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Species Samea multiplicalis - Salvinia Stem-borer - Hodges#5151

Salvinia Stem-borer Moth - Hodges #5151 - Samea multiplicalis Samea multiplicalis Moth - Samea multiplicalis Another Pyralid/Cambrid? - Samea multiplicalis Salvinia Stem-borer Moth - Hodges #5151 - Samea multiplicalis Samea multiplicalis Mottled brown moth with spread wings - Samea multiplicalis Unknown Lepidoptera - Samea multiplicalis
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Pyraloidea (Pyralid and Crambid Snout Moths)
Family Crambidae (Crambid Snout Moths)
Subfamily Spilomelinae
Tribe Nomophilini
Genus Samea
Species multiplicalis (Salvinia Stem-borer - Hodges#5151)
Hodges Number
Synonyms and other taxonomic changes
Samea multiplicalis (Guenée, 1854)
Isopteryx multiplicalis Guenée, 1854
Samea discessalis Walker, 1866
Young larvae are dirty-white to pale yellow, progressing to yellow-green in mature larvae.
Southeastern United States west to Louisiana, south to South America.
Generalist feeder first observed on waterhyacinth in Brazil. Used as biological control on several invasive species. Commonly feeds on waterlettuce (Pistia stratiotes), Salvinia, water fern (Azolla caroliniana), and duckweed (Lemna sp).
Life Cycle
Eggs laid singly between leaf hairs on host plants. Up to 150 eggs laid over span of 4 to 7 days. Larvae pupate within a silk cocoon in the inflated leaf petioles. Pupation typically lasts 4 to 10 days.
See Also

Moth Photographers Group has illustration for distinguishing the two species.
. . . . . .

Jason D. Roberts - how to separate Samea ecclesialis and Samea multiplicalis

Larva resembles Sameodes albiguttalis, both having plates with short bristles. Bristle position and larval coloration are important differences between the two closely related species.
Print References
Boisduval & Guenée Histoire Naturelle des Insectes Spécies Général des Lépidoptères 8: 227.
Walker, F. 1866 ["1865"] a: Supplement 4. – List of the Specimens of Lepidopterous Insects in the Collection of the British Museum, London 34: 1302-1303.