LEPIDOPTERA
PIERIDAE Duponchel,1835
COLIAS Fabricius,1807
Colias erschoffii Alpheraky, 1881
Colias erschoffii erschoffii Alpheraky, 1881
• RANGE . N. and E. Tian-Shan.
• HABITAT AND BIOLOGY. Steppe-supporting slopes at 1,300-2,500 m a.s.l. Flight period: June-July. Host plant: Astragalus.
• SIMILAR SPECIES. C. poliographus: UPS ground colour uniform greenish-yellow; HW yellow discal spot rounded, not tridentate. C. crate: smaller; UPS dark border without pale spots.
Photo and text: Guide to the BUTTERFLIES OF RUSSIA and adjacent territories Volume 1. PENSOFT, Sofia - Moscow. 1997