790 MR. M. JACOBY ON NEW [Dec. 16, 



nearly equal length, black, the seventh and eighth joints light flavous. 

 Thorax transverse, sinuate behind the middle, anterior angles slightly- 

 prominent ; surface impunctate, flavous, with a large black spot at 

 either side. Scutellum black. Elytra dilated posteriorly, broadly 

 margined at the middle ; surface strongly and closely punctured, 

 metallic green, the margins and suture narrowly, the apex broadly 

 flavous. 



33. DiABROTICA FOVEIPENNIS, Sp. nOV. 



Oblong. Flavous ; thorax bifoveolate, minutely punctate ; elytra 

 finely but distinctly punctured, flavous, the suture (narrowly) and 

 four very obsolete spots on the disk ferruginous, lateral margins 

 interrupted in the middle by a deep fovea. 



Length 3| lines. 



Hab. DueSas, Guatemala. 



Head very finely punctured, as long as broad ; front with a small 

 fovea ; encarpse and carina distinct ; antennae filiform, longer than 

 half the body, second joint short, third of double the length, 

 entirely flavous. Thorax transverse, subquadrate, sides finely mar- 

 gined, strongly contracted behind the middle, anterior angles not 

 pointed, posterior ones slightly thickened, surface minutely punc- 

 tured, bifoveolate on the disk, the foveae closely approached. 

 Scutellum smooth. Elytra slightly widened at the middle, closely 

 and more deeply punctured than the thorax, each elytron with a 

 deep fovea, situated immediately before the middle of the lateral 

 margin, the latter itself being produced at that place into a tri- 

 angular tooth, while the interior of the fovea contains another still 

 more pointed triangular elevation ; two indistinct spots, one before 

 the other behind the middle, on the disk of each elytron, as well as 

 the suture narrowly, ferruginous. Underside and legs entirely 

 flavous. Claws appendiculate. 



Collected by Mr. Champion. 



This and the following species I rather reluctantly describe 

 under the generic name of Diabrotica, on account of their appendi- 

 culated claws and the curious elytral foveee. The latter character, 

 I think, is peculiar to the male insect ; but as in all other par- 

 ticulars the species agree with Diabrotica, I have placed them 

 there for the present. 



34. Diabrotica tripunctata, sp. nov. 



Elongate. Obscure fulvous, base of femora and the antennae black; 

 vertex ferruginous ; above yellowish or light testaceous, opaque. 

 Scutellum, three triangularly placed spots on each elytron, and the 

 suture black. 



cJ (?) . Elytra with a deep fovea near the lateral margin, before 

 the middle. 



Length 4 lines. 



Hab. Capetillo, DueSas (Guatemala). 



Head not longer than broad, longitudinally and transversely 

 grooved between the eyes ; vertex ferruginous, lower part of face 

 light testaceous ; antennae of the same shape and length as the pre- 



