A. N. Zhelochovtzev, A. P. Rasnitsyn, "On Some Tertiary Sawflies (Hymenoptera, Symphyta) From Colorado", Psyche: A Journal of Entomology, vol. 79, Article ID 063630, 13 pages, 1972. https://doi.org/10.1155/1972/63630
On Some Tertiary Sawflies (Hymenoptera, Symphyta) From Colorado
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