46 Journal New York Entomological Society. [Voi.. xv. 



on patch of clover ( Trifolium wormskjoldi) at the margin of the stream. 

 This species has been previously found on the central Sierras in the 

 vicinity of Lake Tahoe and the Yosemite Valley. If this is a Transi- 

 tion or Boreal species the present station would indicate a very inter- 

 esting case of interrupted distribution. Specimens from the two 

 regions have not been compared, so there may be slight differences as 

 the result of the isolation afforded. We are under the impression that 

 Mr. Herr obtained this or a closely similar species on San Jacinto 

 Peak several years ago. The San Bernardino and San Jacinto moun- 

 tains are only about fifteen miles apart in an air line, but the deep San 

 Gorgonio Pass of Lower Austral zone lies between, which would seem 

 to be a pretty effectual barrier to small butterflies. Extremely inter- 

 esting results await the careful investigation of all these mountain 

 groups. 



35. Epidemia helloides (Boisduval) Scudder. 



Coppers were rare in the region, and specimens were taken only 

 at the margin of the Santa Ana, at the confluence of Fish Creek with 

 it, 6,500 feet. Here 5 males were secured June 20—22, 1905. 



36. Cupido fuUa (Edwards) Scudder. 



A fairly common species, often flying about a lupine (^Lupinus 

 albicaulus'), as well as wet sandy stream -margins. Fish Creek, 6,500- 

 6,700 feet, June 13-30, 3 ??, 3 cTcJ' ; South Fork, Santa Ana, 

 6,200-6,700 feet, July i and 2, 4 'S'S', 2 $ $ ; cienega at head of 

 South Fork, 8,500 feet, June 28, i d^. 



37. Cupido hilda, new species. 



Male. — Expands 25-28 mm. Upper sides of primaries bright blue with a very 

 wide black marginal border, becoming much broader towards the costal edge, where 

 it occupies about half the distance from apex to discal spot ; discal spot reniform, 

 black. Secondaries almost entirely blue above, except for a narrower marginal black 

 border, with a few black spots in anal angle. On the under sides the markings of the 

 primaries are very heavy and pronounced : general color ashy gray ; a black discal 

 spot large and conspicuous, as are the other spots ; next a row of round spots, form- 

 ing an angled semicircle around the discal spot ; at the end of this series are two 

 small black spots placed close together and at right angles to the series ; next a row 

 of less distinct spots curved towards the costa and with two small spots on the inner 

 margin at the end of the series ; next a series of obscure patches forming a broken 

 line ; a narrow fimbriate marginal line. Secondaries below with very pronounced 

 spots occupying nearly the same relative positions as those of the primaries, except 

 that the inner three of the middle row enclose red spots and are sagittal in shape. 

 Fringes of all wings white. Body grayish white. 



Female. — Expands 25-32 mm. Upper sides of primaries blackish brown vary- 

 ing to red-brown ; on the outer half of the wing a bright band of red fading ou bet- 



