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The adult male is a white moth with a wingspan of about 12 millimeters. There are two female morphologies. Most females are flightless and live on the surface of the water or just submersed. A few females have longer wings and fly. This is an
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This moth is used as a biocontrol agent on watermilfoil, but carefully, because it lacks host specificity and will attack other plant species, including natives. It tends to prefer
450:; most of its life cycle takes place in the water. The female is fertilized at the surface and dives to lay egg masses on aquatic plants, such as watermilfoil. The
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accidentally. It is established in much of the northeastern United States, where it appears to have the ability to reduce watermilfoil infestations.
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inside an underwater cocoon filled with air. Upon emergence, males and flighted females swim to the water surface and fly away.
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stems as it feeds, which causes significant damage to the plant as stems and leaves die or break off. The larva
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over other plants. This is a
European moth, but it was found in Canada in the 1920s, having been probably
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emerges and bores into the stem of the plant, gluing together plant material to create a shelter. It
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Biological
Control of Invasive Plants in the United States
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Figs. 2 larva after final moult 2a same highly magnified
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517:. Corvallis: Oregon State University Press, 171.
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495:Global Information System on Pyraloidea
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924:Taxa named by James Francis Stephens
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709:a3e190e7-16b2-4f53-a328-73150104cf76
513:Coombs, E. M., et al., Eds. (2004).
399:in 1775. It is used as an agent of
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250:Denis & Schiffermüller, 1775
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909:Biological pest control insects
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1:
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852:. You can help Knowledge by
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377:in 1829. Its only species,
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287:Acentropus nevae obscurus
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50:Scientific classification
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553:Cornell Species Profile
401:biological pest control
934:Taxa described in 1829
919:Moths of North America
848:-related article is a
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375:James Francis Stephens
904:Monotypic moth genera
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432:
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416:Myriophyllum spicatum
412:Eurasian watermilfoil
279:Acentropus latipennis
271:Acentropus germanicus
704:Fauna Europaea (new)
537:at Wikimedia Commons
397:Ignaz Schiffermüller
380:Acentria ephemerella
369:genus of the family
263:Acentropus garnonsii
176:Acentria ephemerella
391:, was described by
330:G.-A. Olivier, 1791
255:Acentropus badensis
158:A. ephemerella
939:Acentropinae stubs
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808:Open Tree of Life
569:Taxon identifiers
533:Media related to
385:watermilfoil moth
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545:Data related to
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335:Phryganea nivosa
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303:Bombyx phryganea
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295:Acentropus newae
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914:Moths of Europe
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491:"GlobIZ search"
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433:Wingless female
425:Wingless female
343:Setina ephemera
327:Phryganea nivea
290:Tengström, 1869
266:J. Curtis, 1834
242:Acentria niveus
211:J. Curtis, 1834
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523:External links
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448:aquatic insect
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338:Stephens, 1834
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322:Stephens, 1833
319:Zancle hansoni
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311:Bombyx sembris
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298:Kolenati, 1858
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282:Möschler, 1860
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237:Acentria nivea
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16:Genus of moths
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558:Photo gallery
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408:aquatic plant
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393:Michael Denis
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373:described by
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167:Binomial name
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899:Acentropinae
854:expanding it
846:Acentropinae
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498:. Retrieved
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403:against the
389:water veneer
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346:Hübner, 1819
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127:Acentropinae
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730:iNaturalist
601:Wikispecies
467:M. spicatum
123:Subfamily:
107:Lepidoptera
893:Categories
500:2011-10-11
477:References
471:introduced
208:Acentropus
87:Arthropoda
410:known as
371:Crambidae
364:monotypic
152:Species:
117:Crambidae
73:Kingdom:
67:Eukaryota
823:acentria
769:LepIndex
639:BugGuide
615:BioLib:
607:Acentria
592:Q4673088
586:Wikidata
577:Acentria
547:Acentria
535:Acentria
359:Acentria
233:Species
196:Synonyms
144:Stephens
138:Acentria
113:Family:
83:Phylum:
77:Animalia
63:Domain:
25:Acentria
813:3170262
800:1666817
748:1297356
722:1881186
460:pupates
456:girdles
405:noxious
133:Genus:
103:Order:
97:Insecta
93:Class:
761:117741
735:172681
696:443045
683:1ACENG
383:, the
224:Zancle
216:Setina
204:Genus
189:, 1775
185:&
146:, 1829
844:This
820:PPE:
743:IRMNG
670:48237
657:8ZYLL
644:10907
618:50773
452:larva
362:is a
183:Denis
850:stub
795:NCBI
774:7180
756:ITIS
717:GBIF
678:EPPO
631:7812
626:BOLD
395:and
367:moth
782:NBN
665:EoL
652:CoL
418:).
387:or
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