Engel : Lepidoptera of Western Pennsylvania. 57 



loff ). The imago is quite common some years and has the same 

 habits as the preceding species. 

 2133. Cucullia Cinderella Smith. 



Pittsburgh, July 20, 1899, taken on Saponai'ia (Engel). In Engel 

 Collection, Carnegie Museum. 



2149. Sphida obliqua Walker. 



New Brighton, May 29 (Merrick). 



2150. Nonagria oblonga Grote. 



New Brighton, September 26 (Merrick). 

 2158. Achatodes zeae Harris. 



July 3-August 2. Common. The larva is common in the new 

 growth of elder. 



2 16 1. Gortyna velata Walker. 



June i2-July 17. Common. The moth frequents the blossoms of 

 milkweed after dusk. 



2162. Gortyna nictitans Borkhausen. 



August i2-September 14. Common and variable. 

 2166. Gortyna stramentosa Guenee. 



New Brighton, September 19-23. Two specimens (Merrick). 

 2172. Papaipema inquaesita Grote & Robinson. 



New Brighton, September 3-October 6 (Merrick) ; Wilmerding 

 (Zahrobsky). 

 2174. Papaipema rigida Grote. 



New Brighton, September 26-October 10 (Merrick) ; Pittsburgh, 

 October 6 (Friday) ; Wilmerding, two specimens (Foerster). 

 ■ . Papaipema merriccata Bird. 



September 15-October 19. Common. The larva feeds in the 

 roots of May-apple. 



2178. Papaipema purpurifascia Grote & Robinson. 



September i6-October 11. Rare. Foodplant : columbine. A 

 smaller form, bred from loosestrife {Ludwigia) by Mr. Bird, is com- 

 moner. Mr. Krautwurm reared this form from branches of burdock. 



2179. Papaipema nitela Guenee. 



September 3-October 24. This and the form nebris Guenee are 

 very common. The preferred foodplant is Ambrosia trifida Linnseus, 

 but it infests numerous other plants. The writer has observed the 

 larva in new growth of ornamental shrubs. 

 . Papaipema eupatorii Lyman. 



New Brighton, September 15-October 5 (Merrick, Bird, Engel). 



