124 Journal New York Entomological Society. [Vol. vl 



Cocoon elliptical dark brown, single, formed at the surface of the 

 ground. Single brooded. This is the commonest of the oak feeding 

 nematids on Long Island, N. Y. 



Hemichroa fraternalis Norton. 



$ described by Norton (Trans. Am. Ent. Soc, IV, 81). 



9 black and rufous. Head black ; prothorax pale, whitish, interior 

 lobe of mesothorax and upper half of pleura shaded with brown ; abdo- 

 men largely pale brown. All the segments above broadly banded with 

 black and narrowly so below. Legs luteous, femora and tibia lined with 

 black. Wings hyaline, nervures black, costa and stigma luteous. 

 Length, 9 mm. Texas, New York, Massachusetts. A perfectly dis- 

 tinct species, not nearly allied to H. albidovariata. The larva lives on 

 the young leaves of the white oak in May and early June, solitary. 

 Each larva eats away the leaf from the midrib or a large vein and uses 

 the vein as a perch somewhat in the manner of the young Liminitis 

 They hold on by the thoracic feet and thresh the body around violently 

 when disturbed. There are probably five larval stages. 



Stage I. — Head rounded, dull, dusky, eye black; width .4 mm. 

 Body annulate, sordid grayish green, uniform with short black points. 

 A dark line at base of thoracic feet. 



Stage II. — Head .6 mm., sordid whitish, gray posteriorly, eye black; 

 body slate gray, whitish below the spiracles. 



Stage III. — Head small, leaden black, width .9 mm. Segments 

 6-annulate, with black points on the second and fourth. Body slate 

 gray, more or less whitish subventrally below the spiracles, a dusky 

 shade along subventral folds. Thoracic feet largely black, abdominal 

 ones small, on joints 6-12, 13. Venter waxy grayish white. 



Stage IV. — Head sordid leaden, clypeus and back of head nearly 

 black; antenna? and eye black ; width 1.3 mm. Dorsum leaden black,, 

 somewhat broadly greenish centrally except in the incisures, below the 

 spiracles nearly white, the subventral folds marked in blackish, forming 

 a double row of dashes. Thoracic feet largely black, abdominal ones 

 pale. Black points on second and fourth annulets small. Later the 

 larva becomes more greenish with growth. 



Stage V.- — Head black, the face pale and vertex gray ; or a light 

 fleshy brown; width 1.6-1.8 mm. (#9). Body sordid greenish gray, 

 white subventrally, a lateral leaden gray shade band touching the stig- 

 matal line; dusky marks on the subventral folds; points small, black. 

 Thoracic feet pale, black at base; a trace of white bloom on head. In 

 some the subventral region is scarcely contrasted and the larva appears 



