ARGYNNIS. By Dr. Th. Lehmann. 415 



upper surface; the marginal lines on the forewings are broacUy confluent, leaving no pale space between, 

 and the subniarginal luuules as well as the other dark markings somewhat heavier. Underneath exactly as 

 the (J, the subniarginal band, if anything, even less distinct. Expanse: (^ 2,2", $ 2,4 ". The early stages have 

 not been studied. The tjqws came from Mendocino in California. 



A. halcyone Edir. (87 c). Forewings produced and narrower than in the preceding species. ,5' above halcyone. 

 fulvous, inclining to yellowish, very slightly obscured at base, the black markings sharp and distinct; marginal 

 lines separate, leaving g. narrow fulvous space. The median spots on the hindwings confluent so as to form a _ 



continuous band. Otherwise the markings of the upper surface corresi^ond to those of the allied species, 

 holding about the middle between hesperis and monticola. Under surface of the forewings pale reddish-yellow, 

 obscured at the base, pale buff at the end of the cell and on the costal margin before the apex. The subapical 

 and upper marginal spots pale, generally very little silvered. The hindwings have the inner two thirds deep red- 

 brown, clouded with buff. Outer margin likewif-e dark bro\\n, paler at the anal angle. Subniarginal band buff, 

 somewhat invaded by the basal shade. All the spots well silvered, as o.lso the costa near base and the abdo- 

 minal margin. $ considerably larger than ,^, with the black markings heavier. On the under surface of the 

 forewings the base and inner margin suffused with red. On the hindwings the marginal band less distinct 

 than in cJ, sometimes shaded with olive-brown. Silver spots large. Expanse: ^ 2,5 — ^2,6", $ 3 — 3,3". Early 

 stages not known, halcyone, has been regarded by some authors as a variety of aphrodite; it was first des- 

 cribed from 2 (^(J captured by Dr. Velie in Colorado; the $$ were discovered very much later by Morrison 

 in southern Colorado. The species is also mentioned from the adjoining districts of the State of Utah, but has 

 always been rare iji collections. — A. arizonensis is the name of a southern form from Arizona, distinguished arizonensis. 

 from the Colorado form by the much smaller silvery spots on the underside of the hindwings in both sexes, 

 and the shorter subcostal tuft of hair in the (J. 



A. platina Skinner (86 c) takes in east<^rn Utah the place of the closely allied A. coronis; of which it plathui. 

 is possibly only a variety. (J above rather pale buff to brown-yellow; the black marldngs heavy in the 

 slightly obscured basaJ half, in the distal half, however, relatively narrow and thin; especially the marginal 

 lines very fine, and the roundish postdiscai spots feebly developed. Under surface of the forewings rosy 

 pink in the inner half, otherwise as in coronis, the subapical and upper marginal spots distinctly silvered. 

 On the hindwings the spots large, very brightly silvered, strongly contrasting with the greenish -grey ground. 

 Between the two outer macular rows a rather broPid, pale buff subniarginal band standing out clearly from 

 the ground-colour. $ characterized by the reddish-brown colour of the under surface of the hindwings. Found 

 in Idaho and Utah. 



A. chitone Edw. (87 c), from California and the adjacent States, has in both sexes the upper surface chitonc. 

 duff fulvous, obscured by brown at the base, with moderately heavy black markings. Under surface of the fore- 

 wings from base to outer half pale yellowish-fulvous, the apical area and the nervules shaded with deep ferrugi- 

 nous. Marginal spots buff, without any silver. Under surface : Hindwings of the cj pale ochreous-brown, clou- 

 ded with buff; subniarginal band broad, clear buff; outer margin brown. All the spots small and imperfectly 

 silvered. $ very much like the (J, but always with the outer row of spots well silvered, the others only 

 exceptionally with a few silvery scales. Expanse: 2,25 — 2,5". California, Ai'izona, Nevada and Utah. 



A. coronis Behr ($ = nevadensis Edw.) (85 e, 86 a). The (^ on the upper surface j-ellowish or reddish- coronis. 

 brown, the base slightly obscured with fuscous. The dark markings, especially in the distal half, not heavy, 

 but very distinct. Mesial band rather heavy on forewing, light on hindwing. Under surface of the forewings 

 buff, varying to rufous, with the basal area and median nervules orange fulvous. Subapical and subniar- 

 ginal spots more or less perfectly silvered. Hindwings brown from base to outer third, mottled A\"ith reddish, 

 in the discal area with buff; subniarginal band narrow, clearly defined, pale yellowish-buff. All the spots 

 large, egg-shaped and, like the costal margin at the base and the abdominal margin, well silvered. $ somewhat 

 paler than ,j', with the markings heavier, and the basal area more broadly obscured; the marginal lines 

 confluent on the forewings, the spots enclosed by the subniarginal lunules nearly white. Under surface 

 very much as in ^, only more brownish on the inner half of the hindwings. The colour of the under surface 

 is highly subject to variation: Whereas in southern California (near Gilroy) normal specimens are the rule, 

 specimens from Mount Shasta (in the North), from Washington (Judith Mountain, Morrison coll.) and Alberta 

 (Geddes) are much lighter, the SS cinnamon-red, the $9 pale fawn colour. One ^ from Nevada captured 

 by Morrison, has the underside decidedly yellow, mottled with pale grt'j', while another ^ from Utah (Netj- 

 moegen) has almost no mottling, but is nearly clear yellow over the whole hindwing and all of the forewing, 

 except just at the base. [TheT_$ figured by Edwards in Vol. I of his Work on North American Rhopalo- 



