ORCHARD INJURY BY HICKORY TIGER-MOTH. 7 



Fagus grandifolia Ehrh. Beech. (Beutenmiiller 1890.) 



Fraxinus sp. Ash. (Harris 1841.) 



Hamamelis virginica L. Witch-hazel. (Beutenmiiller 1890.) 



Juglans cinerea L. Butternut. 1 (Fitch 1855.) 



Juglans nigra L. Black walnut. 1 (Fitch 1855.) 



Juglans regia L. English walnut. 1 



Juglans sieboldia na Maxim. Japanese walnut. 1 



Larix decidua Mill. Tamarack. (Fitch, according to Felt, 1905.) 



Larix laricina (Du Roi). Larch. (Fitch, according to Felt, 1905.) 



Ostrya virginiana (Mill.). Hop hornbeam. 1 



Primus serotina Ehrh. Black cherry. 1 (Beutenmiiller 1890.) 



Prunus virginica L. Chokecherry. (Beutenmiiller 1890.) 



Primus cerasus. Sour cherry. (Lintner 1891.) 



Plalanus occidentalis L. Sycamore. (Beutenmuller 1890.) 



Plat an us orientalis L. Sycamore. (Beutenmiiller 1890.) 



Pyrus communis L. Pear. 1 (Lintner 1891.) 



Pyrus malus L. Apple. 1 (Beutenmuller 1890.) 



Quercus alba L. White oak. (Beutenmuller 1890.) 



Quercus palustris Muench. Pin oak. (Beutenmuller 1890.) 



Quercus rubra L. Red oak. (Beutenmuller 1890.) 



Rhus sp. Sumach. (Fitch 1855.) 



Rosa sp. 1 



Rubus sp. Raspberry. (Eliot and Soule 1902.) 



Tilia americana L. Basswood. Beutenmuller 1890.) 



Tilia alba. White linden. (Beutenmuller 1890.) 



Tilia europea. European linden. (Beutenmiiller 1890.) 



Salix sp. Willow. (Eliot and Soule 1902.) 



Ulmus sp. Elm. (Harris 1841.) 



Ulmus americana L. American elm. (Beutenmiiller 1890.) 



Ulmus campestris L. English elm. (Beutenmuller 1890.) 



Ulmus fulva Michx. Slippery elm. (Fitch 1855.) 



SEASONAL HISTORY. 



EMERGENCE OF MOTHS. 



There is one generation annually. The insect pupates in the fall, 

 hibernates in the pupa stage, and the moths emerge in early summer. 

 During the season of 1916 the earliest emergence from a lot of 36 

 cocoons was June 9 and the latest June 24, the majority emerging 

 from June 12 to 15, inclusive. No adults were reared in either of the 

 two previous seasons, but in 1914 larvae were found in the field as 

 early as June 18, indicating that moths must have emerged as early 

 as June 1. In 1915 the larvae appeared in the field about the same 

 time as in 1916. The data relating to emergence of moths in 1916 

 are given in Table II. 



1 Confirmed by writer. 



