September, 1941 
ATRITIBIALI/S 
VANDUZEE/ 
OBLINEATUS PABULINUS 
KNIGHT: PLANT Bucs, or MiripAgz, oF ILLINOIS 149 
ESM NEISUOES, ELISUS 
SS 
PLAGIATUS 
APICALIS 
CAMPESTRIS 
Fig. 161.—Male genital claspers of Lygus. A, left clasper, lateral aspect; B, left clasper, dorsal 
aspect; C, right clasper, mesal aspect. 
central area; hemelytra reddish brown or 
blackish, streaked with yellowish or gray. 
The amount of black on the dorsum varies 
greatly. 
The very dark extremes in which the 
black predominates belong to the variety 
strigulatus (Walker) (1873, p. 94). Both 
extremes and their intergrades have been 
collected together throughout Illinois. 
Known DistrisutTion.—This is the com- 
monest species of the family Miridae in the 
eastern United States and is found every- 
where frequenting many kinds of plants. It 
is a pest on nursery stock, ornamental plants 
and cultivated crops. The adults hibernate 
chiefly under leaves on the ground; many 
also hibernate in mullein rosettes. 
Illinois Records.—Five hundred eighty- 
five males and 453 females, taken Jan. 24 to 
Nov. 13, are from Albion, Algonquin, Al- 
lerton, Alton, Alto Pass, Amboy, Antioch, 
Apple River Canyon State Park, Auburn 
Park, Beach, Beardstown, Beverly Hills, 
Bloomington, Bluff Springs, Borton, 
Browns, Bureau, Cache, Calvin, Carbon- 
dale, Carthage, Cary, Champaign, Charles- 
ton, Chester, Chicago, Custer Park, Cy- 
press, Danville, Darwin, Decatur, Delavan, 
De Soto, Dixon, Dolson, Dubois, East Cape 
Girardeau, East Dubuque, Effingham, E1- 
