OBSERVATIONS OF INJURIOUS INSECTS. 



79 



every segment. Feeds on many green crops, especially piercing 

 into the hearts of close-headed cabbage. Moth with upper wings 

 greyish brown, variously streaked with black, slightly with white ; 

 under-wiugs brown, shading at the base to dirty white. 



Fig. 3. — Fieris Brassicce. 



5. Pieris Brassicce. Large white butterfly. Catei-pillar green, 

 or bluish, striped with yellow and dotted with black. Feeds on 

 expanded cabbage-leaves. Butterfly white, with black tips to the 

 wings ; the fore-wings with two black spots above in the female, 

 and beneath in both sexes. 



Fig. 4. — Agriotes obscurus. 

 .Natural size and magnified. 



6. Agriotes (obscurus or other species). "Wireworm. Larva long 

 and narrow, like a piece of flattened wire ; yellow and polished or 

 leathery. Feeds for several years in the ground on young corn and 

 most cultivated crops. Distinguishable from other grubs bearing 

 the name by having three pairs of legs. Beetle about one-third 

 of an inch in length, narrow, regains its position when laid on 

 its back with a spring, accompanied by a sharp click. 



