XVI. DINETUS. 93 
the anterior tarsi ciliated on the exterior, and the posterior 
tibiz with a few dispersed spines. 
The abdomen delicately punctured, with the basal segment 
entirely, and the base of the second, rufous, gradating in the 
latter towards the margin to piceous ; the remainder black, with 
their margins piceous, a slight silvery pubescence at the lateral 
margin of the second and third segments @. 
I am unacquainted with the ¢ of this insect. 
g In the Cabinets of Mr. Westwood, 
Mr. Stephens, and my own. 
+4} Two specimens of this insect were taken by Mr. 
Westwood at Coombe, in 1825, and he has again taken 
this year two or three more, with one of which he has 
obligingly supplied me. 
Genus XVI. Drinetus. Jurine. 
Heap transverse, depressed in front, about the width of the 
thorax ; eyes oval, converging at the vertex; stemmata placed 
in a triangle towards the vertex; antenne filiform in the fe- 
male, with the first joint incrassate, and larger in the males, 
with a deep Jateral impression, in which sex also the four 
following joints are submoniliform, the five next slightly 
compressed, and convolute, and the remaining three filiform, 
the ten first joints in the male, and all in the female, co- 
vered with a dense silvery pubescence, as well as the lower 
portion of the face, and the clypeus, which is transverse, 
convex, rounded in front; the labrum concealed ; the man- 
dibles tridentate, with an emargination at the base ex- 
teriorly. THorax oval; collar transverse; scutellum trans- 
verse, small; mefathorax truncate posteriorly; superior wings 
mith one marginal cell largely appendiculated, and two sub- 
marginal cells—the first submarginal oblong, recewing the jist 
recurrent nervure—the second small, triangular, receiving the 
second recurrent nervure ; the legs moderate, the femore ob- 
