Walsh, B.D. (1867). On the insects, coleopterous, hymenopterous and dipterous, inhabiting the galls of certain species of willow – Part 2d and last. Proceedings of the Entomological Society of Philadelphia. 6: 223-288.
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Walsh, B.D.
1867
On the insects, coleopterous, hymenopterous and dipterous, inhabiting the galls of certain species of willow – Part 2d and last
Proceedings of the Entomological Society of Philadelphia