Caterpillars of Eastern Forests
One-spotted Variant (Hypagyrtis unipunctata)
Cylindrical, mottled in grays and reddish brown with faint longitudinal streaking, lacking conspicuous warts, humps, or other distinctive characters. Venter of third thoracic segment modestly thickened. Often with small pale lateral spots on first abdominal segment just above and behind spiracle. Head mottled, with markings coalescing into darker area above triangle. Dorsum of eighth segment sometimes with pale spots. Last abdominal segment with lateral anal spurs (paraprocts) little more than nubs. Three other closely similar Hypagyrtis occur in East. Food: many forest trees and shrubs, possibly including conifers. Caterpillar: overwinters, essentially all months; 2 generations in North.
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