New American Syrphid Flies of the Subfamily Eristalinse
Published in Psyche: A Journal of Entomology, in 1949, in volume 56, issue 3, pages 120-138
Date published:1949
Published in Psyche: A Journal of Entomology, in 1949, in volume 56, issue 3, pages 120-138
Date published:1949