A Comprehensive Annotated List of the Butterflies
Little Missouri National Grassland 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 for ND References: Royer 79, Opler & Krizek 173, Scott 255 Confirmed occurrences: Not reported from Little Missouri National Grassland in 1995 or 1996, but on record from Slope County, and could be encountered in any year where one finds its foodplant, Celtis spp.
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