340 
WISCONSIN STATE AGRICULTURAL SOCIETY. 
Another true bug, that has been repeatedly seen by Mr. 
Biehl, of Alton, preying upon the Colorado 
larva, is the Bordered Soldier bug (Stiretrus 
fimbriatus , Say, Fig. 54.) Unlike the Spined 
Soldier-bug, this species is so conspicuously 
and prettily marked that it cannot easily be 
confounded with any other. We once met 
with seven or eight individuals in the web- 
Coiors—nark hot- nest of a small social caterpillar; and we 
tie-green and cream- 1 
color. have seen it more than once with its beak 
immersed in the body of the larva of the Asterias butterfly. 
It belongs to the same sub-group, and has the same short, 
robust beak, as the Spined Soldier-bug; but, unlike that 
species, it is by no means common. 
Another true bug, still more elegantly marked than the 
jrig. 55 . preceding, the Many-banded Bobber 
(.Harpactor ductus , Fabr., Fig. 55 a,) 
was observed by Dr. Shimer, of Mt. 
Carroll, Ill., to attack the Colorado 
larvae and we ourselves found it 
attacking the same larva in Missouri 
the same year. Like the Spined-bug, 
this species is common, and inhabits 
Colors—Yellow, white and black, trees more commonly than herbace¬ 
ous plants. But it belong to an entirely different group of 
the true bugs (Reduvius family) all of which, without excep¬ 
tion, are cannibals, and are characterized by a very short, 
robust, curved beak (Fig. 55 5,) profile view, magnified. We 
have noticed this species to prey upon a great variety of dif¬ 
ferent insects. 
The above three insects are all of them true bugs, and at¬ 
tack the larva 3 of the Colorado potato Lug with the only of¬ 
fensive weapon that they have—their beak. The four follow¬ 
ing (Figs. 56 to 59) are all beetles, and are consequently pio- 
vided with jaws, so that they are able to eat up their victims 
bodily ; and all of them, except the first which is confined to 
Fig . 54, 
