LLLUSTERAT IONS. 
Fig. 1.—Map of North America showing areas infested by the chineh bug_ 
P= lmmavirerstices On thes chimeht lesa ee 
3.—Blissus leucopterus: adult of long-winged form____---~-------- 
4.—Blissus leucopterus: adults of short-winged form__-~~--~~---~-_- 
5.—Corn plant infested with chinch bugs____---------------__------ 
NESTS TVG RUSE CULIL Sma eee ee ee 
pI OS TIVO GLIUCH. Cy a ee ee 
SE = COnIMeEland “PUllGAit a= ee ee 
9.—Brachyrhynchus granulatus: larva, pupa, and adults__-------~__ 
10.—Map showing areas in the United States over which the chinch 
bug occurs in greatest abundance and may at any time become 
CL OGSTECTC liye ee en es Se es 2 ee eee ee 
11.—Map showing distribution of the chinch bug in Ohio in 189625. == 
12.—Map showing distribution of the chinch bug in Ohio in Soi 
13.—Map showing distribution of the chinch bug in Ohio in NSO sas 
14.—Map showing distribution of the chinch bug in Ohio in 1895 and 
amount of precipitation over the State during May, 1895__--__- 
LED Sa SUQLO SLS =e ee ee ee 
WA SSVI COUCWUD 2S 
17.—Map showing probable course of diffusion of the chinch bug over 
IN@aue) AW aie oe ee ee ee 
1 = Plissiiseaoric. lmmeatine: Stacege-=. ==!) Sees ee 
Oe iS SUSU ONG AC UGS ee ee 
~] 
