A Comprehensive Annotated List of the Butterflies
J. Clark Salyer NWR Butterfly Survey
The Satyrs & Wood Nymphs
Northern Pearly Eye Enodia anthedon (Clark), 1936 Habitat: Deep, shady woodlands; often perches on trunks; drinks sap Larval food: Grasses, incl. Leersia, Hystix, Phalaris, Schizachne Adult flight: One brood in July References: Royer 80, Opler & Krizek 176, Scott 234 Confirmed occurrences: 23 Jun 1995 on transect CS001 in NW 1/4 S6 T158N R76W. Northern Eyed Brown Satyrodes eurydice (Johansson), 1763 Habitat: Open sedge meadows and marshlands Larval food: Primarily Carex spp. Adult flight: One brood, primarily in July References: Royer 80, Opler & Krizek 178, Scott 235 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, but on record (vouchered Royer) 7 Jul 1986 from near Johnson Bridge in SE 1/4 S30 T159N R76W. Little Wood Satyr Megisto cymela (Cramer), 1777 Habitat: Shady woodlands, in ND often near hazel stands Larval food: Dactylis glomerata, doubtless other grass species Adult flight: One brood, primarily in June References: Royer 81, Opler & Krizek 184, Scott 237 Confirmed occurrences: 19 Jun 1995 in S6 T158N R76W and SE 1/4 S 36 T159N R77W; also 23 Jun 1995 along road in SW 1/4 S1 T158N R77W; 20 Jun 1996 on transect CS001. Inornate Ringlet Coenonympha inornata (Edwards), 1861 Habitat: Open, grassy meadows and native prairies Larval food: Doubtless many grass species are utilized Adult flight: One brood, primarily in late May and June References: Royer 81, Opler & Krizek 186, Scott 239 (as tullia) Confirmed occurrences: 9, 19 and 23 Jun 1995, ubiquitous in grassy areas throughout the refuge; uncommon but widespread on both transects, Jun and early Jul 1996. Common Wood Nymph Cercyonis pegala (Fabricius), 1775 Habitat: Native prairies and grasslands Larval food: Andropogon, Stipa; many grasses are no doubt utilized Adult flight: One brood, primarily in July and August References: Royer 82, Opler & Krizek 186, Scott 240 Confirmed occurrences: 28 Jul and 9 Aug 1995, ubiquitous in grassy areas throughout the refuge; less common but widespread 13 Jul through 15 Aug 1996 on both transects. Varuna Arctic Oeneis uhleri varuna (W. H. Edwards), 1882 Habitat: TL = "Plains of Dakota Territory"; well drained prairie slopes Larval food: Unknown grass sp. Adult flight: One brood, mid-May into June References: Royer 84, Ferris & Brown 284, Scott 250 Confirmed occurrences: 30 May and 9 Jun 1995, widespread in grassy areas throughout S6 T158N R76W, doubtless elsewhere as well; present but uncommon on transect CS002, 11 Jun 1996. Alberta Arctic Oeneis alberta (Elwes), 1893 Habitat: Virgin prairies in isolated colonies; rare; early May Larval food: Festuca spp. Adult flight: One brood, early to middle May References: Royer 84, Ferris & Brown 286, Scott 249 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, but on record (vouchered Royer) 13 May 1994 at Mouse River State Forest just a few miles SE of refuge.
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