4H CLUB INSECT MANUAL 7 
Plant bugs.—Certain other members of the order Hemiptera that 
rather closely resemble the true stinkbug, except that they 
usually are smaller and a little more elon- 
gated, are the plant bugs. These insects 
have incomplete life changes. They have 
sucking mouth parts and four wings. ‘The 
adult can fly readily, and both the adults 
and nymphs crawl. This group feeds on 
the leaves and small stems of weeds and on 
many crops. Plant bugs spend the winter 
as adults beneath rubbish. Most of them 
are pests and are controlled by cultural 
practices. However, DDT dust or spray 
gives good control. The common tarnished 
plant bug (Lygus oblineatus) shown here is 
brownish. yellow in color, is marked with 
black, and is about three-sixteenths of an Meum 37 Plant bun 
inch long. : 
Chinch bug.—In the grain belt, when the chinch bug is mentioned, 
farmers’ thoughts at once go to the bug that destroys their grain crops. 
There are several species of chinch bug, but the 
most destructive one is Llissus leucopterus. 
This hemipteron has incomplete life changes. 
It is about three-sixteenths of an inch long. 
The adults have four white wings and are 
black with silvery-gray hairs. The nymphs 
are reddish in color. They suck the Juices 
from stems of grain, and, although small, quite 
often build up such enormous numbers that 
they cause complete destruction of large por- 
tions of grainfields. They overwinter prefer- 
ably in bunch erass and other grasses, but will 
survive under leaves on the eround in wood- 
land, under loose bark of trees, and in similar 
protected places. Control measures are chemi- 
cal barriers, cultural practices, and the planting of less favored hosts. 
Bedbug.—A nother one of the Hemiptera which is a notorious pest 
is the bedbug (C?mewx lectularius). ‘This insect has incomplete life 
changes. In ‘the adult stage it is about three-sixteenths 
of aninch long. It is reddish brown, has sucking mouth 
parts, and is wingless. This means that its only mode of 
travel is to crawl or be carried by man or moving objects. 
The bedbug feeds on man, chickens, and many other 
warm-blooded animals. In the South or in well-heated 
homes in the North these bugs continue to feed through- Frevrr 39.—Bed- 
out the winter. Allstages of the insect may be found the aS 
year round. To contr ol bedbugs, spray a 5-percent DDT solution on 
ee mattresses, springs, bedfr: ames, and on nearby furniture and 
walls 
FIGURE 38.—Chinch bug. 
HOMOPTERA (BUGS) 
The order Homoptera consists of a group of insects closely related 
to the Hemiptera. In fact some entomologists consider them a sub- 
order of the Hemiptera. 
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