350 Mr. J. 8. Baly’s Descriptions of 
pressed on either side, the space between the fove being also 
depressed ; the two black patches, triangular in shape, are placed 
one on each of the fovez, the surfaces of which they more than 
cover. Elytra moderately inflated, gradually increasing in width 
from their base towards the apex, the latter regularly rounded ; the 
two longitudinal vittee, which are moderately broad, commence at 
the base and terminate each a short distance from the sutural 
angle, the spot which ought to form their point of junction being 
occupied by a small square patch; in some individuals the sub- 
marginal vitta is continued onwards and is united with the patch 
itself. 
11. Diabrotica dimidiatipennis. 
Subelongata, nigra, subnitida; elytris a basi apicem versus am- 
pliatis, dense punctatis ; capite (ore, antennis oculisque pre- 
termissis), thorace bifoveolato, elytrorumque dimidio antico 
flavo-fulvis. 
Long. 4 lin. 
Hab. Peru. 
Front impressed with a longitudinal groove, which, dilated at its 
middle, extends upwards to the vertex ; antenne entirely black. 
Thorax transverse, disc smooth, impressed on either side, just 
behind the middle, with a large oblique fovea. Scutellumtriangular. 
Elytra closely and somewhat coarsely punctured. 
12. Diabrotica Saundersi. 
Subelongata, nigra, subopaca; capite, thorace bifoveolato, elytris- 
que fulvis, subnitidis, his ampliatis, dimidio postico nigro, 
opaco, granuloso, impunctato ; antennarum articulis dorso 
piceo-maculatis, tribus ultimis nigro-piceis. 
Long. 44 lin, 
Hab. Quito. 
Front impressed with a deep groove, which terminates just above 
the upper margin of the eyes in a deep fovea; antenne fulvous, 
their joints more or less stained above and at the apex with 
piceous, three terminal joints pitchy-black. ‘Thorax broader than 
in D. dimidiatipennis, impressed on either side, just behind the 
middle, with a very oblique fovea. Elytra much broader than the 
thorax, gradually increasing in width from base towards the apex, 
very convex; fulvous portion of their surface, which extends 
from the base to immediately before their middle, subnitidous, less 
closely and deeply punctured than in D. dimidiatipennis ; black 
portion very opaque, impunctate, minutely granulose. 
