41 



injure beets only when the former plant is exhausted or unavailable. 

 Occasional!}^ it occurs in some numbers, as has happened in several 

 localities in the past three years, and then may attack various other 

 useful plants, among which turnip, watermelon, buckwheat, grape, 

 and the leaves of apple have been recorded. During 1900 Mr. Edward 

 C. Post reported injury to sugar beets at Dundee, Mich., and Mr. T. 

 L3^tle, Manzanoia, Colo., reported damage to tomatoes and to apple 

 and prune trees. 



Fig. 3S.—Deilepliila lineata: a, moth; 6, pale larva; c, dark form of larva; d, pupa— all natural size 

 (original, Division of Entomology). 



The resemblance of the adult (tig. 38, a) to a humming bird is 

 marked particularly when the insect is in flight. It will be noted that 

 there are two forms of the caterpillar, a light one (h) and a dark one 

 (<?). The insect belongs to the same group as the more familiar 

 tomato and tobacco worms, and its life habits are somewhat similar. 



Remedies, — On account of the large size of this insect it is not 

 difficult to control it ])y picking the young caterpillars from the 

 plantt) and destroying them. They also succumb to the arsenicals. 



