■ 
ICLE Y. NOTES ON INSECTS INJURIOUS TO THE 
APPLE AND PEAR. 
1. Datana contract a < Walker. 
Order Lepidoptera. Family Bombycid.e. 
a a number of yellow-necked apple caterpillars collected on 
trees August 13, 1883, and used in an experiment upon a 
ious disease of insects, two pupae resulted, one of which 
|d. This, to my surprise, proved to be an unquestioned 
i contracta, agreeing in every essential particular with the de- 
on and figures given by Grote and Robinson in Volume YI of 
oceedings of the Entomological Society of Philadelphia.* 
discal spot upon the first brown line of the anterior wing is 
ident, however; the first and second lines meet on the inner 
i of the wing; and the fourth line is nearly obsolete. In other 
its the correspondence is exact. The larva pupated Septem- 
, 1883, and the moth emerged June 23, 1884. 
f 
2. Biston ypsilon, n. s. 
Order Lepidoptera. Family Phal.enid>e. 
(Plate X. Fig. 4.) 
mgle looping larva, two inches long, was obtained from the 
near Warsaw, June 26, 1883, and fed upon apple leaves until 
’, when it entered the earth for pupation. Here it remained 
April of the following year, on the 8th of which month the 
moth was noted in the breeding cage. 
go .—The single male specimen bred is of a brownish gray color; 
dusky gray; palpi black; antenme dusky, widely pectinate; 
: gray, with three transverse dark lines, the anterior and middle 
: :e, the posterior straight. The front wings are brownish gray 
id with black on basal and terminal thirds, marked with three 
erse black lines with the space between the first and third 
,;ray minutely specked with black, these specks taking the form 
msverse lineations on the costa. The inner line is obliquely 
•;e, its inner end being about half the distance of the outer from 
ase of the wing. The third line is sinuate, bending broadly 
i ;d around the end of the discal cell and then running nearly 
I ,ge 14, and Plate II, Figures 5 and 6. 
