1889. ] COLLECTED IN VENEZUELA. 283 
a rounded spot before and another below the middle, obscure 
piceous. 
Var. The anterior elytral spot absent. 
Length 2-23 lines. 
Head obscure testaceous, the vertex impunctate, the lower part 
vertical, the clypeus with a central ridge ; labrum black ; antennz 
more than two thirds the length of the body, testaceous, the basal 
three joints piceous, the third joint distinctly longer than the second 
but shorter than the fourth joint; thorax one half broader than 
long, narrowed towards the base, the disk flat, with a transverse 
depression near the base, finely punctured and somewhat rugose or 
finely wrinkled ; scutellum piceous ; elytra flattened, slightly widened 
posteriorly, the sides with a longitudinal ridge commencing at the 
shoulder and extending below the middle, the surface finely and 
closely punctured and rugose, a small rounded spot near the base 
and a larger one below the middle as well as the suture anteriorly, 
piceous ; underside and legs testaceous, the tibiw and tarsi sometimes 
piceous. 
Colonia Tovar. 
The long antenne, finely rugose thorax and elytra, in connexion 
with their pattern are the principal characteristic distinctions of this 
species ; although there is only one typical and three specimens 
representing the variety before me, I think that the former probably 
represents the normally coloured form. 
DIABROTICA NIGRODORSATA, Nh. Sp. 
Flavous ; the head, scutellum, and the sides of the breast black ; 
thorax fulvous, bifoveolate ; elytra closely punctured, black, narrowly 
margined with flavous. 
Male. Head deeply excavated below the antenne. 
Length 2—2+ lines. 
Head black, impunctate ; antennee two thirds the length of the 
body, pale flavous, the apical four joints piceous, third joint elongate, 
as long as the fourth; thorax about one haif broader than long, fulvous, 
stained with piceous, the disk impunctate, with two deep foveee ; 
scutellum black ; elytra closely and strongly punctured, black, the pos- 
terior portion of the sutural, the lateral and basal margin narrowly 
and the apical one more broadly flavous ; legs and abdomen flavous. 
Colonia Tovar. 
The female has a simple, not excavated head; in both sexes the 
basal flavous margin is irregularly notched at its posterior edge. 
DIABROTICA BOLIVIANA, Harold. 
San Esteban, Three specimens. 
DraproTica Rosusta, Baly. 
A single specimen from San Esteban. 
DiABROTICA SERRATICORNIS, Baly. 
A single specimen from San Esteban. 
