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Species Trichoplusia ni - Cabbage Looper Moth - Hodges#8887

Moth - Trichoplusia ni Moth - Trichoplusia ni T. ni? - Trichoplusia ni Trichoplusia ni ? - Trichoplusia ni Moth with squiggly white blob - Trichoplusia ni Trichoplusia ni - Cabbage Looper Moth - Trichoplusia ni Moth to blacklight, eggs and caterpillars - Trichoplusia ni Moth 060817bar - Trichoplusia ni
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 Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Plusiinae (Looper Moths)
Tribe Argyrogrammatini
Genus Trichoplusia
Species ni (Cabbage Looper Moth - Hodges#8887)
Hodges Number
8887
Other Common Names
Ni Moth
Synonyms and other taxonomic changes
Trichoplusia ni (Hübner, [1803])
Noctua ni Hubner, [1803]
Plusia humilis Walker, 1858
P. florida Dannehl, 1929
* phylogenetic sequence #931168
Explanation of Names
Ni: chemical symbol of the element Nickel; perhaps the silvery-white stigma on the adult's forewing was reminiscent of nickel to Hubner, who described the moth, but this is pure speculation.
Numbers
The only species in this genus in North America; variably common throughout range.
Size
Forewing length 15-18 mm (Pogue, 2005)(1)
Larva to 32 mm
Identification
Adult - forewing a blend of light and dark brown, showing very little overall contrast; stigma consists of small U-shaped inner spot usually not touching solid outer spot; terminal line scalloped; hindwing gleaming grayish-brown, darker in outer half.

Larva - green with thin white stripes down the back, and a single thicker white stripe along the side.
Range
Cosmopolitan, introduced in the Nearctic. In North America, from Florida to California, north to British Columbia, east to Newfoundland (adults migrate north in late summer to northern United States and southern Canada) in the Americas, occurs south to Argentina.
Habitat
Fields, gardens; adults are nocturnal and come to light.
Season
Adults fly from March to October.
Food
Larvae feed on cabbage, broccoli, brussel sprouts, kale, cauliflower, asparagus, beets, lettuce, and many other garden crops. Found and reared on wild Mohavea confertiflora (Desert Ghost Flower) (Southwestmoths.org).
Life Cycle
One to three or more generations per year.
Larva; pupa; adult
See Also
Gray Looper Moth (Rachiplusia ou) forewing shows more contrast, and lines are more distinct (compare photos of both species at CBIF). Several other members of the subfamily Plusiinae are similar.
Print References
Covell Jr., C. V. 1984. A field guide to the moths of eastern North America. p.155, pl.31, f.10 (2)
Eichlin, T. D. & H. B. Cunningham 1978. The Plusiinae (Lepidoptera: Noctuidae) of America north of Mexico, emphasizing genitalic and larval morphology. USDA Tech. Bull. 1567: 1-122 (PDF)(3)
Lafontaine, J. D. & R. W. Poole 1991. Moths of America North of Mexico, Fascicle 25.1: p.44; pl.1.8-9
Pogue, M. G. 2005. The Plusiinae (Lepidoptera: Noctuidae) of Great Smoky Mountains National Park. Zootaxa 1032: 1–28 (1) (PDF)
Powell, J. A. & P. A. Opler 2009. Moths of Western North America. University of California Press. pl.49.25f, p.277 (4)
Internet References
Moth Photographers Group - species page
E.H. Strickland Museum - species page
live adult images plus common name reference [Ni Moth] and food plants (Moths and Butterflies of Europe and North Africa)
live adult images and other info (Keith Naylor, Barry Stewart, Paul Gay, UK Moths)
live larva image plus common name reference [Cabbage Looper] and description (John Jackman, Texas A&M U.)
food plants and flight season (Ohio State U.)
Southwestmoths.org - life cycle, host info and photos
Works Cited
1.The Plusiinae (Lepidoptera: Noctuidae) of Great Smoky Mountains National Park
Michael G, Pogue. 2005. Magnolia Press Zootaxa 1032: 1–28.
2.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.
3.The Plusiinae (Lepidoptera:Noctuidae) of America north of Mexico, emphasizing genitalic and larval morphology
Thomas D. Eichlin, Hugh B. Cunningham. 1978. United States Department of Agriculture Technical Bulletin 1567: 1-121.
4.Moths of Western North America
Powell and Opler. 2009. UC Press.