282 MR. M. JACOBY ON COLEOPTERA [May 21, 



latter bifoveolate ; elytra metallic green, rugosely punctured, the 

 lateral and apical margin flavous. 



Male. Elytra with an elongate tubercle near the apex. 



Length 2g Hnes. 



Male. Head impunctate, entirely fulvous, with a small fovea 

 between the antennae ; the clypeus transversely subquadrate, spar- 

 ingly pubescent, labruni and palpi flavous ; antennse two thirds the 

 length of the body, black (the two penultimate joints in the female 

 flavous), the basal joint flavous below, the third more than double the 

 length of the second ; thorax twice as broad as long, the sides but 

 slightly rounded before the middle, the surface impunctate, fulvous, 

 shining, with a deep fovea at each side ; scntellum flavous ; elytra 

 dark metallic green, the disk transversely wrinkled and rugose, with 

 some narrow longitudinal costse and a strongly raised longitudinal 

 tubercle near the apex, the lateral margin narrowly, the apical one 

 more broadly, flavous ; underside and the upper edge of the femora 

 and tibia} as well as the tarsi entirely black. 



San Esteban. 



Allied to D. ambitiosa, Erichs., D. puncticollis, Baly, and several 

 other species, but diff'ering from all in the metallic elytra and the 

 different system of coloration, especially in the black underside. 



DiABROTICA VARICORNIS, n. Sp. 



Fulvous ; intermediate joints of the antennae black ; thorax bi- 

 foveolate ; elytra finely punctured, a ring-shaped mark at the base 

 and another semilunate one near the apex as well as the breast 

 black. 



Length 3 lines. 



Head impunctate, fulvous ; labrum black ; antennae elongate, 

 extending to two thirds of the length of the elytra, fulvous, the 

 fourth and the following five joints fuscous or black, the second 

 joint short, the third slightly longer ; thorax impunctate, nearly as 

 long as broad, the surface with two deep fovese : scutellum fulvous ; 

 elytra finely and closely punctured, the base of each with a regular 

 black ring-shaped mark, another semilunate similar mark, open at 

 its posterior portion, placed near the apex. 



San Esteban. 



Closely allied to B. irKvqualis, D, haroldi, Baly, and B. biannu- 

 laris, but diff'ering from all these species in the tulvous head and 

 legs ; from D. delineata, Jac, a still more closely allied species, the 

 present insect may be separated by the much longer antennae, which 

 have their joints (with the exception of the second and third) much 

 more elongate and also diff'erently coloured, and by the elvtral 

 broader markings which in B. delineata are very thin and fine. 



DiABROTICA OBSCURO-MACULATA, n. Sp. 



Subdepressed, obscure testaceous ; antennae long, the third joint 

 elongate ; thorax finely punctured, transversely depressed ; elytra 

 closely punctured, the interstices subrugose, the suture anteriorly. 



