Engel: Lepidopter a of Western Pennsylvania. 103 



4693. Acrobasis betulella Hulst. 



New Brighton, July 5-8 (Merrick). Rare at light. 

 . Acrobasis nebulella Riley. 



Pittsburgh, July 19-August 16 (Engel & Marloff) ; New Brighton, 

 June 30-August 16 (Merrick). Rare. At light in the woods. 

 . Acrobasis Kearfottella Dyar. 



New Brighton, July 12 (Merrick). One specimen. 

 4704. Mineola indigenella Zeller. 



June 2-29 ; July 2-22. Common. 

 . Tacoma nyssaecolella Dyar. 



Pittsburgh, May 29 (Marloff) ; New Brighton, July lo-August 20 

 (Merrick). Rare. At light in woods. 

 . Ambesa busckella Dyar. 



May 24-July 12. Scarce, but generally distributed. 

 4739. Nephopteryx crassifasciella Ragonot. 



New Brighton, July 3, 1906. One specimen (Merrick). 

 4746. Meroptera pravella Grote. 



New Brighton, May 31-July 5 (Merrick). Rare. At light. 

 4748. Meroptera unicolorella Hulst. 



New Brighton, July 5-August 18 (Merrick). Rare. In woods. 

 4751. Salebria nubiferella Ragonot. 



Pittsburgh, May 15-24, two specimens (Marloff). 



4759. Salebria contatella Grote. 



May 25-June 30 ; August 13-27. Common and very variable. 



4760. Salebria celtidella Hulst. 



Pittsburgh, June 22-27, two specimens (Marloff). 

 . Salebria engeli Dyar. 



Pittsburgh, July 10 (Marloff) ; New Brighton, July 31, 1907 

 (Merrick). 

 . Salebria vetustatella Dyar. 



Pittsburgh, May 3-June 12; July 9 (Engel, Marloff). Rare at 

 light. 

 . Immyrla nigrovittella Dyar. 



Pittsburgh, May 12-June 2 (Engel) ; New Brighton, June 17 

 (Merrick). Rare at light. 

 . Cacotherapia flexilinealis Dyar. 



New Brighton, June 22-July 29 (Merrick) ; Pittsburgh, July 2 

 (Marloff). Rare. 



