3148 Mr. J. S. Baly’s Descriptions of 
6. Diabrotica tenella. (0 
Elongata, viridis, nitida; pectore,‘abdomine, pedibus antennisque 
flavis, his articulis quatuor ultimis nigro-fuscis; thorace sub- 
quadrato, levi, dorso bifoveolato ; elytris paullo ampliatis, 
apice subtruncatis, prope suturam leviter obsolete sinuatis, 
prasinis, subnitidis, crebre punctatis. 
Long. 33 lin. 
Hab. Mexico. 
Front impressed with a large fovea; mouth fulvous. Thorax 
subquadrate, sides nearly straight and parallel, slightly converging 
at their apex, anterior angles tuberculate ; disc moderately convex, 
flattened at the base, smooth, impunctate, impressed on either side 
behind the middle with a large fovea. 
7. Diabrotica suturalis. 
Elongata, nigra, nitida; antennis sordide albis, basi infuscatis ; 
thorace transversim excavato, piceo, apice, superficiei infe- 
rioris lateribus, femoribusque pallide fulvis, his dorso versus 
apicem, tibiis tarsisque fuscis; elytris subelongatis, paullo 
ampliatis, modice convexis, dorso subdepressis, tenuiter 
subcrebre punctatis, sordide fulvis, vitté lata suturali a basi 
fere ad apicem extensa, medio constricta, nigra. 
Mas.—Elytris apicem versus prope suturam creta elevata brevi 
instructis. 
Long. 4 lin, 
Hab. Cayenne. 
Front impressed with a longitudinal groove, which runs upwards 
to the vertex, its middle impressed with a distinct fovea. Thorax 
transverse, sides nearly straight and parallel, sinuate behind the 
middle, converging in front, obliquely deflexed ; upper surface 
nitidous, remotely punctured, broadly excavated transversely, 
either side of the excavated portion being more deeply excavated 
than the centre, and forming two distinct foveze on its surface. 
8. Diabrotica Hebe. 
Subelongata, nigra, nitida; vertice thoraceque trifoveolato 
rufo-piceis; femoribus antennisque flavis, harum articulis 
quinque basalibus dorso piceis, articulo ultimo apice nigro ; 
elytris ampliatis, subventricosis, singulatim apice obsolete 
sinuatis, sat fortiter suberebre punctatis, castaneis, margine 
