A Comprehensive Annotated List of the Butterflies
Sullys Hill National Game Preserve Butterfly Survey
The Emperors
Hackberry Butterfly Asterocampa celtis (Boisduval & LeConte), 1833 Habitat: Woodlands with Hackberry Larval food: Celtis spp. Adult flight: Reportedly bivoltine; but only a July brood is known in ND References: Royer 79, Opler & Krizek 173, Scott 255 Confirmed occurrences: Not recorded at Sullys Hill NGP in 1995 or 1996, but possible in any year near Hackberry trees.
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