THE CANADIA.N ENTOMOLOGIST. 159 



Figure 5, the Nepigon Forester, Parasemia plant aginis, L., b. Scud- 

 deri, Pack. The form here shown is the extremely constant and invariable 

 one which may be taken in hundreds at Nepigon, north of Lake Superior. 

 This was described by Henry Edwards as Nemeophila Selwynii ; but, as 

 Mr. H. H. Lyman has pointed out, it is most probably the same insect as 

 was described by Packard under the name of N. Scudderi. The stem- 

 species P. plantaginis is remarkable for its extreme variability, as may be 

 seen in a large series of specimens taken at any place in the foothills of 

 the PvOcky Mountains ; but the Nepigon form is remarkably constant in 

 all its markings : and, although an occasional specimen taken in the West 

 may resemble the Nepigon form very much, there is always one small but 

 seemingly good character by which the specimens may be separated, viz.: 

 a short orange stripe at the base and extending about one-fifth of the 

 length up the edge of the costa. This has always been entirely wanting 

 on all specimens which I have taken at Nepigon (some hundreds) or have 



bred from the egg. 



Figure 6 and 6a, the "White Pine Butterfly" (of British Columbia), 

 Neophasia menapia, Felder. Periodically the Douglas Spruces in the 

 coast regions of British Columbia, and the Bull Pines, Pinus ponderosa, of 

 the interior of that province, are severely injured by the white-striped, dark 

 green caterpillars of the beautiful Fierid here illustrated (female, upper and 

 lower side). The male butterfly is much whiter and does not show the 

 rich markings on the veins. The eggs are most beautiful objects, resem- 

 bling minute emerald green Florence flasks, vertically lined with delicate 

 lines and with a beaded rim of porcelain-white knobs. The eggs are laid 

 in rows of from five to fifteen along the leaves, at an angle pointing to the 

 tip of the leaf, and cemented together. Eggs laid in the Okanagan Valley 

 of British Columbia at the end of July remained as eggs all through the 

 winter and hatched from the 5th to the i2ih April the following spring at 

 Ottawa and in West Virginia. In some seasons, as last year, this butterfly 

 is enormously abundant in British Columbia during August, and the dead 

 insects may be seen in myriads, floating on the sea around Vancouver 

 Island. The females are always remarkably less abundant than the males. 



Figure 7 represents the common noctuid, Nodua bicarnea, Gn. 

 This figure is not so successful as the others on the plate, the markings 

 being less distinct than might have been expected from the specimen. 



