200 
NYMPHALIDM. 
6. — A. Chariclea, Sclin. N. Mag. v. p. 588 (1794) ; Hbst. 272, 
5, 6; Hub. 769-70; 0. iv. 114. 
Arctica, Zett. Ins. Lapp. p. 899. 
Boisduvalii, Dup. i. 27, pi. 20, 4 ; Boisd. Ic. 20, 5, 6. 
Expands from 1*50 to 1-70 in. Wings more angular in outline 
than in the preceding species. Marginal fringes black and white. 
All the wings above are dull fulvous, with black spots, and black at 
the base ; the central row of spots has a tendency to form a band. 
Under side : Fore wings marked with reddish brown along the hind 
margin ; hind wings reddish brown, darkest at the base, near 
which are some very small silvery spots ; across the centre of the 
wing is a yellow band, marked with two triangular silvery spots, 
and bordered with a black zigzag line ; external to this is a 
whitish streak, and parallel to it a row of black spots ; lastly, there 
is a hind-marginal row of silvery spots enclosed by a row of angular- 
shaped markings of a reddish brown colour. There is no white 
discoidal spot. PI. XL VII., 5. 
Time of Appearance. — July. 
Habitat. — Eussian Lapland (Wallengren Rhop. Scand. 
p. 97), frequenting mountains ; also in Labrador and Green- 
land. It was taken during the Polar Expedition of 1876, between 
lat. 79° to 81° 52' N., at Hayes’ Sound, Port Foulke, Walrus 
Island, Discovery Bay, &c. (See Mr. M‘Lachlan’s report in the 
‘ Journal of the Linnean Society,’ already referred to at p. 48 of 
this present work. 
Larva, &c. — Unknown. 
Obs. — This species is very variable, some dark specimens 
approaching somewhat to the variety Lapponica of the preceding 
species, others being hard to distinguish from A. Polaris or Freija; 
in fact all the circumpolar species of Fritillaries are very closely 
allied, and seem to run into one another. 
VARIETY. 
Duponchel’s variety Boisduvalii appears to differ chiefly in 
being less varied on the under side of the hind wings, and in 
the zigzag border of the light band being indistinct or absent, 
