54 



cidedly towards glaucus and doubtless the structural characters of 

 the $ genitalia show similar affinities as Rothschild & Jordan have 

 referred the race to glaucus rather than to rutulus. We might note 

 that we have a specimen of typical rutulus as well as several of 

 canadensis from Chatanika, Alaska, proving that both species occur 

 in the far north; our Alaskan rutulus can hardly be distinguished 

 from Californian specimens although the marginal yellow lunules 

 are considerably reduced which may or may not be a racial char- 

 acter; it differs markedly from canadensis in its larger size, almost 

 entire lack of orange submarginal shading on underside and in hav- 

 ing the discal black dash on the underside of the secondaries sprinkled 

 with blue scales. We figure both sides of the $ canadensis from 

 Alaska. 



P. aliaska Scud. (PI. IV, Fig. 2). 



Verity has made aliaska synonymous with kamtschadalis, fol- 

 lowing Holland's figure (Butt. Book PI. 41, Fig. 1) and redescribed 

 the true aliaska as machaon var. joannisi from Numato, Alaska, one 

 of the type localities of aliaska. There is no doubt from Scudder's 

 original description that the form to which he applied the name 

 aliaska is what Verity has redescribed ; whether Holland's figured 

 specimen really came from Alaska or not is an interesting point for 

 collectors to clear up; if it be correct we would then have two dis- 

 tinct forms of machaon in our northern fauna differing in the width 

 of the black submarginal band of secondaries; the few authentic 

 specimens we personally have seen have all been of the form aliaska; 

 we figure one of these from Rampart House as Verity's work is not 

 very accessible to American entomologists. 



PARNASSIIDAE 



P. smintheus Dbldy. & Hew. (PI. V. Figs. 1-6). 



Considerable misconception exists concerning the typical form 

 of this species ; Edwards and other authors have treated the Color- 

 ado form, such as is figured in Butt. N. Am. I, PI. II, as the nimo- 

 typical race. We find however that the types of smintheus (3 $ , 

 1 9 in the British Museum) were collected by Lord Derby in the 

 Canadian Rocky Mountains, and Sir Geo. Hampson, who has been 

 kind enough to examine them for us, writes that 'it is the ordin- 

 ary Canadian Rockies form found at Laggan and Banff', i. e. the 



