SPECIES OP THE &ENirS DIABBOTICA. 251 



Nearly allied to B. Iceta, more convex and more strongly punc- 

 tured tliau that species ; the third aud fourth joints of the 

 antennae equal in length. 



78. DiABEOTiCA iMiTAKs, Jttcoby, Proc. Zbol. Soc. 1879, 

 p. 791. 



Hah. Yenezuela, 



Nearly allied to D. clypeata; differing (according to the author's 

 description) in having the lower face only black, and in the 

 interspaces on the elytra being faintly rugulose : the sculpturing 

 of the thorax also differs ; in the present species it is described as 

 " obsoletely transversely depressed," in D. clypeata it is impressed 

 on either side with a distinct fovea. 



79. DiABROTiCA DELiciosA. Angustc ovata, postice ampliata, valde 

 convexa, nigra, nitida ; pedibus flavo-fulvis, capita thoraceque rufis, 

 hoc Isevi, bifoveolato ; scutello oreque piceis ; elytris flaVis, piceo 

 punctatis, punctis sat fortiter impressis; iitrisque maculis duabus 

 mfra basin transversim positis, plagaque magna subapicali, fere ad 

 marginemet ad suturamextensa, nigris. (Antenncsdesunt.) Long. 31in. 



Sab. Colombia : a single specimen in my collection. 



Head longer than broad, wedge-shaped; labrum and mouth 

 piceous, lower face nearly plane ; the antennae (in the single 

 specimen before me) broken off. Thorax one half broader than 

 long ; sides sinuate and slightly converging from the base to the 

 middle, thence obliquely converging to the apex ; upper surface 

 transversely convex, disk remotely and very finely punctured, bi- 

 foveolate. Elytra oblong, gradually dilated towards the apex, 

 the latter obtusely rounded, strongly convex, rather strongly but 

 not very closely punctured, punctures piceous. 



N. Body broadly ovate, dilated posteriorly, convex ; coloration of 

 elytra variable. Male in some species with a subapical 

 tubercle placed near the sutural margin ; the antennae in the 

 same sex rarely compressed and serrate. 



80. DiABROTiCA BuTLERi. Ovata, postice ampliata, valde convexa, 

 sordide flava, nitida; abdomine tarsisque nigris, metapectore, femori- 

 bus anticis basi, tibiisque obscure piceis; thorace transverse, Isevi, 

 distincte bifoveolato ; elytris subventricosis, ante medium minus crebre, 

 sat fortiter punctatis, pone medium nigris, minus nitidis, ci'ebre at 

 fortiter punctatis. Long. 4 lin. 



Sab. S. Kosa, Manizalis : coll. Steinheil ; also Medellin : my 

 collection. 



