150 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. [Feb. 5, 



joint scarcely double the length of the second, the middle joints 

 fuscous, the first and three last joints almost white, extreme apex 

 fuscous; thorax quadrate, obsoletely impressed on the disk, the 

 latter impunctate, shining flavous ; scutellum black ; elytra irregu- 

 larly and closely punctate, of a little lighter colour than the thorax, 

 the" base, suture, a submarginal longitudinal stripe from the base to 

 the apex, and another stripe on the disk of each elytron, not reaching 

 the apex, black. Body below and femora testaceous ; breast, tibiae, 

 and tarsi black. 



Length 3 lines. 



Hab. Guatemala. 



Collected by Mr. Salvin. 



15. DlABROTICA VIRIDIMACULATA, Sp. nOV. 



Above black ; thorax, a round spot near the base, a transverse 

 vitta behind the middle, the apex, and the extreme lateral margin of 

 each elytron greenish ; head black, shining, impunctate, with a deep 

 fovea in the middle ; antennae long, filiform, with four middle joints 

 fuscous, the others light testaceous ; thorax quadrate, obsoletely 

 impressed on the disk with two foveas, and a smaller one near the 

 base ; scutellum obscure fuscous ; elytra widened behind, narrowly 

 margined, surface closely and finely punctate, with a short longitu- 

 dinal depression near the sides, black, the margins, a large round 

 spot occupying the apex, another smaller one below the base, and 

 a transverse band behind the middle, not quite touching the suture, 

 light greenish. Underside light flavous; breast, tibiae, and tarsi 

 fuscous. 



Length 3 lines. 



Hab. Cayenne. 



Collection Jacoby. 



16. DlABROTICA GRACILIS, Sp. nOV. 



Oblong, green, each elytron with the base and a spot near the 

 apex fulvous ; head black, impunctate ; antennae with the second 

 and third joints very short, equal, the first joint light green, the 

 second to the eighth fuscous, ninth and tenth joints light flavous, 

 and the apical one black ; thorax quadrate, narrowed near the base, 

 disk bifoveolate, bright green, obsoletely punctured ; scutellum 

 black, smooth ; elytra closely punctate, a little rugose near the 

 sides, of the same green colour as the thorax, the base in shape of a 

 transverse band, and a large round spot near the apex, bright fulvous, 

 the suture in the neighbourhood of the scutellum, and extending to 

 the end of the basal vitta, narrowly edged with black. Underside 

 green; breast, tibiae, and tarsi black. 



Length 2g lines. 



Hab. Brazil. 



17. DlABROTICA NIGROMACULATA, Sp. nOV. 



Elongate, green ; head and five markings on the elytra black ; 

 head shining, with the usual fovea in the middle ; antennee dark 



