Cordulegastridae

spiketails

Cordulegaster sayi, base of hind wing

Cordulegaster sayi, base of hind wing

Hind wing base of Cordulegaster sayi. From Comstock (fig. 230) [1].

References

  1. Comstock J.H.
    (1918) The wings of insects. The Comstock Publishing Company, Ithaca, N.Y.

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