OBCHARD INJURY BY HICKORY TIGER-MOTH. 7 



Fagus gra ndifolia Ehrh. Beech. (Beutenmuller 1890.) 



Fraxinus sp. Ash. (Harris 1841.) 



Jlamamclis riryinica L. Witch-hazel. (Beutenmiiller 1890.) 



Juylans cinerca L. Butternut. 1 (Fitch 1855.) 



Juf/lans ni(/ra L. Black walnut. 1 (Fitch 1855.) 



Juglans rcgia L. English walnut. 1 



Juylans sicboldinna Maxim. Japanese walnut. 1 



Larlx dec-id ua Mill. Tamarack. (Fitch, according to Felt, 1905.) 



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



Ostrya virginiana (Mill.). Hop hornbeam. 1 



Primus scrotina Ehrh. Black cherry. 1 (Beutenmuller 1890.) 



Prunus virginica L. Chokecherry. (Beutenmuller 1890.) 



Prunus cerasus. Sour cherry. (Lintner 1891.) 



Platanus occidcntalis L. Sycamore. (Beutenmiiller 1890.) 



Platanus orientalis L. Sycamore. (Beutenmuller 1890.) 



Pyrus com munis L. Pear. 1 (Lintner 1891.) 



Pyrus mains L. Apple. 1 (Beutenmiiller 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. Bass wood. Beutenmuller 1890.) 



Tilia alba. White linden. (BeutenmiilJer 1890.) 



Tilia europea. European linden. (Beutenmuller 1890.) 



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



Ulmus sp. Elm. (Harris 1841.) 



Ulmus americana L. American elm. (Beutenmuller 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 larva? 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. 



