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Sphenophorus aequalis

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Sphenophorus aequalis, the clay-coloured billbug, is a species of beetle in the family Dryophthoridae. It is found in North America.

Subspecies

These five subspecies belong to the species Sphenophorus aequalis:

Sphenophorus aequalis aequalis Gyllenhal, 1838
Sphenophorus aequalis ochreus
Sphenophorus aequalis pictus
Sphenophorus aequalis scirpi Chittenden
Sphenophorus aequalis univitta Chittenden

Further reading

Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. Apollo Books. ISBN 978-90-04-26093-1.
Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. Apollo Books. ISBN 978-90-04-25916-4.