The Bulletin 
9 
Tlie synonym of this species would therefore seem to be as follows: 
1807. Calandra callosa Olivier. Hist. Hat. des Ins. Vol. 5, p. 92, 
pi. 27, fig. 416. 
1837. Sphenophorus callosus Olivier. Schoenherr Genera et species 
curculionidum, page 492. 
1873. Sphenophorus sculptilis Horn (nec Uhler). Bhynchophora of 
America North of Mexico, page 424. 
1873. Sphenophorus cariosus Le Conte and Horn. Bhynchophora 
of America North of Mexico, page 425. 
1906. Sphenophorus callosus Chittenden. Proc. Ent, Soc., Wash. 
Vol. 7, pp. 166-182. 
DISTRIBUTION 
The distribution of the corn bill bug as recorded by Blatchley and 
Leng (1916) is as follows: Maine to Florida, westward to Arizona 
and northern Mexico and nothward to Wisconsin (Fig. 1). 
Figure 1. Map of the United States showing the distribution of the Southern Corn Bill Bug. 
Dots show recorded distribution. Shaded area approximate distribution. (In part after 
Webster.) 
In this State it is largely confined to the region known as the Coastal 
Plain. This in a general way corresponds to the Lower Austrial Life 
Zone. Its distribution in the State as determined by the records of the 
United States Bureau of Entomology and the records in this office are 
shown graphically in Fig. 2. The dots show places where this insect 
has been found by field investigations or by correspondence. The shad¬ 
ing indicates the approximate distribution of this species in the State. 
In the map (Fig. 2) the area of especial destructiveness to corn is 
shown by double shading. 
