A Comprehensive Annotated List of the Butterflies
Lostwood NWR Butterfly Survey
The Whites and Sulphurs
Western White Pontia occidentalis (Reakirt), 1866 Habitat: Open prairie, especially on hilltops Larval food: Cruciferae, incl. Lepidium, Arabis, Sisymbrium Adult flight: Two broods, May, July References: Royer 39, Ferris & Brown 150, Scott 222 Confirmed occurrences: 31 May 1995, Unit 5a; 29 Jul 1995, Unit 3c on transect L001; 5 August 1995, Unit 7 near mailbox. European Cabbage Butterfly Artogeia rapae (Linnaeus), 1758 Habitat: Ubiquitous in gardens and roadsides in agricultural areas Larval food: Cruciferae, occasionally also Capparidaceae Adult flight: Multiple broods, May-September References: Royer 40, Opler & Krizek 59, Scott 216 Confirmed occurrences: Continuous throughout 1995 season in all management units; uncommon until late in the 1996 season. Olympia Marble Euchloe olympia (W. H. Edwards), 1871 Habitat: Prairies and sage flats Larval food: Cruciferae, incl. Arabis, possibly also Sisymbrium Adult flight: One brood, May References: Royer 41, Opler & Krizek 157, Scott 215 Confirmed occurrences: 31 May 1995, eastern portion of Unit 5b. Clouded Sulphur Colias philodice Godart, 1819 Habitat: Ubiquitous in agricultural areas Larval food: Legumes, esp. Trifolium spp., Medicago and Melilotus Adult flight: Multiple broods, May-September References: Royer 42, Opler & Krizek 64, Scott 198 Confirmed occurrences: Continuous throughout 1995 season, peaking on 10 Jun and again on 29 Jul; intermittently common on both transects during 1996. Orange Sulphur Colias eurytheme Boisduval, 1852 Habitat: Common in agricultural areas, though less so than philodice Larval food: Legumes, esp. Medicago, also Melilotus Adult flight: Multiple broods, May-September References: Royer 42, Opler & Krizek 65, Scott 196 Confirmed occurrences: 10 Jun 1995, Unit 17 near aspen stand; 5 Jul 1995 in Unit 3c; 29 Jul 1995 in Unit 3c; 5 Aug 1995 in Unit 7 near mailbox.
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