DIABEOTICA. 555 



depressions. The elytra have a longitudinal depression below the shoulders, and are 

 rather distantly and strongly punctured ; the transverse band at the basal margin has 

 three short black longitudinal stripes attached to it (one at the shoulder, another at the 

 suture, and a third between the others) ; the black marginal stripe is widened below the 

 middle into a triangular spot, which nearly joins the smaller spot on the disc ; and the 

 black colour also extends rather broadly inwards at the apex. The abdomen is 

 testaceous, the rest of the underside and legs black. 



121. Diabrotica inclusa. 



Flavous, the head and the breast black ;■ the third joint of the antennae elongate ; thorax without impressions, 

 impunctate ; elytra extremely closely punctured, flavous, a transverse band at the base enclosing a small 

 flavous spot, and another curved band near the apex, dark blue. 



Length 3 lines. 



Hab. Mexico, Jalapa (Edge). 



The only species with which B. inclusa can be satisfactorily compared is B. pulchella 

 of the first section ; in B. inclusa the second joint of the antennae (instead of being 

 short as in B. pulchella) is nearly three times as long as the second, and the antennae 

 themselves are entirely flavous or fulvous. The thorax is about one half broader than 

 long, rather constricted at the base ; the surface somewhat convex, and entirely without 

 depressions or punctures. The blue basal band of the elytra does not quite reach 

 the lateral margin and encloses a small flavous spot (probably this spot is sometimes 

 absent) ; the posterior band is narrower, slightly curved and pointed at its outer end, 

 and does not extend to either the sutural or lateral margins. The palpi are flavous. 



122. Diabrotica bicolor. (Tab. xxxil. fig. 6.) 



Black, the apical four joints of the antennae white; thorax flavous, obsoletely bi-impressed ; elytra finely 

 punctured, the anterior half black, the posterior half yellowish-white. 



Length 4 lines. 



Head black ; antennae slender, the third joint nearly three times as long as the second, the terminal four 

 joints almost white, the apex of the apical one black ; thorax twice as broad as long, bright yellow, 

 obsoletely impressed on either side, impunctate; scutellum black; elytra very finely punctured, with 

 some traces of longitudinal raised lines, the anterior half deep black, this colour divided from the white 

 posterior portion by a straight line ; underside and legs black, the coxae flavous. 



Hab. Nicakagua, Chontales (Belt). 



The curious coloration of B. bicolor, of which only a single specimen was obtained, 

 distinguishes it at first sight from any other species of the genus. 



123. Diabrotica interrupto-fasciata. (Tab. xxxi. fig. 13.) 



Diabrotica interrupto-fasciata, Baly, Ann. & Mag. Nat. Hist. 5th ser. hi. p. 75 (1879 x ). 

 Hab. Mexico, Oaxaca \ La Parada (Salle). 

 The elytra are of a reddish-fulvous colour, finely rugose, and have three narrow 



4b2 



