| Lawn armyworm | 
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| Scientific classification | 
| Domain: | Eukaryota | 
 
| Kingdom: | Animalia | 
 
| Phylum: | Arthropoda | 
 
| Class: | Insecta | 
 
| Order: | Lepidoptera | 
 
| Superfamily: | Noctuoidea | 
 
| Family: | Noctuidae | 
 
| Genus: | Spodoptera | 
| Species: | S. mauritia | 
| Binomial name | 
| Spodoptera mauritia 
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| Synonyms | 
| Hadena mauritia Boisduval, 1833Agrotis aliena Walker, 1865Laphygma gratiosa Walker, 1865Orthosia margarita Hawthorne, 1897Agrotis yernauxi Hulstaert, 1924Spodoptera acronyctoides Guenée, 1852Spodoptera acronyctiformis Guenée, 1852Spodoptera filum Guenée, 1852Spodoptera nubes Guenée, 1852Euxoa ogasawarensis Matsumura, 1926Prodenia infecta Walker, 1856Prodenia insignata Walker, 1856Prodenia permunda Walker, 1857Agrotis transducta Walker, [1857]Agrotis bisignata Walker, 1865 (preocc. Celaena bisignata Walker, 1865)Laphygma squalida Walker, 1865Agrotis submarginalis Walker, 1865Hadena obliqua Walker, 1865Prodenia venustula Walker, 1865Hermonassa formosana Matsumura, 1913
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Spodoptera mauritia, the lawn armyworm or paddy swarming caterpillar, is a moth of the family Noctuidae. The species was first described by Jean Baptiste Boisduval in 1833. Able to eat many types of food, it is a major pest throughout the world.