New Genera and Species of Phytophaga. 349 
laterali, parte tertia postica fascidque lata vix pone medium 
posita, marginem non attingente, sordide flavis. 
Long. 4 lin. 
Hab. Columbia (Bogota). 
Front impressed with a large deep fovea. Thorax transverse, 
sides nearly straight, slightly converging from base to apex, an- 
terior angles thickened ; disc subremotely punctured, impressed on 
either side with a deep oblique fovea, a third smaller and rotundate 
being placed in the centre of the base, just in front of the scu- 
tellum. 
9. Diabrotica discoidalis. 
Subelongata, pallide flava, nitida; capite, scutello, pectore, 
femorum linea dorsali, tibiis tarsisque nigris; antennarum 
articulis tribus ultimis (ultimi apice excepto) albis; thorace 
vix transverso, dorso levi, non foveolato; elytris a basi 
apicem versus ampliatis, convexis, tenuiter punctatis, disco 
nigris, fascia latissima mediali, antice posticeque profunde 
sinuata, limbum non attingente, flava. 
Long. 42 lin. 
Hab. Banks of Napo, Ecuador. 
Front impressed with a deep fovea. Thorax scarcely broader 
than long, sides nearly straight, slightly converging from base to 
apex, more quickly narrowed at the apex itself, posterior angles 
produced into an obtuse tooth; disc smooth, remotely and obso- 
letely punctured ; in the middle of the basal margin is an indistinct 
depression. Elytra finely punctured, subovate, somewhat en- 
larged posteriorly, lateral margin broadly dilated. 
10. Diabrotica 4-vittata. 
Elongata, subtus nigra; thorace, metasterno plaga utrinque, 
abdominisque segmentorum marginibus sordide albis; supra 
sordide alba, ore, vertice, antennis totis, thoracis plagis 
duabus scutelloque nigris; thorace transverso, dorso levi, 
bifoveolato ; elytris sat ventricosis, fortiter crebre punctatis, 
subopacis, utrisque vitta submarginali, altera intra suturam, 
maculaque subapicali nigris. 
Long. 43 lin. 
Hab. Brazil. 
Front impressed with a deep fovea. Thorax transverse, sides 
nearly straight, slightly diverging from base towards the apex, 
sinuate behind the middle; disc smooth, impunctate, deeply im- 
