Engel : Lepidoptera of Western Pennsylvania. 47 



1088. Platysenta videns Guenee. 



May lo-June i ; August 25-Septeniber 2. Common. At light 

 and sugar. 



1092. Balsa malana Fitch. 



May 5-31 ; June 25-July8. Common. 



1093. Balsa tristrigella Walker. 



May 24-Tune 20. Common in thickets at rest on saplings and 

 wild grape-vines. 



1094. Balsa labecula Grote. 



New Brighton, May i8-June 3 (Merrick) ; Pittsburgh, May 12- 

 29 (Engel & Marloff). 

 1 100. Anorthodes prima Smith. 



New Brighton, June 2, 1901 (Merrick) ; Swissvale (Knechtel). 

 Prof. Smith determined this species and remarked it might probably 

 prove to be Caradrina tarda Guenee. 

 1 109. Caradrina miranda Grote. 



May i2-June 7 ; July 23-August 17. Common. The larva prob- 

 ably feeds on grasses. I have found the cocoon attached to fence-rails 

 lying about in pasture-fields. 

 1 1 1 5. Perigea xanthioides Guenee. 



May 26-July 26 ; August i6-October 20. Common. 

 1 1 1 7. Perigea vecors Guenee. 



April 30-May 23 ; July 20-October 20. Common. 

 1 1 19. Perigea sutor Guenee. 



Pittsburgh, October 12-20 (Engel & Marloff). 

 1 136. Oligia festivoides Guenee. 



May 24-July 17. Common locally. 

 1 138. Oligia versicolor Grote. 



New Brighton, June 6-July 19 (Merrick & Engel). 

 1 141. Oligia grata Hubner. 



May 2-June 15 ; August 2-October 17. Common. 



1 1 58. Hadena modica Guenee. 



June 3-25 ; July 28-August 12. Common. 



1 1 59. Hadena hausta Grote. 



June i-July 7. Rare, but represented in nearly all local collections. 

 Prof. Smith determined this species for Mr. Merrick. It is very 

 similar to Hadenella snbjuncta Smith, figured by Dr. Holland in his 

 Moth Book, Plate XIX, fig. 25. 



