Noctuidae 



ramosula, and which is delineated on Plate XX, Fig. 29. It is 

 very common in Pennsylvania. 



Genus PYROPHILA Hu'bner 



This genus is better represented in Europe and Asia than in 

 America. 



(1) Pyrophila glabella Morrison, Plate XX, Fig. 32, S. 

 (The Gray Pyrophila.) 



Not nearly as common as the next species, but widely distrib- 

 uted throughout the United States and Canada. 



(2) Pyrophila pyramidoides Guenee, Plate XX, Fig. 30, S . 

 (The American Copper Underwing.) 



This insect, which is one of the commonest moths in the 

 Atlantic Subregion, and ranges westward as far as Colorado, 

 conceals itself under the loose bark of trees during the daytime, 

 and comes forth at night. It sometimes fairly swarms at sugar, 

 and becomes a veritable 

 pest to the collector, 

 who desires rarer things. 

 The caterpillar does a 

 good deal of damage to 

 vegetation. I have re- 

 cently been annoyed by 

 the ravages inflicted by 

 the larvae in the spring of the year upon the foliage of imported 

 rhododendrons, for which they seem to have a partiality in my 

 garden. They feed freely on a great variety of shrubs and 

 herbaceous plants. 



(3) Pyrophila tragopoginis Linnaeus, Plate XX, Fig. 31, $ . 

 (The Mouse-colored Pyrophila.)' 



Syn. repressus Grote. 



A circumpolar species ranging throughout the temperate zone. 



Genus HELIOTROPHA Lederer 



The genus is represented in the Atlantic States by a species, 

 of which alight and a dark form occur. The typical, or light, 

 form, was named reniformis by Grote, and is depicted on 

 Plate XX, Fig. ^, while the dark form,' named atra by the same 

 author, is shown on the same plate by Figure 34. 



Fig. 96. Larva of Pyrophila pyramidoides. 

 (After Riley.) 



