Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Glaucous Cracker
Hamadryas glauconome (H.W. Bates, 1864)

Family: Nymphalidae
Subfamily: Biblidinae
Identification: Upperside is mottled with gray, brown, and white. Outer half of forewing is white, with no red bar in the cell. Hindwing eyespots have orange scales before the black crescent.
Wing Span: Not reported.
Life History: Eggs are laid singly along stems and petioles of the host plant. Adults perch on tree trunks head downward with their wings spread open; before dark, they gather on a single tree, then disperse to roost in nearby trees or shrubs. Males make a cracking noise when flying.
Flight: Many flights all year in tropical America.
Caterpillar Hosts: Vine Dalechampia in the spurge family (Euphorbiaceae).
Adult Food: Rotting fruit and carrion.
Habitat: Moist or semidesert tropical open areas with trees.
Range: Guatemala north to Mexico. A rare stray to southeastern Arizona and south Texas.
Conservation: Not required for rare stray.
Management Needs: None reported.
Comments: As per Paul Opler's request (10/2009), the Range was updated from "rare stray to Florida" to "rare stray to southeastern Arizona and south Texas."
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