Genus Thymelicus Hübner
(1) Thymelicus brettus (Boisduval & Leconte), Plate CXLI, Fig. 3, ♂; Fig. 4, ♀ (The Whirlabout).
This insect, which is rare in the Northern States, is common in the South and has a wide range through the American tropics. Expanse 1.15-1.25 inch.
(2) Thymelicus otho (Smith & Abbot), Plate CXLII, Fig. 1, ♂; Fig. 2, ♀.
The upper side is sufficiently well shown in our plate. Below the wings are yellowish brown with outer half of the fore wings blackish; spots of fore wing repeated except last. Hind wings below with an obscure yellowish band of five or six spots. A variable species. The northern form, with fewer spots, is called egeremet, and is not very common in New England, but southward the species is abundant. Expanse 1.20-1.25 inch.
Found in New England, Florida, and west throughout the Mississippi Valley.
(3) Thymelicus mystic (Scudder), Plate CXLII, Fig. 3, ♂; Fig. 4, ♀ (The Long-dash).
Upper side of both sexes well shown in our plate. Below fore wings fulvous on costa near base; remainder of wings on this side dark ferruginous, with the light spots of the upper side repeated, greatly enlarged, pale, contrasting strongly with dark ground-color. Hind wings pale brown on inner margin. Expanse 1.10-1.25 inch.
Ranges from southern Canada to Pennsylvania and west to Wisconsin.