DescriptionCorydalus cornutus illustration (rotated).png Illustration of a dobsonfly. The original caption read: Fig. 511.--Corydalus cornutus, hellgrammite...
DescriptionCorydalus cornutus illustration.png Illustration of a dobsonfly. The original caption read: Fig. 511.--Corydalus cornutus, hellgrammite, male...
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