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Species Rothschildia forbesi - Forbes' Silkmoth - Hodges#7761

Rothschildia Lebeau Forbesi (Forbes' Silkmoth) - mating pair (male on right) - Rothschildia forbesi - male - female Forbes' Silkmoth caterpillars - Rothschildia forbesi Forbes' Silkmoth  - Rothschildia forbesi Finally a Forbes! moved inside - Rothschildia forbesi SANWR Rothschildia cocoon - Rothschildia forbesi Rothschildia forbesi? - Rothschildia forbesi Rothschildia forbesi cocoon? - Rothschildia forbesi caterpillar - Rothschildia forbesi
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Bombycoidea (Silkworm, Sphinx, and Royal Moths)
Family Saturniidae (Giant Silkworm and Royal Moths)
Subfamily Saturniinae (Silkmoths)
Tribe Attacini
Genus Rothschildia
Species forbesi (Forbes' Silkmoth - Hodges#7761)
Hodges Number
7761
Other Common Names
In Spanish: "Cuatro Espejos" (four mirrors)
Synonyms and other taxonomic changes
Rothschildia lebeau forbesi (1)
Size
Wingspan 10-12.5 cm
Identification
Very large silk moth found only in South Texas.
Transparent triangular spots on the wings. Wings reddish brown to dark brown with olive tinge.
Range
Fairly common in the lower Rio Grande Valley, especially around Brownsville, Texas. Ranges south into Mexico. (2)
Season
February-April, September-November (two flights in Texas)
Life Cycle
Larvae feed on several trees/shrubs, such as Ash, Fraxinus, prickly ash, Zanthoxylum, and willow, Salix.

Adults may take two or three years before emerging from the pupa. (2)
Remarks
Two other species in this genus rarely enter into SE Texas: Jorulla silkmoth (R. jorulla) and Orizaba silkmoth (R. orizaba)

R. cincta was recorded from the Brownsville area ca. 1900. (2)

NOTE: Records for Rothschildia jorulla/cincta in se. TX are based on the same taxon (i.e. listed as R. jorulla cincta)
Print References
Tuskes, pp. 187-188, plates 24--adult, 5-larva (1)
(3)
Internet References
Moth Photographers Group - species page with photographs of living and pinned adults.
Works Cited
1.The Wild Silk Moths of North America: A Natural History of the Saturniidae of the United States and Canada
Paul M. Tuskes, James P. Tuttle, Michael M. Collins. 1996. Cornell University Press.
2.Illustrated Checklist of the Lepidoptera of the Lower Rio Grande Valley, Texas, Vol. 2B: Macro-Moths
Ed Knudson & Charles Bordelon. 2004. Texas Lepidoptera Survey, Houston. xiv + 59 pp. 20 plates.
3.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.