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BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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

National Moth Week 2020 photos of insects and people.

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

Previous events


Genus Mythimna

Armyworm (October) - Mythimna unipuncta Lesser Wainscot - Mythimna oxygala Mythimna unipuncta - Armyworm Moth - Mythimna unipuncta Mythimna unipuncta Noctuidae: Mythimna oxygala - Mythimna oxygala Moth - Apamea or Lithophane  - Mythimna unipuncta Mythimna unipuncta Armyworm Moth - Mythimna unipuncta
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 Leucaniini
Genus Mythimna
Synonyms and other taxonomic changes
Mythimna Ochsenheimer, 1816; Schmett. Eur. 4: 78
syn. Philostola Billberg, 1820
syn. Aletia Hübner, [1821]; Verz. bek. Schmett. (15): 239
syn. Hyphilare Hübner, [1821]; Verz. bek. Schmett. (15): 239
syn. Mithimna Sodoffsky, 1837; Bull. Soc. imp. Nat. Moscou 1837 (6): 87
syn. Hyperiodes Warren, 1910; in Seitz, Grosschmett. Erde, 3: 94
syn. Hypopteridia Warren, 1912
syn. Pseudaletia Franclemont, 1951; Proc. Ent. Soc. Wash. 53 (2) : 64
syn. Sablia Sukhareva, 1973; Ent. Review, 52: 405, 413
syn. Dysaletia Sugi, 1982
syn. Morphopoliana Hreblay & Legrain, 1996
syn. Allitoria Beck, 1996
syn. Conithimna, Gruathimna, Foehstia, Pudothimna, Ferrathimna, Allitoria Beck, 1999
4 species in North America (includes the former Aletia and Psuedaletia - 2 species each - listed at
3 species in Canada (CBIF)
represented coast to coast in North America, north to the arctic
The Armyworm (formerly Pseudaletia unipuncta) is now included in Mythimna
Internet References
pinned adult images of all 3 species occurring in Canada (CBIF)
taxonomic notes explaining the dissolution of Aletia and Pseudaletia into the genus Mythimna (CBIF)