30 B. C. ENTOMOLOGICAL SOCIETY 



Columbia, the type locality being given as the Fraser River. There is 

 considerable variation in the amount of silver on the spots underneath, 

 typically the marginal row of triangular spots, are well silvered with the 

 remainder of the spots straw yellow, but in many cases the amount of 

 silver on this outside row are greatly reduced, while occasionally, on 

 the other hand, nearly all the spots are silvered. 



7. A. hydaspe race sakuntula Skin. This race was described in 

 1911 partly from material taken at Ainsworth and Kaslo. It is not quite 

 so heavily marked on the upper side as rhodope but underneath the 

 spots are entirely unsilvered, all being of a yellov^- colour. In addition 

 to the above localities, I have the species from Rossland. It is evi- 

 dently a high altitude species. 



8. A. nevadensis Edw. This species, together with meadii, 

 edwardsi and snyderi belong to a distinct group, which have the spots 

 elongated and very heavily silvered and with a green suffusion on under- 

 side of secondaries. It is rather uncommon in B. C, as Vernon and 

 Princeton are the only localities I have seen it from, althoitgh in some 

 parts of Eastern California it is one of the commonest species of this 

 genus. 



9. A. nevadensis race meadi Edw. This form that we take in 

 B. C. and through the Rocky Mountains to Calgary has never been 

 satisfactorily placed. Some years ago the late Wolley Dod sent a series 

 to Dr. Skinner who, in returning them, said: "They are certainly not 

 edwardsii nor are they true nevadensis, nor are they exactly like the 

 Colorado meadi, but they come nearest to meadi." This form occurs at 

 Princeton, Similkameen, Armstrong and Vernon, and if some enter- 

 prising student in any of those districts would take upon himself the 

 task of rearing this species from the egg, and make careful notes of all 

 the larval stages, it would go far, I am sure, towards solving Ihis problem. 

 Personally, I think it is a distinct geographical race of meadi, which 

 latter is typical in the mountains of Colorado. 



10. A. platina Skin. This belongs to the halcyone-coronis group. 

 The late Wolley Dod never quite satisfactorily separated this group, 

 although he had quite a nice series for comparison; he also had speci- 

 mens from Idaho (one of the type localities) and from Utah. The 

 trouble is that some species that are found hundreds of miles from their 

 nimotypical locality are subject to changes of colouration of the under- 

 side of secondaries, and also in the black markings of the upper-side, 

 which may be markedly heavier or again may be somewhat reduced. 

 These differences in colouration and maculation are probably due to a 

 change of food plant and to climatic conditions. 



So far this, species has only been recorded from Osoyoos, but Wolley 

 Dod took a pair at Brisco, B. C, about 35 miles below Windermere, 

 which are probably referable to this species. I did not possess a speci- 



