48 



NEW YORK STATE MUSEUM 



introduced form. This leaf feeder was probably brought into the 

 country on Japanese nursery stock and Dr. H. T. Fernald, writing 

 on the same, states that it has an extended distribution in the 

 Orient, occurring in Japan, on the Island of Yezo and southward 

 at least as far as Yokohama. It also occurs in China near Pekm, 

 where it is very abundant, and it has been reported as far south 

 as the Yiangtse-Kiang river, just north of the 30° of latitude. 

 This distribution would indicate that the insect will probably be 

 able to exist all over the United States except the peninsula of 

 Florida, north of Mexico and in southern Canada. Its eastern 

 food plants are Celtis, birch, elm and Japanese persimmon. It 

 was found mostly in this country on Norway maples, pear, apple 

 and cherry, though it also occurred on crab apple, willow, black 



birch, oak-leaved white birch, oak, 

 American elm, Wahoo elm, black- 

 berry, beech, poplar, mountain ash 

 and buckthorn. This data is culled 

 from a recently issued bulletin by 

 Dr Fernald.^ 



The cocoon is an oval structure 

 with peculiar broad white stripes 

 [fig. i]. One specimen was found 

 on a recent importation of Japa- 

 nese maples in a greenhouse at 

 Albany, though there is no evi- 

 dence to show that the insect has 

 become established in the open in 



Fig. I Cocoons of oriental slug caterpillar; this viciuity. It appears tO bc 3. 

 the larger probably female, on the twig; ^,-.1-,^,^^^n c-npnVc; in Tanan AA/V 



the smaller, probably male, empty, both COmmon SpCClCS m japan. VV e 



enlarged (Original) j^^^,^ ^^^^^ informed of earlier im- 



portations of Japanese maples bearing similar, possibly identical, 

 cocoons, so it would not be surprising were subsequent investigation 

 to show that this slug caterpillar was already established in several 

 widely separated localities. 



Scurfy scale (Chionaspis furfur a. Fitch) . This 

 whitish, scurfy or chafflike scale continued abundant in the Hudson 

 valley, being specially numerous in the vicinity of Annandale, where 

 it caused considerable apprehension because many people mistook 

 it for the San Jose scale, Aspidiotus perniciosus 

 Comst., a species which has become well established in Germantown 



^ Hatch Exper. Sta. Mass. Agr. Col. Bui. 114. Jan. 1907. 



