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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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

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Previous events


Species Spodoptera exigua - Beet Armyworm Moth - Hodges#9665

Spodoptera exigua ? - Spodoptera exigua Silverado Moth #5 - Spodoptera exigua unknown moth - Spodoptera exigua Moth C 10.3.18 - Spodoptera exigua Lepidoptera --? - Spodoptera exigua 932215	Spodoptera exigua - Spodoptera exigua Arizona Moth - Spodoptera exigua Florida Moth - Spodoptera exigua
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 Noctuidae (Owlet Moths)
Subfamily Noctuinae (Cutworm or Dart Moths)
Tribe Prodeniini
Genus Spodoptera (Armyworm Moths)
Species exigua (Beet Armyworm Moth - Hodges#9665)
Hodges Number
Other Common Names
Small Mottled Willow (Europe); Beet Armyworm (North America)
Synonyms and other taxonomic changes
Spodoptera exigua (Hübner, [1808])
Noctua exigua Hübner, [1808]
* phylogenetic sequence #932215
Eleven Spodoptera species are found in America north of Mexico.(1)
Forewing length 11-12 mm.(2)
Found throughout North America; more common in southern states.
Native to southeast Asia; first discovered in North America about 1876.
Moth Photographers Group - large range map with some collection dates.
Bug Guide - map of photo records submitted to the guide.
Adults can be found year round in the southern states and most records from northern areas are from July to October.
Larvae feed on leaves of a variety of vegetables and weeds.
Considered a serious pest. It feeds on asparagus, beans and peas, sugar and table beets, celery, cole crops, lettuce, potato, tomato, cotton, cereals, oilseeds, tobacco, many flowers, and many of weed species.
Print References
Lafontaine, J. D. & B. C. Schmidt 2010. Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America North of Mexico. p.71 (1)
Mitchell, E.R. 1979. Migration by Spodoptera exigua and S. frugiperda, North America style, Pp. 386-393. In: Rabb, L.R. & G.G. Kennedy (eds.). Movement of highly mobile insects: Concepts and methodology research. North Carolina State University.
Powell, J. A. & P. A. Opler 2009. Moths of Western North America. University of California Press. p.294, pl.52.55 (2)
Internet References
Moth Photographers Group - range map, some collection records, living and pinned adults.
BOLD - Barcode of Life Data Systems - collection map and photos of pinned adults.
pinned adult images (Bruce Walsh, Moths of Southeastern Arizona)
Moth Photographers Group - photo of pinned adult and related species.
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.Moths of Western North America
Powell and Opler. 2009. UC Press.