540 PHYTOPHAGA. 



elytra closely and distinctly punctured, the suture and a broad longitudinal band on the disc of each 

 black. 



Length 2|-3 lines. 



Head impunctate, flavous, the vertex with two black spots ; labrum more or less black ; antennae black, the 

 basal joint fulvous below, the third joint twice as long as the second ; thorax twice as broad as long, the 

 disc finely and closely punctured, with an obsolete fovea on each side, testaceous or flavous, with four 

 small black spots placed transversely across the disc ; scutellum black ; elytra widened posteriorly, some- 

 what rugosely and closely punctured, the suture narrowly black, the entire middle portion of the disc 

 occupied by a longitudinal black band not extending to the apex and gradually widened from the base to 

 the posterior portion j femora flavous, the two anterior pairs with a black line above, the tibiae and tarsi 

 black. 



Kab. Mexico, Juquila, La Parada, Yolos, Coscomatepec {Salle), Cordova (Edge). 



Easily distinguished from D. separata, Baly, by the colour of the head, the spotted 

 thorax, and the entirely different sculpture of the elytra. A specimen from Cordova 

 is figured. 



86. Diabrotica granulata. (Tab. XXXI. fig. 4.) 



Piceous ; thorax flavous, impunctate, bifoveolate ; elytra minutely and subremotely punctured, without costse, 

 yellowish-white, a narrow sutural and a broad discoidal longitudinal vitta, black ; legs flavous, marked 

 with black. 



Length 2 lines. 



Head black, with a few fine punctures on the vertex, the latter deeply foveolate ;. clypeus entirely or partly 

 flavous, with a distinct central ridge ; antennas black, the three basal joints flavous below, the third joint 

 scarcely twice the length of the second ; thorax twice as broad as long, the sides nearly straight at the 

 base and slightly rounded and narrowed in front, the disc impunctate, with an oblique fovea on each side ; 

 scutellum black ; elytra rather broad and flattened, very finely and not very closely punctured the inter- 

 stices very minutely granulate, the suture narrowly black throughout its entire length, the lateral vitta 

 twice as wide as the sutural one and not quite extending to the apex ; legs flavous, the anterior femora 

 with a black line above, the knees, the outer side of the tibiae, and the tarsi, black. 



Hob. Mexico, Cordova, Guanajuato (Salle), Jalapa (Edge); Guatemala, Capetillo 

 (Champion). 



In general shape and in the elytral pattern this species resembles B. decorata, from 

 which the fine punctuation of the elytra and their minutely granulate surface, as well 

 as the absence of the thoracic spots, separate it. A similar difference in the punctu- 

 ation of the elytra and the shape of the thorax distinguishes D. granulata from 

 D. maculicollis, with which it agrees in the broad discoidal elytral vittse. The flavous 

 colour of the lower part of the face varies greatly in extent and is sometimes restricted 

 to a small spot at the base of the antennae. We figure an example from Guanajuato. 



87. Diabrotica maculicollis. 



Oblong ovate, widened behind, black ; head and thorax fulvous, the disc of the latter deeply bifoveolate, and 

 with four black spots ; elytra closely semirugose-punctate, a sutural band, narrowed posteriorly, and a 

 longitudinal discoidal vitta, narrowed at the base, black. 



Length 3 lines. 



Eab. Panama, Volcan de Chiriqui (Champion). 



