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Larval key to Genera and selected Species of North American Cocinellidae (Coleoptera)
By Rees, B. E., Anderson, D. M., Bouk, D., and Gordon, R. D.
Proceedings of The Entomological Society of Washington, vol. 96(3), pp. 387-412, 1994
Cite: 234206 with citation markup [cite:234206]
"Abstract - An illustrated key to the larvae of 46 of the 60 genera of North American Coccinellidae is presented." (including all genera currently represented in BugGuide) Fourteen genera are not yet understood sufficiently to include.

Paper includes many detailed figures of overall habitus and structures necessary for keys including; head and mouthparts, antennae, body structures and armature types.

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