new Neotropical Curculionide. 451 
there being only three clear strize between them in the basal 
half, whereas in D. balloui there are four; the shoulders are 
rather more sloping, and between the tenth and eleventh 
strize there is, behind the middle, a short intercalated row of 
six to eight punctures; finally, in D. ballouwi the spatula 
of the male aedeagus is rather shorter and appreciably more 
pointed. 
Diaprepes famelicus barbadensis, subsp. n. 
A distinctly larger and stouter insect than D. famelicus, 
Oliv., and of a uniform leaden-black colour, the clothing of 
the elytra consisting of short, narrow, curved, dark scales, 
which are dense along the lateral margins and apex and 
more sparse on the disk. 
The structural differences from D. famelicus are as 
follows:—The sculpturing of the prothorax is finer and 
smoother, there being no granules on the disk. ‘The scu- 
tellum is distinctly transverse, whereas in D. famelicus it is 
nearly as long as broad and subpentagonal. On the elytra 
the sutural margin is narrowly impressed ; the intervals are 
less carinate laterally, and at the extreme base the intervals 3 
and 5 are not appreciably higher and broader than those 
adjoining them; just beyond the fifth stria is a longitudinal 
area in which the punctures are very iregular. But the 
most striking character by which this form may be distin- 
guished from J). famelicus and its other subspecies is the 
complete absence of the usual round flat scales. 
Length 12-16, breadth 5-9 mm. 
Lesser ANTILLES: Barbados, on Agave americana (J. R. 
Bovell, H. A. Ballou). 
In a recent paper on Diaprepes (Journ. Agric. Research. 
Wash. iv., June 1915, p. 263) Mr. W. Dwight Pierce treats 
D, esuriens, Gyl., as a mere synonym of D. famelicus. This 
course seems inadvisable, as it obscures the difference in their 
geographical distribution. D. famelicus was originally 
described from Guadeloupe, and specimens from that island 
can be distinguished “by certain minor characters from 
examples which I have seen from Antigua, Montserrat, and 
St. Kitts. These agree well with the type of D. esuriens 
from St. Bartholomew, with which I compared them when in 
Stockholm in 1913. The characters by which these two 
forms may be distinguished are as follows :— 
D. famelicus.—Kyes rather less convex. LElytra with the 
intervals rather more costate, owing to the transverse spaces 
between the punctures being on a slightly lower level; the 
alternate dorsal intervals very slightly more raised than the 
ake 
