of the Southern portions of South America. 45 



Suppl. p. 33G), a uame which must stand, unless the species be 

 described either by Khig or Buquet, and that previous to 1834, 

 the date of Erichson's paper. 



24. Nyct. picipes, Dej., is the N. nodosa, Lat., and N. brunnipes 

 of the same author. Nycielia nodosa, Soher. The only true Nijctelia 

 known to the last-mentioned author when he restricted the genus. 

 Should it be true, as M. Solier states, that this species is found 

 both in Chile and at Buenos Ayres, it w^ould aiford an exception 

 to a general rule, not only that the same species do not occur on 

 both sides of the Andes, but that the restricted genus Nyctelia (now 

 containing to my knowledge no less than twenty species, seven- 

 teen of which are described in the 'Proceedings^ quoted) is con- 

 fined to the west side of that range of mountains. I know that 

 the N. nodosa is found at Maldonado La Plata, Bahia Blanca and 

 Mendoza ; but though I have seen several very extensive collec- 

 tions from Chile, I have not found that species in them. I think 

 there must be some accidental error in the labelling of the speci- 

 mens placed in M. Solier's hands. 



Genus Entomoderes, Solier. 



M. Solier characterizes but one species of this genus, the Ent. 

 Erehi. Three others are enumerated by Dejean, viz. : — 



Entomoderes Draco, Lacord. 

 Ent. niger, et epidermide sordida quasi limosa obtectus : thorace an- 

 gulis anterioribus productis, posticis obtusis, et postice ad latera 

 profunda emarginatis, exinde angulo oriente abrupto acute et re- 

 trorsum spectante, superficie dorsali costis duabus asperis longi- 

 tudinaUbus et parallelis : elytris subovatis, superne leviter convexis 

 et tuberculis crebre obsitis, carina lateraH tuberculis parvis irregu- 

 lariter gemmata. — Long. corp. 10 lin. ; lat. b^ lin. 



Ent. Draco is covered throughout with a substance resembling 

 mud. In the form of the thorax it approaches most nearly to 

 Ent. Erehi, but there is no second prominent angle behind as in 

 that species ; the second angle being the posterior angle of the 

 thorax, wliich is produced in a lateral direction : it is obtuse in 

 the present species. The anterior angles of the thorax are very 

 prominent : on each side of the disc are two considerably elevated 

 longitudinal protuberances (larger than the corresponding pro- 

 tuberances in Ent. Erehi), and between these and the outer 

 margin are two narrow curved protuljerances ; there is moreover 

 a short central raised line on the hinder part of the thorax ; the 

 thorax is much contracted in front, and greatly dilated rather be- 

 hind the middle. The elytra are formed as in Ent. Er-ehi, but 

 they are fiat above, excepting towards the apex, where they de- 

 scend somewhat suddenly ; they are destitute of the ridge which 

 in that species runs parallel with the lateral costa : various irre- 



