The Entomologist's Record and Journal of Variation, 1982, Vol. 94 (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from The Entomologist's Record and Journal of Variation, 1982, Vol. 94

Dark streak of forewing parallel with the distal-margin, usually so broadened as to coalesce with, or at least touch, the black spots in areas 2 and 4 (one exception in this respect, has been seen). Hindwing with deeper and more prominent brown or rufous-brown colouring, as a zone beyond the middle of the wing, in nearly all specimens, than in nominate nigricans, and this darkening also apply ing in general to the wing near the base; while in the least darkly marked examples there is, anyway, more contrast between the dark and light areas.

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