Plate IV · Specimen Census
Nocturnal Lepidoptera
Collection data, 1842–1897

The night yields fourfold

Specimens preserved by family
0 1,500 3,000 4,500 4,280 2,840 2,190 1,520 980 670 Noctuidae Geometridae Erebidae Sphingidae Saturniidae Zygaenidae Total nocturnal: 12,480  ·  All diurnal families combined: 3,120  ·  Ratio 4 : 1
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