Zimmermann, M., Wahlberg, N. & Descimon, H. 2000. Phylogeny of Euphydryas checkerspot butterflies (Lepidoptera: Nymphalidae) based on mitochondrial DNA sequence data. Annals of the Entomological Society of America 93: 347-355. doi:10.1603/0013-8746(2000)093[0347:POECBL]2.0.CO;2
|