131 



proved congeneric; Bethune-Baker has already ably criticised this 

 failing of Scudder's in his otherwise excellent sketch (Ent. Rec. 

 XXVI, p. 133, 1914). 



Instead of the generic name Thymelicus as used by Dyar, we 

 have available Hedonc Scud, (type, brettus Bdv. & Lee), Limochores 

 Scud, (type, manataaqua Scud.) or Pyrrhosidia Scud, (type, mystic 

 Scud.). For the present however we think it advisable to place all 

 these species in the genus Polites Scud, (type, peckius Kirb.) which 

 is separated by Mabille and Dyar on the strength of vein 3 of primar- 

 ies being further from the apex of cell ; we doubt the value of the 

 position of this vein as a good generic character; it seems variable 

 and needs further careful study; peckius in other respects seems but 

 a further modification of mystic. 



Polites dacotah Edw. 



An examination of the type $ of this species labelled 'napa = 

 dacotah, type, Colo.' in the Edwards' Collection shows that the species 

 has been wrongly sunk as a synonym of napa Edw. Dacotah is in 

 reality the western form of mystic which has been recently described 

 by Skinner as pallida; the original description of dacotah appears to 

 bear out this reference as it mentions the 'pale fuscous hind margins 

 of equal breadth' not dentate as in napa, and makes no mention of 

 the black marginal shading on the underside of primaries above anal 

 angle, usually quite distinct in napa but wanting in this form of mys- 

 tic. The black scaling beyond the stigma is not mentioned, it is true, 

 but the stigma is characterized as broad and Edwards might easily 

 have regarded this scaling as part of the stigma itself. We see no 

 grounds therefore to doubt that the specimen so labelled in the Ed- 

 wards' Collection is the true type. 



P. sonora Scud. 



For the species heretofore known as sylvanoides Bdv. we must 

 now use the name sonora Scud., the type coming from the Sierra 

 Nevada Mts. (Hy. Edwards). Siris Edw., described from Puget 

 Sound, Wash, (the original description gives Mt. Hood as type local- 

 ity, but Morrison later (Pap. Ill 43) corrects this) we consider a 

 synonym. The Rocky Mt. form with white spots on the underside 

 of secondaries has been named utahensis by Skinner. Wright figures 

 the species as sylvanoides (1. c. PI. 31, Fig. 425). 



