to the raised anterior and posterior 

 margins. Elytra pitchy brown, with a faint yellowish-grey 

 pubescence ; apices truncate, each bispinose. Legs greenish 

 grey ; tarsi reddish tawny. 



^ . Antennae more than twice as long as the body ; third 

 and fourth joints spined at the apex, with the spines turned 

 strongly backwards ; fifth joint very feebly dentate near the 

 apex, the remaining joints unarmed. 



? . Prothorax less regularly wrinkled above. Antenna3 

 a little longer than the body, with the third to fifth joints 

 each armed with a recurved spine at the apex, the sixth to 

 tenth joints denticulate at the apex. 



I have little doubt, considering the very close agreement 

 in colour, that the two specimens here described belong to the 

 same species. The male specimen is tVom Salta, the t'oinale 

 from liuenos Ayres. 



