Chittenden, F. H., 1904, On the species of Sphenophorus hitherto considered as placidus Say.

Chittenden, F. H., 1904, On the species of Sphenophorus hitherto considered as placidus Say., Proceedings of the Entomological Society of Washington 6, No. 3, pp. 130-137

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urn:lsid:zoobank.org:pub:162779D929AB4C0AA310363B89D90EF3

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