20 INSECTS AFFECTING STORED PRODUCTS. 
swarming on the sides of the jar. In order to furnish them with 
food some shelled corn was placed in the jar. By May 5 they had 
riddled it, and by May 21 it was reduced to meal, and the beetles had 
perished. 
DESCRIPTIVE. 
Superficially this species bears some slight resemblance to the grain 
weevils previously treated. Belonging to the same family of Rhyn- 
chophora, the Calandride, it has the same slender depressed form 
and measures about one-eighth of an inch in length (8 mm.). It is of 
Fic. 4. Seed of avocado ( Persea gratissima) injured by the broad-nosed grain weevil. ( Original.) 
a similar dark-brown color, but may be readily distinguished from 
either of these species by characters which are well shown in the illus- 
trations of the two genera. Of these characters the most obvious are 
the much broader rostrum and mucronate tibiz of Caulophilus. 
A technical description follows: 
Reddish brown or piceous, feebly shining, form moderately robust. Rostrum longer 
than half the thorax, cylindrical, feebly arcuate, sparsely punctured, between the 
eyes an elongate impressed point. Thorax as broad as long, anteriorly moderately 
constricted, sides strongly arcuate, base slightly narrowed, feebly bisinuate and with 
an obsolete impression in front of the scutellum, surface moderately and evenly punc- 
tured. Elytra not wider than the thorax, moderately convex, strize moderately deep, 
