1877.] MR. M. JACOBY ON NEW COLEOPTERA. 517 



attached to the sutural stripe, causing the latter to assume a widened 

 appearance. Body below and legs lighter or darker brown, meta- 

 sternal process proportionately long, stout, and curved near the 

 apex. 



Var. Thorax, head, and markings on the elytra dark fuscous or 

 black. 



Length 4^ lines. 



Hab. Chontales, Nicaragua. 



Collected by Mr, Janson. 



It is doubtful if this species ought to be retained in the genus 

 Doryphura, as the fiUrorm antennae distinguish it from the other 

 species of this genus, and show rather its affinity to the genus Prosi- 

 cela of Chevrolat, from which it is, again, distinguished by the strong 

 development of the metasternfil process. 



13. DORYPHORA SEXMACOLATA, Sp. nOV. 



Oblong, ovate; head and thorax greenish or brown, elytra 

 greenish black, each elytron with three large fulvous spots. Head 

 closely and finely punctate, with a smooth longitudinal middle line ; 

 labrum and palpi pitchy ; antennse rather long, gradually increasing 

 in width towards the apex, greenish black or brown ; thorax but 

 little convex in the middle, with the anterior margin slightly sinuate, 

 the anterior and posterior angles very acute, and the surface closely 

 and evenly punctate, the punctuation a Httle stronger than that of 

 tlie head ; scutellum triangular, impunctate, shining ; elytra a little 

 wider at the base than the thorax, strongly punctate-striate, the 

 striae more regular near the sutural line than near the sides, greenish 

 black, an irregular oblong spot at the base near the scutellum, a tri- 

 angular-shaped one, of larger size, in the middle, near the lateral 

 margin, and another, of the same size or larger, near the apex of 

 each elytron fulvous; body below and legs greenish. 



Length 6 lines. 



Hab. Peru. 



Collection Jacoby. 



This species varies, as the description shows, in colour, from 

 greenish to bruwn as regards the head, antennse, and thorax, as well 

 as the entire underside, with the legs, but does not differ in other 

 respects. 



14. DoRYPHORA CHRYSOMELOIDES, Sp. UOV. 



Ovate, very convex, and much widened behind, very shining, of a 

 uniform greenish bronze-colour; head with a more or less distinct 

 middle line on the vertex, very irregular, and rather strongly punc- 

 tate, with a triangular flavous spot near the base ; epistome separated 

 from the front by a more or less rounded thin groove, punctured ; 

 labrum and mandibulge greenish black ; antennse not half the length 

 of the body, the first joints metallic green, the rest violaceous black 

 and transversely subquadrate. Thorax with the anterior margin 

 slightly ])roduced in the middle, and a shallow, more or less distinct 

 fovea near the lateral margins ; disk finely punctate, the punctures 



