40 THE CANADIAN ENTOMOLOGIST. 



Ilhislrations. — Better tlian the best description is a good illustration, 

 and it therefore seems well to picture the four species which have been 

 confused. Fig. i in the plate represents irus, as that species is ordinarily 

 recognized. Godart's original description is too vague and unsatisfactory 

 to enable anyone to identify irtiz with certainty. That author himself was 

 not sure that his type (as it would be called to-day) came from America. 

 We rely on Dr. ]>oisduval, who says tliat he saw Godart's specimen, and 

 that it represents the species figured by Abbot (in the Histoire Generale 

 et Iconographie des Lepidopteres et des Chenilles de I'Amerique Septen- 

 trionale, 1833)- Abbott's figures are not exceptionally good, but the 

 species intended is undoubtedly the one which has subsequently been 

 known by Godart's name. The specimen here figured was bred from the 

 egg, at Albany, N. Y. It is a 9- 'I'be species is illustrated in colours in 

 Scudder's " Butterfiies of the Eastern U. S. and Canada," Holland's 

 " Butterfly Ikjok '' and Cmnstock's " How to Know the Butterflies." 



Tig. 2 is the Ilen/ici oi ViVoiQ and Robinson from a homotype bred 

 from the egg at Albany, N. Y. It also is a 9 • 



Fig. 3 is a 7 '^f""^^ '"'a- 4 ^ (^ polios (the miscalled Henrici V){ Strccker 

 and others). 



Fig. 5 is a 9 homotype of iMo^si collected in Colorado. Though 

 imperfect, the specimen corresponds to the type specimen more closely 

 than any other individual of the species which I have seen. 'I'he " very 

 large and sharp angle at the median nerve " is about as in the type, and it 

 is hoped that this illustration will illumine Hy. Edwards' description. The 

 large, chestnut-brown spots occupying the interspaces of the secondaries 

 from the margin inward nearly to the "black lunules," effect a photographic 

 plate but little, and therefore appear almost black in the print. Speci- 

 men in the collection of the author. 



Fig. 6 is a ^ Mossi {iwiw \.\\t collection of Jacob Doll), exhibiting 

 the greatest departure 'from the typical design which I have seen. The 

 varietal differences can be seen at a glance, and need not be discussed 

 here. 



All figures represent the under surface x r.25. 



Distribution. — Polios is distributed widely over the continent. 

 Along the Atlantic Coast it is found at Lakewood. N. J. (Watson, Sunder- 

 land, Cook); Lakehurst, N. J. (Davis, Watson, Brehme, Cook); Jamesburg, 

 N. J- (Watson, one specimen) ; Medford, Mass. (John Rodgers) ; Milton, 



