Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Species Didugua argentilinea - Silvered Prominent - Hodges#7961

Silvered Prominent, dorsal view - Didugua argentilinea Didugua argentilinea Druce - Didugua argentilinea Didugua argentilinea Druce - Didugua argentilinea 7961 – Silvered Prominent Moth - Didugua argentilinea - female TX moth - Didugua argentilinea - male Silvered Prominent - Didugua argentilinea Didugua argentilinea Prominent moth caterpillars I suspect. - Didugua argentilinea
Show images of: caterpillars · adults · both
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 Nystaleinae
Genus Didugua
Species argentilinea (Silvered Prominent - Hodges#7961)
Hodges Number
Synonyms and other taxonomic changes
Didugua argentilinea Druce, 1891
Phylogenetic sequence # 930137 (1)
Explanation of Names
argent - Latin for 'silver' (2)
Lafontaine & Schmidt (2010) listed Didugua argentilinea as the only member of the genus in America north of Mexico. (1)

Caterpillar is brilliantly colored and difficult to mistake for anything else that overlaps in range and host plants. The adult moth has two distinctive white markings on the leading margin of each forewing, shaped like the dorsal fin of a shark.
Southern Texas to Costa Rica.
Caterpillars can apparently be found year-round
Larval hosts are many and varied, including multiple genera of Sapindaceae (Urvillea, Serjania, possibly Cardispermum); also Turk's-cap (Malvaviscus drummondii; Malvaceae), and unripe seeds of Mesquite (Prosopis spp., Fabaceae) and foliage of assorted trees including Hackberry, Ash, and Brasil.
Print References
Wagner, D.L.,, 2005, Caterpillars of Eastern North America. Princeton University Press. (3)
Knudson and Bordelon 2004. Illustrated Checklist of the Lepidoptera of the Lower Rio Grande Valley, TX Volume 2B: Macro-moths. (4)
Works Cited
1.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 .
2.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
3.Caterpillars of Eastern North America
David L. Wagner. 2005. Princeton University Press.
4.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.
5.North American Moth Photographers Group
6.BOLD: The Barcode of Life Data Systems
7.Butterflies of North America