Other Common Names
Green Oak Caterpillar Moth
Synonyms and other taxonomic changes
Nadata gibbosa (J.E. Smith)
Orig. Comb: Phalaena gibbosa J.E. Smith 1797
* phylogenetic sequence #930046
Explanation of Names
gibb - Latin for humped (1)
Probably a reference to the humped throax:
species are found in America north of Mexico.(2)(3)
Adult: Rusty color, yellow lines on forewing, pair of white dots in reniform spot
although certain individuals may have one or both spots reduced or completely absent
Larva: Stout, pale green body with enlarged head and faint subdorsal stripe, and yellow-rimmed anal plate. Mandibles (jaws) bright yellow with black tips.
e. N. Amer., West Coast states, and scattered Rocky Mtn records - Map
Deciduous forests and edges
Adults: April-October, two or three broods in southern part of range (4)
Mature Caterpillars: May through November (4)
Principally oak and other Fagaceae, but also reported from alder, birch, cherry, chestnut, maple, plum, rose and willow. (4)
larval posture assumed when threatened:
Life cycle images:
early instar larva, larva attached to oak leaf with silk, later instar larva, late instar larva, pupa, adult
found from central California to Washington and the two species do overlap.
Lafontaine J.D., and B.C. Schmidt 2010. Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America North of Mexico. (2)
Covell, p. 330, plate 43 #14 (5)
Smith, J.E., & J. Abbot. 1797. The Natural History of the rarer lepidopterous insects of Georgia. 2 vols. J. Edwards; Cadell and Davies; J. White, London. 214 pp. 104 pl.
Moth Photographers Group
- range map, larvae, living and pinned adults.