98 MARTIN JACOBY 
82. Monolepta basimarginata, Boisp. 
The short description given by this author, does not enable 
me with certainty to refer the two specimens before me, obtained 
at the Fly River by Mr. D’Albertis, to the above species, the 
description of which however agrees with the insects, as far as 
colour is concerned. The black basal margin of the elytra 
extends a little way down the shoulders, the two posterior 
femora and the breast is black also, but all the rest including 
the antennae is of a testaceous colour; the second joint of the 
antennae is rather more than half the length of the third joint; 
in one specimen the elytra which are impunctate as well as 
the thorax are. obsoletely longitudinally costate; the general 
characters agree with those of the genus Monolepta,; the size of 
the specimens is 21/, lines. 
83. Monolepta (2) dimidiata, n. sp. 
Oblong, subparallel, fulvous; antennae black, the three basal 
joints fulvous; thorax obsoletely impressed; elytra impunctate, 
fulvous, the posterior half, black. 
g¢’. Elytra with a short costa at the middle near the suture. 
Length 3 lines. 
Head impunctate, transversely grooved between the antennae; 
eyes large, entire, the palpi slender, piceous; antennae about 
half the length of the body, the first joint elongate, clubshaped, 
the second short, the third one half longer than the preceding, 
the rest more elongate and equal; thorax subquadrate, about one 
half broader than long, the sides nearly straight, the anterior 
angles thickened and obtuse, the posterior ones obliquely rounded 
but distinct; surface impressed at each side, impunctate; scutel- 
lum very small; elytra not visibly punctured, their anterior 
half fulvous, the rest black; pygidium prominent, fulvous; the 
apices of the femora and sometimes the tibiae obscure fuscous; 
the first joint of the posterior tarsi longer than the three fol- 
