248 ME. J. S. BALT ON NEW SPECIES 



This insect, iu external form, strongly resembles the smaller 

 species of Pseudocolaspis. 



G-enus EcrBUACHrs, Dej. Oaf. {Pseiodocolaspis, Chap., Pairm.). 



Prothoracis episterni antica raargine antico concavo aut rectOj angulo 

 antero-intei-no non libero ; characteribiis cBeteris ut in Pseudocolas'pide. 



Type JEubracJiis cylindrica. 



On recently arranging my species of Pseudocolaspis I found 

 that the insects were separable into two distinct generic groups : 

 in the one, of which P. ccerulea, Laporte, must be taken as the 

 type, and which, consequently, must retain Laporte' s name, the 

 anterior margin of the prothoracic episternum is more or less con- 

 vex, its antero-internal angle being free and not continuous with 

 the anterior margin of the presternum ; in the second form, on 

 which Dr. Chapuis has 'apparently drawn up his characters of 

 Pseudocolaspis, the anterior margin of the episternum is straight 

 or slightly concave, and its antero-internal angle is continuous 

 with the outer angle of the prosternum. For this genus I propose 

 to retain the name Ealraclds, used for these insects by Chevrolat 

 in the 3rd edition of Dejean's Catalogue. The following short 

 table will show at once the distinction between the two genera: — 



Apical margin of anterior episternum convex 

 or angulate, its antero-internal angle 

 free • Pseudocolaspis. 



Apicalmarginof anterior episternum straight 

 or concave, the antero-internal angle 

 continuous with the prosternum .... Eiibrachis. 



EuBRACHis SPiNiPES;, n. sp. Oblongaj valde convexa, nitida, subtus 

 nigro-asnea, pedibus Isete metallico-purpurcis cyaneo tinctis ; supra 

 obscure cupreo-purpurea cyaueo et viridi-asneo tincta, pube grisea 

 subsquamiformi parous vestita; aiitennis piceo-rufis, viridi-aeneo- 

 micantibus, articulis ultimis quinque nigris ; thorace subgloboso, 

 rude rugoso, transversim elevato-strigoso ; elytris thoracis basi 

 multo latioribus, obovatis, convexis, iufra basin late transversim 

 depressis, callo hunieraU valde elevato, compresso ; parce confuse 

 punctatis, ante medium rude rugosis, pone medium vittis costiformi- 

 bus interruptis, tuberculisque magnis in Scries longitudinales dis- 

 positis instructis ; femoribus subtus spinis validis duabus arcuatis. 

 Long. 25 h"' 



