TIIK SI'KKAI) OK A lUIITKUFLY IN A NKW KK(;iON. 1187 



conio. as we slinll sec. The liutterHy ii|ipi'iire<l also ahout St. Louis this 

 year ami at many localities in Alabama, Hiicii aw Marion and Sclma, 

 tliiiiit;li Mr. Uilcv did not see it at Moliilc on a visit there. 



In l^Nt'it liail ad\aneed in the north, accortliiig to Mr. Saunders, to 

 Manitoiilin Island, near the northeastern end of Lake Huron, to theSaidt 

 Ste. Marie, to Hoehestcr in the southeastern corner of Minnesota, to West 

 Point, Nebraska, to Ijnwrenee, Kansas, in March and to Manhattan in the 

 same state. l)r. \V. S. Newlon writes that it appeared at ( )s\vego in 

 the southeastern corner of the state on .Iniic 10. 1^7'.', tint ]n- is not quite 

 positive aiiout the year. It is also reported tiiis year from .\tlanta, (Ja., in 

 July. It must have l)ccn there the year previous. 



In ISi^l we have few reports of its extension, but it was tliis year tliat 

 it l)ecamc common on Kccweenaw Point, at Calumet, Mich., though the 

 postmaster at Kasson says that it did not appear in that place until a year 

 or two later. It was as late as Au<rust 'A that Mr. (i. M. Dodtre first saw 

 it at (ilencoe, Dodge Co., Nebraska, not fifty miles from Omaha and at 

 about the same time his brother, C. F. Dodge, found Fremont "overrun" 

 with them. Not until this year did it make its appearance at Saliiia, Kan., 

 becoming common in 18X2. It is also reported as appearing in IJ^SI at 

 Bastrop, Texas. 



In ISS:?. according to E. .\. Dodge, it was already very abundant at 

 Central City, Merrick Co., in the middle of the eastern. half of Nebraska. 



In 1883 we have several very interesting extensions. Mr. Walter Hay- 

 don, returning to England from Moose Factory at the extreme southern end 

 of Hudson Bav, took with him an interesting collection of insects, among 

 which Mr. J. .Tenner Weir fonn<l a single pair of P. rapac, which were all 

 he had taken therein a residence of five and a half years. Presumabl}' the 

 insect had arrived shortly before his departure. It was only in this year, 

 that it appeared at Minneapolis, Minn., yet it was now that Capt. Gamble 

 CJeddestook it in Manitoba along the line of the Canadian Pacific Railway, 

 at least as far as Brandon, about longitude 100°. Further, Mr. Charles 

 S. Brown of Ludden, Dickey Co., Dakota, writes that he reached that 

 coimtrv in 1HM8 — one of the first settlers there — and noticed then a few 

 specimens of the butterfly which has since become common. It is evident 

 that it has nearly outrun the tide of civilization. 



But even this record is outstrip|)cd by the report that it actually reached 

 the Kocky mountains in Montana in 1884. Two correspondents have an- 

 swered mv inr|uirie8 fi-om there ; one has not seen it and says it must be 

 rare or local if there at all ; he has occasionally noticed a Pieris, but took 

 it to be P. olcracea ; the other says he saw none in 1888, one in 1884 and 

 another in 1886. North of the boundary the insect has not yet reached 

 Kegina. 



A few words onlv will suffice for all later statistics. In 18H.T it is 



