Engel : Lepidoptera of Western Pennsylvania. 77 



May 15-June II ] July i8-August 16. Common. The larvae feed 

 on numerous deciduous plants. 



3149. Schizura concinna Smith & Abbot. 



May 28-June 12. Common. Foodplants : apple, hawthorn, wild 

 cherry. 



3150. Schizura semirufescens Walker. 



Pittsburgh, July 31 (Marloff), two specimens; New Brighton, July 

 1 4- August 12 (Merrick). The larvae were found on locust. 



31 5 1. Schizura unicornis Smith & Abbot. 



May 12-28; July 22-31. Rare. Foodplants: oak, hickory, 

 wild cherry. 



3153. Schizura badia Packard. 

 Pittsburgh, July 5 (Engel, Krautwurm). 



3154. Schizura leptinoides Grote. 



New Brighton, May 13-July 27 (Merrick) ; Pittsburgh, July 12 

 (Marloff, Krautwurm). Rare. The larva feeds on walnut. 



3155. Hyparpax aurora Smith & Abbot. 



June 30-July 1 2 . Rare. It is represented in most of the collections. 



3160. Cerura occidentalis Lintner. 

 New Brighton, August 2 (Merrick). 



31 61. Harpyia borealis Boisduval. 



April 29-June 25; July 24-August 11. Common. Foodplant : 

 wild cherry. 



3162. Harpyia cinerea Walker. 



May 15 ; July 4-17. Rare, but generally distributed. Foodplants: 

 willow, poplar. 



3165. Fentonia marthesia Cramer. 



New Brighton, June 27-July 18 (Merrick) ; Pittsburgh, June 14-25 ; 

 July 16 (Marloff, Engel, Krautwurm). Foodplant: oak. 



3166. Gluphisia septentrionalis Walker. 



May 13-June 24; August 7-24. Common. Foodplant: poplar. 

 3170. Ellida caniplaga Walker. 



April 24-May 4; July 1-12. Rare. Mr. Krautwurm has reared 

 the larva on linden. 



Family THYATIRID.'F:. 



3173. Habrosyne scripta Gosse. 



New Brighton, June 5, August 16, two specimens (Merrick). 

 3175. Habrosyne rectangulata Ottolengui. 



Pittsburgh, May 20-June 24; August 12 (Engel, Marloff, Friday); 



