Parnassius arcticus arbugaevi, adult specimens in nature, host plants and habitat (photo by Yu. Bakhaev): a, b − P. a. arbugaevi ssp.n. in nature, male and female; c, d − habitat of P. a. arbugaevi; e − Gorodkovia jacutica, feeding plant of adults of P. a. arbugaevi; f − Corydalis gorodkovii – larval host plant of P. a. arbugaevi. Location of eggs laid on stones near the larval hostplant indicated by an arrow.