246 ME. J. S. BALT ON THE COLOMBIAN 



69. DiABROTiCA MiMULA, V. Savold, Gol. Sefte, xiii. p. 92. 

 Hob. New Grranada. 



I do not know any insect wMcli I can refer witli certainty to 

 the above species. The female of D. Jekelii quite agrees in 

 coloration with v. Harold's descrijDtion, but the male of that species 

 differs entirely in possessing an excavated clypeus, 



70. DiABROTicA Jekelii. Ovata, postice ampliata, valde convexa, 

 nigra ; capite thoraceque flavo-fulvis, pedibus (femoribus basi exceptis) 

 antennisque pallide flavis, his apice tarsisque infuscatis ; tliorace Isevi, 

 sat profunde bifoveolato ; elytris late oblongis, ad apicetxi paullo amplia- 

 tis, apice obtusis; convexis, fortiter subseriato-punctatis, pone medium 

 obsolete elevato-vittatis ; nigris, fasciis duabus angustis, una infra basin, 

 altera vix pone medium positis, limboque externo flavis. Long. 3 lin. 



Mas. Facie inferiori profunde excavata, nigra ; antennis gracilibus, arti- 

 culo secundo brevi, subclavato, tertio apice oblique tvuucato, ad quar- 

 tum fere sequilongo, articulis quarto et sequentibus obsolete carinatis. 



ILah. Colombia. 



Head slightly longer than broad, subtrigonate ; lower portion 

 of face in the c? occupied by a deep, smooth, concave excavation, 

 which covers the upper four fifths of the clypeus ; the lower face 

 in the same sex is black ; the clypeus in the $ is slightly convex, 

 its medial line being faintly carinate ; labrum black in both sexes ; 

 antennse in the S filiform, the third and fourth joints equal, each 

 more than twice the length of the second. Thorax more than one 

 half broader than long ; sides straight and parallel from the base 

 to the middle, thence obliquely converging to the apex, hinder 

 angle acute ; disk smooth, impressed on either side with a deep 

 subrotundate fovea. Elytra broadly oblong, slightly increasing 

 in width towards the apex, the latter obtusely rounded ; upper 

 surface strongly subseriate-punctate, irregularly wrinkled on the 

 sides ; hinder disk with a few faint traces of longitudinal costse 

 similar to, but much less distinct than, in D. hella. 



Similar in coloration to D. mimiila, v. Harold, but from that 

 species the excavated face in the male at once separates it. The 

 male of the present species may be known from the same sex in 

 D. hella by the difference in shape of the excavated portion of the 

 lower face. In the female of D. Jekelii, the third joint of the 

 antennse is nearly equal in length to the fourth, its apex being 

 obliquely truncate ; in D. hella the third is distinctly sliorter 

 than the following joint ; the elytra are also less convex and 

 less strongly costate than in the latter insect. 



