342 THE CANADIAN ENTOMOLOGIST 



tip; middle and hind femora each with a small bristle close to the 

 apex; tibiae pale yellow, the posterior pair darkened at tip and with 

 a very slender but rather long bristle below just before the basal 

 third and several other small bristles; middle tibiae with two bristles; 

 fore tarsi yellow, darkened towards the tip, first joint not longer 

 than thick, second joint more than half as long as the tibiae, third a 

 little longer than the fourth, fourth scarcely longer than the fifth; 

 hind tarsi blackened from the tip of the first joint which is shorter 

 than the second. Halters yellow. Wings grayish hyaline, rather 

 narrow at base; fourth vein ending in the apex of the wing; last 

 section of fifth vein three times as long as the cross- vein; veins 

 yellowish brown, costa darker. 



Described from one male taken in Douglas Co., Kansas. Type" 

 in the collection of the University of Kansas. 



This is one of a group of four species which are somewhat re- 

 lated, the antennae being formed about alike in all. The third 

 joint of this species is a little wider in proportion than in the 

 others and the apex more flattened, giving it a quadrate appear- 

 ance, and the arista is short and blunt (if it has not been broken 

 oft"). In frontalis Loew the arista is slender and tapers to a point; 

 in vegetiis Wheeler it terminates in a very small lamel, while in 

 inofnattis, n. sp., it is gradually thickened but still ends in a point. 

 In frontalis the fourth joint of the fore tarsi is longer than the third, 

 in vegetiis the joints of fore tarsi are of decreasing length from the 

 second to the fifth, in ahbreviatus the third is longer than the fourth 

 but the fifth is not much shorter than the fourth, while in inornatus 

 the third and fourth are^of nearly equal length, and the fifth is dis- 

 tinctly shorter. 



THE SPECIES OF ARGYNNIS IN AMERICA. 



BY HENRY SKINNER, PHILADELPHIA. 



Recently I received a letter from Mr. Charles Oberthiir, of 

 France, in which he says: "In the European collections there is a 

 great perturbation and confusion in the knowledge and determina- 

 tion of the American species of the genus Argynnis. The light 

 is very desirable but hard to obtain." The European entomolo- 

 gists are not alone in finding our species extremely difficult, as 



October, 1917 



