1878.] MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. 995 



parallel, closely punctate, with two or three obsolete costse on the 

 disk, of which the outer one is more distinctly raised, of the same 

 colour as the thorax ; a transverse band at the base narrowed towards 

 the suture and extending to the shoulders, a transverse spot in the 

 middle and another at a little distance from the apex of each elytron, 

 dark fuscous ; all the spots, as well as the lateral margin at its 

 anterior part, surrounded with yellowish white. Underside pale 

 testaceous, the tibiae darker, and the femora olive-green. 



Var. The middle spot on the elytra absent, as well as the apical 

 one, which is replaced by a yellowish patch. 



Hub. Nicaragua, Bogota. Var. Guatemala. 



Collected by Mr. Salvin. 



26. DlABROTICA NIGROVITTATA, Sp. nOV. 



Elongate, parallel, black. Thorax bifoveolate. Elytra yellowish 

 white, with the suture and a submargiual longitudinal stripe on 

 each elytron not reaching the apex, black. 



Length 2| lines. 



Head very shining black, smooth, with a fovea above the antennae; 

 the latter of about half the length of the body, entirely black ; 

 second and third joints short, equal. Thorax quadrate, narrowed 

 near the base, surface deeply bifoveolate, smooth, very shining black. 

 Scutellum black. Elytra about three times the length of the 

 thorax, with a longitudinal depression below the shoulders and ex- 

 tending a little below the middle ; surface very minutely punctured 

 and finely granulose, of a yellowish white, a longitudinal stripe from 

 the base, extending to a little distance from the apex and narrowed 

 at each end, black. Body and the legs shining black. 



One specimen from Mexico and another from Guatemala, in my 

 collection. 



27. DlABROTICA NOVEMMACULATA, Sp. nOV. 



Elongate, widened behind, flavous. Head and breast black. 

 Elytra finely punctate, flavous, five spots near the base and four 

 near the apex black. 



Length 4 lines. 



Head black, im punctate, with a fovea and two flat tubercles in 

 front of the antennae ; the latter more than half the length of the 

 body, with the third joint a little longer than the second, and the 

 fourth the longest, of a flavous or ferruginous colour, with the 

 middle joints stained more or less with fuscous. Thorax impunctate, 

 with two shallow depressions on its surface ; sides much deflexed 

 and margined, parallel near the base, widened above the middle. 

 Scutellum fuscous. Elytra but little wider at the base than the 

 thorax, gradually widened towards the apex, closely and irregularly 

 punctured, flavous, a triangular spot extending a little below the 

 base at the suture and surrounding the scutellum, an elongate 

 short stripe on each shoulder, a roundish spot between the latter 

 and the sutural one on each elytron, as well as four spots placed 



