6 Bulletin 124. 



illustrated account of the pest, describing and naming it as new 

 lo science. Scarcely anything new has been recorded about the 

 insect since. What was doubtless the same case-bearer was recorded 

 from Kentucky in 187S, and was found upon chestnut bark near 

 Ithaca, N. Y., in 1880. In the spring of 1882, the insect did con- 

 siderable damage in apple orchards at South Byifon, N. Y. It 

 did not again attract serious attention in New York state until 

 1896. In 1 89 1, a few specimens were sent to Dr. Lintner from 

 Lansing, Oswego Co., and Walworth, Wayne Co., and the same 

 j^ear we found some of the cases on a wild cherry tree near the 

 insectary. The insect was reported as occurring in Nebraska 

 and adjoining states in 1894, and we received a few specimens 

 from Sodus, Wayne Co., N, Y., the same year. In 1895, it was 

 found in Canada and in New Mexico. During the past year, the 

 insect did much damage in large apple orchards at Geneva and 

 at Walworth, N. Y. We also received it from Clarkson, Monroe 

 Co. , N. Y. It has been recorded from New Jersey as common on 

 apple, plum and cherry. 



Thus the insect has quite a wide range of food-plants, including 

 the three orchard fruits just mentioned, and probably the chest- 

 nut. It is also widely distributed over the country, occurring 

 from Canada southward through New York and Pennsylvania 

 and westward through Nebraska into New Mexico. It has been 

 injurious only in New York and Pennsylvania. Nothing can be 

 predicted as to its future. 



How distributed. — It is claimed that the pest was introduced 

 into the far west on eastern nursery stock. This is doubtless 

 by far the most fruitful source for the distribution of the insect. 



ITS APPEARANCE. 



On account of its small size and peculiar habits, the insect 

 itself in any stage, will rarely be noticed by the fruit-grower. 

 But one of the curious suits, or cases as they are called, which 

 the little caterpillar wears, is quite conspicuous, thus often reveal- 

 rug its presence to the casual observer. 



The caterpillar a?id its curious case. — The insect is destructive 

 only in its caterpillar stage, and yet the fruit-grower usually sees 

 only the peculiar suit or case worn by the caterpillar. Several of 



