Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Nadata gibbosa - White-dotted Prominent - Hodges#7915

White-dotted Prominent - Hodges#7915 - Nadata gibbosa White-dotted Prominent Moth - Hodges #7915 - Nadata gibbosa Orange Moth - Nadata gibbosa White-Dotted Prominent - Nadata gibbosa - Nadata gibbosa green caterpillar - Nadata gibbosa Caterpillar ID - Nadata gibbosa White-dotted Prominent (Nadata gibbosa)? - Nadata gibbosa Nadata gibbosa - male
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Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Notodontidae (Prominent Moths)
Subfamily Phalerinae
Genus Nadata
Species gibbosa (White-dotted Prominent - Hodges#7915)
Hodges Number
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:
Two Nadata species are found in America north of Mexico.(2)(3)
Wingspan 3.8-5.9 cm
Larvae less than 5 cm (4)
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 - MPG
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)
Life Cycle
Overwinter as pupa in the ground(5)
2 generations per year(5)
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
Type Locality: Georgia
See Also
Nadata oregonensis found from central California to Washington and the two species do overlap.
Print References
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 (6)
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.
Internet References
Moth Photographers Group - range map, larvae, living and pinned adults.
Dallas Butterflies - pinned adults.
live adult images Lynn Scott
pinned adult, ID, life history, range U of Alberta Entomology Collection
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico.
Donald J. Lafontaine, B. Christian Schmidt. 2010. ZooKeys 40: 1–239 .
3.Check list of the Lepidoptera of America north of Mexico.
Hodges, et al. (editors). 1983. E. W. Classey, London. 284 pp.
4.Caterpillars of Eastern North America
David L. Wagner. 2005. Princeton University Press.
5.Eastern Forest Insects
Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.
6.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.