THE TOBACCO BEETLE. 29 
Fic. 10.—Eggs (enlarged) of the larger tobacco beetle (Catorama tabaci) on leaf tobacco. 
Silvanus surinamensis Linnaeus and Cathartus advena Waltl are 
occasionally extremely abundant in tobacco warehouses, and the 
first-named species has been found to feed to a slight extent on to- 
bacco and tobacco seed. The pupa of 8. swrinamensis is shown in 
Plate IT, figure 4. 
Jones (77) states that in the Philippines a species of Bostrychidae 
and the shot-hole borer of bamboo (Dinoderus brevis Horn) are 
abundant and often are mistaken for the tobacco beetle. Like other 
insects often found in tobacco, their 
occurrence, however, is purely ac- 
cidental. Three other species of 
beetles have been recorded (43) as 
injuring cured and manufactured to- 
Fig. 11.—The drug-store beetle (Sito. bacco. These are the drugstore 
eee A aaa of adult. beetle (Sitodrepa panicea Linnaeus), 
the rice weevil (Calandra oryza Lin- 
naeus), and the leather beetle (Dermestes vulpinus Fabricius). The 
first of these insects is similar in general appearance to the tobacco 
beetle and might be mistaken for it, but the form of antenna (fig. 11) 
serves to distinguish it from the tobacco beetle (fig. 7). 
