420 ARGYNNIS. By Dr. Th. Lehmann. 



terminal markings. $ very much like cJ, but the markings heavier, standing out very distinctly against the 

 dark ground; the marginal spots enclosed by the lunules very light in colour and relatively large. On the 

 underside the forewngs are suffused with red, very much as in adiante ?. Expanse : $ 1,75 — 2,0", $ 2,0 — 2,15". 

 Its home is Utah, Arizona, Colorado and Montana. 



cUo. A. clio Edic. (87 d) is, after hischojji, one of the most northern representatives of the eurynome group. 



Both sexes have the upper surface more brillant and deeper fulvous than iji eurynome, in the $ paler than 

 in (^, with the markings not very heavy and the l)ase moderately obscured. Terminal border fairly broad, 

 especially in $, the marginal spots enclosed between it and the submarginal lunules, standing out distinctly 

 from the darker ground-colour. As in artonis, the spots on the under surface are entirely devoid of silver. 

 Altogether these two species have so much in common that it is difficult to always distinguish them with any 

 certainty. Expanse: ,^1,8", $1,8 — 1,9". This species or variety is confined to the higher mountains of Montana 

 and Alberta (Elwes, Geddes). 



opis. A. opis Ediv. (87 e) is the form of British Colombia; its size is considerably less than even that of 



clio ;irom eurynome it differs, aside from its inferior size, in the very, pronounced obscuration of the base and 

 abdominal margin on the upper surface in both sexes, and in the heavier markings on a duller ground. With the 

 exception of the species of the Brenthis group, it is the smallest of all American Argynnis. Forewings 

 short and slightly arched ; the lower part of the basal area and the inner margin densely covered with brown 

 hair. In the t^ the under surface of the forewings is very slightly, if at all, tinted with red at the base, and the 

 submarginal spots are nearly obsolete. Hindwings with discal area pale ochreous, faintlj' mottled with reddish; 

 submarginal band indistinctly marked by a faint pale streak. All the spots pale, dull ochraceous. not silvered. 

 $ deeper fidvous, with both wings heavily obscured from base to median band, and all the markings heavier 

 than in i^. Underside of forewings tinted with red throughout, except at apex which is ochraceous. Hind- 

 wings as in ^. Expanse: (^ 1,5", $ 1,6". The type was captured by G. R. Crotch in 1873 on Bald Mountain, in 

 the Cai-ibou District of British Columbia. 



Msdfioffi. A. bischoffi Edw. (87 d) rejiresents the eurynome group in the far North. ^ above bright fulvous, the 



base of the forewings and the inner half of the hindwings deeply shaded with purplish-black, so as to con- 

 ceal the markings. Both wings bordered with moderately heavy terminal lines enclosing a series of small fulvous 

 spots which may be obsolete on the posterior half of the forewing. Otherwise the upper side as in eurynome. 

 Underside of forewings buff , with the basal and discal areas reddish. Hindwings pale buff , the inner two thirds 

 shaded with greyish-green. Submarginal band clear buff ; the spots on the under surface in the majority of cases 

 simply buff, without any silver, occasionally almost obsolete ; in other cases they are fairly well silvered. 

 $ above very pale buff, slightly laved uitli reddish distally. All the markings deep black and heavy. On the 

 forewings the base, on the hindwings more than the inner half deeply obscured with black ; both marginal lines 

 united into a broad, solid black band; between this and the submarginal lunules a series of almost white spots. 

 Besides these and a narrow pale streak in the outer discal area of the forewings and at the apical end of the 

 costal margin, and besides the dirty white spots corresponding to the second row beneath, there remains no- 

 thing of the pale fulvous ground-colour. Underside very much as in (J; also here the spots may or may not 

 be silvered, but the silvering generally predominates. Exjjanse : ^ 1,8", $ 1,9". It home is Alaska; the types 

 were captured near Sitka in the middle of July. 



eurynome. A. eurynome Edv). (86e). Forewings slightly arched, feebly produced apically. (^ above bright yellow- 



ish-fulvous, but little obscured at the base. The black markings moderately heavy, the terminal lines fre- 

 quently confluent so as to form a solid band. Submarginal lunules united, enclosing a series of fulvous 

 spaces of the ground-colour. The rounded postdiscal spots small, the median spots connected by fine lines so 

 as to form a delicate zigzag-band. Underside of forewings pale buff, shaded with cinnamon-brown at base 

 and along the nervules; marginal and subapical spots well silvei'ed. Hindwings yellowish, with the basal and 

 discal areas mottled witJi light ferruginous or more often with pale olive-green. Submarginal band clear buff; 

 all the spots, the basal portion of the costa, and the inner margin well silvered. $ marked very much like the 

 cj, but paler, with the dark markings, especially those at the margin, heavier. The marginal spots enclosed 

 by the black lunules much paler than the ground-colour, occasionally almost white. The second row of silvered 

 spots beneath is indicated above by a faint pale discal streak. Under surface as in (J, but the forewings more 

 heavily obscured with deep ciniu^mon-brov\ n at the base. Expanse: S I,'' — 2,0", $ 2,0". • — The egg resembles 

 that of other known species, with 20 strong verticals ribs, intersected by shorter horizontal ribs, and marked 

 with numerous horizontal striae. Colour at first honey-yellow, later on turning into purple. Neither the larva 

 nor pupa are known, eurynome abounds in the mountains of Colorado, Montana, British Columl)ia and Alberta, 

 where according to Mead it flies on grassy fields along the streams. In Colorado it appears in the first half of 

 arge. June ; in Utah, Arizona and New-Mexico it has not been observed so far. — A. arge Strecker, from California 

 and Washington, is probably a variety of eurynome, connecting this with m.ontivaga, but slightly different from 

 erinna. or perhaps identical with eriniia Edw. (80 e) which replaces the latter in the North, in Alberta and British Co- 



