Engel : Lepidoptera of Western Pennsylvania. 133 



6418. Lyonetia speculella Clemens. 



Pittsburgh, August 29-October 3 (Marloff, Engel). Rare. In 

 woods. 

 6421. Phyllocnistis vitifoliella Chambers. 



Pittsburgh, September i6-October 30. Hibernating specimens 

 November to April (Engel). Common. 

 6435. Tischeria citrinipennella Clemens. 



May i8-June 14 ; August 7-20. Common at light. 

 . Argjrresthia oreasella Clemens. 



July 4-28. Common on the foliage of hawthorn. 



6456. Argyresthia apicimaculella Chambers. 

 Pittsburgh, June 15-July 16 (Marloff, Engel). 



6457. Argyresthia austerella Zeller. 

 June 14-July 8. Common. 



. Argyresthia undulatella Chambers. 



May 29-June 24. Common. 

 6471. Acrolepia incertella Chambers. 



Pittsburgh, April 15-20 (Engel, Marloff); New Brighton, April 

 22, July 23 (Merrick, Engel). Rare. At rest on trees in forests. 



6473. Scardia tessulatella Zeller. 



Pittsburgh, June 21-July 26 (Engel, Marloff); New Brighton, 

 July 2-August 29 (Merrick). Rare. At light in the woods. 



6474. Scardia anatomella Grote. 



May 27-July 4. Common at light in forests. 



. Scardia approximatella Dietz. 



June 30-July 27. Common at light and at rest on trees in 

 woods. 



6476. Xylestia pruniramiella Clemens. 

 June 24-x'\.ugust 9. Common. 



6477. Paraclemensia acerifoliella Fitch. 



Pittsburgh, May 20-30 (Marloff, Engel). Rare. On the foliage 

 of bushes on waste lands. 

 6481. Isocorypha mediostriatella Clemens. 



Pittsburgh, July 21-August 19 (Engel, Marloff). Rare. 

 6484. Incurvaria russatella Clemens. 



New Brighton, July 9-23 (Merrick, Engel); Pittsburgh, June 13- 

 23 (Marloff). Several specimens in Carnegie Museum. 

 6487. Tineola bisselliella Hummel. 



New Brighton, July 9-23 (Merrick); Pittsburgh, August 12 (Kahl). 



