Northern Prairie Wildlife Research Center
Great Copper Gaeides xanthoides (Boisduval), 1852 Habitat: Prairie meadows, ditches, disturbed areas Larval food: Rumex obtusifolius Adult flight: One brood, late June through July References: Royer 47, Opler & Krizek 83, Scott 391 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, but on record elsewhere in McHenry and adjacent counties, and probable in any year. Bronze Copper Hyllolycaena hyllus (Cramer), 1775 Habitat: Open wet meadows with Polygonum or Rumex, pond margins, marshes, usually with neutral to alkaline soil pH Larval food: Rumex crispus, R. obiculatus, Polygonum spp. Adult flight: Two broods, June and August References: Royer 47, Opler & Krizek 84, Scott 388 Confirmed occurrences: Not recorded in 1995 at J. Clark Salyer NWR, but on record elsewhere in McHenry and adjacent counties, and probable in any year in lowland meadows with docks Purplish Copper Epidemia helloides (Boisduval), 1852 Habitat: Wastelands, wet ditches, open fields; a vagile species Larval food: Rumex spp., Polygonum spp. Adult flight: Two broods, June and August References: Royer 49, Opler & Krizek 86, Scott 389 Confirmed occurrences: 19 Jun 1995 in NE 1/4 S6 T158N R76W; 11 Jun 1996 on transect CS002. Coral Hairstreak Harkenclenus titus (Fabricius), 1793 Habitat: Scrub, esp. with Prunus, Crataegus and Asclepias Larval food: Prunus spp. Adult flight: One brood, July into August References: Royer 50, Opler & Krizek 89, Scott 360 Confirmed occurrences: 28 Jul 1995 on transect CS002 and swarming in north ditch on blooms of Baby's Breath, S14 T158N R76W; also common on willow clumps, 24 Jun 1987 in NW 1/4 S6 T158N R76W; common 13 Jul through 1 Aug 1996 on transect CS002; again abundant 13 Jul 1996 in north ditch east of bridge, S14 T158N R76W on Baby's Breath. Acadian Hairstreak Satyrium acadicum (Fabricius), 1793 Habitat: Willow scrub in moist areas Larval food: Salix spp. Adult flight: One brood, late June, July References: Royer 50, Opler & Krizek 90, Scott 361 Confirmed occurrences: 28 Jul 1995 on transect CS001 and elsewhere in S6 T158N R76W. Edwards' Hairstreak Satyrium edwardsii (Grote & Robinson), 1867 Habitat: Scrub oak thickets, esp. in sandy or gravelly areas Larval food: Quercus macrocarpa in our area Adult flight: One brood, late June, July References: Royer 51, Opler & Krizek 91, Scott 364 Confirmed occurrences: 28 Jul 1995 swarming in north ditch on blooms of Baby's Breath, S14 T158N R76W; also common on 7 Jul 1986 in sandhills area in NW 1/4 S5 T158N R76W; fairly common 13 Jul 1996 on transect CS002; again abundant 13 Jul 1996 in north ditch east of bridge, S14 T158N R76W on Baby's Breath. Banded Hairstreak Satyrium calanus (Hübner), 1809 Habitat: Oak woodlands Larval food: Quercus macrocarpa in ND, also Juglans, Carya elsewhere Adult flight: One brood, late June, July References: Royer 51, Opler & Krizek 92, Scott 363 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, but one female on record (vouchered Royer) 7 Jul 1986 from sandhills area in NW 1/4 S5 T158N R76W. Striped Hairstreak Satyrium liparops (LeConte), 1833 Habitat: Oak woodlands, wooded breaks or thickets that include Amelanchier, Prunus, Crataegus; especially fond of Melilotus alba, Gypsophila blooms Larval food: Rosaceae, incl. Prunus, Crataegus, Amelanchier, etc. Adult flight: One brood, late June, July References: Royer 52, Opler & Krizek 94, Scott 362 Confirmed occurrences: 28 July 1995 in NE 1/4 S6 T158N R76W; 13 Jul 1996 on transect CS001. Hoary Elfin Incisalia polia (Cook & Watson), 1907 Habitat: Only in bearberry stands, usually near aspens Larval food: Arctostaphylos uva-ursi Adult flight: One brood, mid-May References: Royer 53, Ferris & Brown 250, Scott 370 Confirmed occurrences: 14, 17 and 30 May 1995 in S12 T158N R76W. Gray Hairstreak Strymon melinus (Hübner), 1818 Habitat: Brushy, weedy disturbed open areas; occasional Larval food: Widely varied, incl. Astragalus, Polygonum, Malva Adult flight: Two or three broods, May, July, September References: Royer 54, Ferris & Brown 264, Scott 383 Confirmed occurrences: 28 July 1995 in NE 1/4 S6 T158N R76W. Eastern Tailed Blue Everes comyntas (Godart), 1824 Habitat: Humid open areas with legumes in eastern ND Larval food: Many legumes, incl. Trifolium, Vicia, Melilotus Adult flight: Three broods, May, July, September References: Royer 55, Opler & Krizek 114, Scott 395 Confirmed occurrences: Not recorded in 1995 at J. Clark Salyer NWR, but on record 13 May 1987 from woodland on trail near entrance gate to tower/picnic area in S6 T158N R76W (vouchered Royer); encountered again on 11 Jul 1996 at 750m on transect CS001. Farthest NW record in ND. Western Tailed Blue Everes amyntula (Boisduval), 1852 Habitat: Humid, wooded areas with legumes, western ND Larval food: Many legumes, incl. Astragalus, Oxytropis, Trifolium Adult flight: Two broods, June and August (usually a smaller 2nd brood) References: Royer 55, Ferris & Brown 219, Scott 396 Confirmed occurrences: 9 Jun 1995 in NW 1/4 S6 T158N R76W. Spring Azure Celastrina argiolus (Linnaeus), 1758 Habitat: Most often associated with Amelanchier blooms in spring, Cornus in summer Larval food: Prunus in west; Cornus, Viburnum, etc. in north and east. This is actually a complex of sibling species the systematics of which are currently being worked out. We probably have two species in ND, differentiated by their larval hosts. Adult flight: The eastern taxon is bivoltine, flying in May and again in July; the western taxon is univoltine, flying only in May. References: Royer 56, Ferris & Brown 221, Opler & Krizek 116, Scott 396 Confirmed occurrences: 14, 17 and 30 May 1995 in S12 T158N R76W, but also second brood on 24 Jun 1987 (2 females vouchered Royer); one example 13 Jul 1996 in wooded section of transect CS002. Silvery Blue Glaucopsyche lygdamus (Doubleday), 1841 Habitat: Open areas in or near woodlands Larval food: Legumes, incl. Lupinus, Astragalus, Hedysarum Adult flight: Widespread, late May through June, one brood only References: Royer 56, Opler & Krizek 119, Scott 399 Confirmed occurrences: 30 May 1995 in S12 T158N R76W. Melissa Blue Lycaeides melissa (Doubleday), 1841 Habitat: Open prairies Larval food: Legumes, incl. Lupinus, Astragalus, Oxytropis, Glycyrrhiza Adult flight: Two broods, June and August References: Royer 56, Ferris & Brown 202, Scott 407 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, but on record from McHenry and surrounding counties, and therefore probable from in June and August in prairie areas. Saepiolus Blue Plebejus saepiolus (Boisduval), 1852 Habitat: Wooded clearings Larval food: Trifolium spp. exclusively Adult flight: One protracted brood, mid-June through July References: Royer 57, Ferris & Brown 204, Scott 408 Confirmed occurrences: Not recorded in 1995 or 1996 at J. Clark Salyer NWR, and not on record for McHenry County, but on record from both Ward and Bottineau Counties, and therefore possible from in June and August in low prairie areas near woods.