238 MR. J. S. BALT ON THE COLOMBIAN 



about one lialf broader than long ; sides obliquely diverging from 

 the base to beyond the middle, thence rounded and converging 

 towards the apex ; disk deeply bifoveolate, the space between the 

 foveae depressed. Elytra oblong, convex, finely and rather closely 

 punctured, the punctures obsolete towards the apex ; the outer 

 disk rather more strongly and subseriate-punctate ; in some spe- 

 cimens there are faint traces below the humeral callus of one or 

 two longitudinal costae. . 



53. DiABKOTiCA ABBBEVIATA. Oblongo-ovata, convexa, fulva, nitida ; 

 tarsis antennisque, his basi exceptis, nigris, tibiis infuscatis ; thorace 

 bifoveolato ; elytris lajvibus, nigris, limbo laterali, vix ante apicera 

 abbreviate, fulvo. Long. 2 lin. 



Hah, Colombia {SteinheiV) . 



Head not longer than broad, triangular ; antennae filiform, the 

 second joint short, the third and fourth equal, each much longer 

 than the second. Thorax nearly twice as broad as long ; sides 

 diverging from the base to beyond the middle, thence obliquely 

 converging to the apex ; upper surface transversely convex, hinder 

 disk with two large, rather deeply impressed fovese. Elytra ob- 

 loDg, convex, nearly impunctate ; flavous limb abbreviated just 

 before reaching the sutural angle, its extreme apex slightly 

 dilated. 



D. ahhreviata may be known from D. cinctella, v. Harold, with 

 which it otherwise agrees, by the absence of the longitudinal groove 

 below the humeral callus. 



54. DiABROTiCA CINCTELLA, V. Karold, MittTieil. d. Milncliener 

 ent. Ver. 1877, p. 110. 



Hah. Muzo ; Mompos, El Eegedor. 



The specimens which I have referred to the above species have 

 black elytra, with the outer limb (abbreviated near the sutural 

 angle) narrowly flavous ; disk very minutely and remotely punc- 

 tured ; on the outer disk, below the humeral callus, is a deep 

 strongly punctured longitudinal groove, which extends for one 

 third the length of the elytron, its inner edge subcostate. 



55. DiABROTiCA puBLLA. ObloDga, postice vix ampliata, convexa, 

 nigra, nitida ; femoribus flavo-albidis, abdominis disco sordide fulvo ; 

 capite (antennis exceptis) thoraceque pallide fulvis ; hoc transverse, 

 disco subarcuatim excavato ; elytris convexis, disco subtiliter, ad 

 latera niagis distincte, punctatis, infra callum humeralem longitudina- 

 liter sulcatis ; limbo externo, apice extremo abbreviato, fascia arcuata 



