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Family Ypsolophidae

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Descriptions of North American Lepidoptera, No. 6
By Grote, A.R.
Proceedings of the Entomological Society of Philadelphia., 4: 315-330, 1863
Grote, A.R., 1863. Descriptions of North American Lepidoptera, No. 6. Proceedings of the Entomological Society of Philadelphia., 4: 315-330.

Geometrites
By Walker, F.
List of the specimens of lepidopterous insects in the collection of the British Museum. 18: 509–798, 1859
Walker, F., 1859. Geometrites. List of the specimens of lepidopterous insects in the collection of the British Museum. 18: 509–798.

Deltoïdes et Pyralites.
By Guenée, M. A.
Histoire Naturelle des Insectes. Species Général des Lépidoptères 8 8., 1854
Guenée, M. A. 1854: Deltoïdes et Pyralites. Pp. 1–448. – In: Boisduval, J. B. A. D. de & M. A. Guenée, Histoire Naturelle des Insectes. Species Général des Lépidoptères 8 8. – Roret, Paris.

Contributions to American lepidopterology
By Clemens, B.
Proceedings of the Academy of Natural Sciences of Philadelphia, 12: 4–15, 156–174, 203–221, 345–362, 522–547, 1860
Clemens, B., 1860. Contributions to American lepidopterology. Proceedings of the Academy of Natural Sciences of Philadelphia, 12: 4–15, 156–174, 203–221, 345–362, 522–547.

Includes:

Clemens, B., 1860. Contributions to American lepidopterology - No. 4. Proceedings of the Academy of Natural Sciences of Philadelphia 12: 156-174. (1)
Clemens, B., 1860. Contributions to American lepidopterology - No. 5. Proceedings of the Academy of Natural Sciences of Philadelphia 12: 203-221. (2)
Clemens, B., 1860.

Some new moths from Arizona
By Walter, E.V.
Proceedings of the Entomological Society of Washington, 30: 137–141., 1928
Walter, E.V., 1928. Some new moths from Arizona. Proceedings of the Entomological Society of Washington, 30: 137–141.

To agree or not to agree - the question of gender agreement in the International Code of Zoological Nomenclature
By Sommerer, M.D.
Nota Lepidopterologica, 25(2/3): 191-20, 2002
Sommerer, M.D., 2002. To agree or not to agree - the question of gender agreement in the International Code of Zoological Nomenclature. Nota Lepidopterologica, 25(2/3): 191-20. https://www.biodiversitylibrary.org/page/41371975

Notes and new species
By Barnes W. & A. Busck, 1920
Contributions to the natural history of the Lepidoptera of North America, 4(3): 211-278, 1920
Barnes W. & A. Busck, 1920. Contributions to the natural history of the Lepidoptera of North America, 4(3): 211-278

List of the specimens of lepidopterous insects in the collection of the British Museum. Part XXXIV - Supplement. Part 4
By Francis Walker
British Museum, 1865
Full text and downloadable PDF available from Biodiversity Heritage Library starting here.

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