36 Farmers’ Bulletin 1260. 
confused flour beetle but pale yellow and further differentiated by 
the peculiarly shaped antennz shown in figure 47 and by the minute 
canthus behind each eye. It has been reported from most parts of 
the world infesting wheat, rice, corn, barley, rye, flour, etc. It was 
first recognized in this country about 13 years 
ago from specimens taken in Texas. It is not 
known to be very widely distributed in the 
United States but is likely to be found in mills 
and granaries in the South. 
SLENDER-HORNED FLOUR BEETLE.” 
The slender-horned flour beetle owes its name 
to the peculiar structure of the mandibles or 
jaws of the male, which are armed with a pair 
of slender inctrved horns as shown in figure 
49. The beetle is about one-eighth of an inch 
long, flattened and brownish, closely resembling 
Fic. 47.—Long-headed the other flour beetles in appearance but easily 
rae igs (chit: distinguished by the peculiar structure of the 
jaws. It is distributed over the world and of 
frequent occurrence in the Southern States. It prefers to feed in 
flour and meal, but is found in a variety of grains. 
BROAD-HORNED FLOUR BEETLE.” 
The broad-horned flour beetle is closely related to the preceding 
species and is of similar form and appearance. It may be distin- 
guished from it by the shape of the horns with which the mandibles 
or jaws of the males are armed. In this species (fig. 
50) the horns are broad and stout in contrast to the 
slender incurved horns of the preceding species. Its 
habits are similar to those of the slender-horned flour 
beetle, and it is often found in seaport towns in ship- 
ments of grain and grain products. 
SMALL-EYED FLOUR BEETLE.” 
The small-eyed flour beetle (fig. 51) is the smallest 
of the so-called flour beetles that infest grain and 
grain products in this country. It isa tiny, flattened, py 48. —rathe- 
shiny, reddish-brown beetle, somewhat oblong in form —t:cus_ prosopis. 
: : 5 = (Chittenden. ) 
and measuring about one-twelfth of an inch in length. 
It occurs throughout the world and is widely distributed in this 
country. It prefers ground products in which to breed, but is not 
infrequently found in stored grains. 
* Gnathocerus mavillosus Fab. 2 Gnathocerus cornutus Fab. ® Palorus ratzeburgi Wism. 
