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Species Parapoynx obscuralis - Obscure Pondweed Moth - Hodges#4760

Underwing Moth - Parapoynx obscuralis Moth - Parapoynx obscuralis Obscure Pondweed Moth - Hodges#4760 - Parapoynx obscuralis Moth - Parapoynx obscuralis Obscure Pondweed Moth - Parapoynx obscuralis Unknown - Parapoynx obscuralis Parapoynx obscuralis Obscure Pondweed  - Parapoynx obscuralis 3041643 MOTH - Parapoynx obscuralis
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 Acentropinae
Tribe Nymphulini
Genus Parapoynx
Species obscuralis (Obscure Pondweed Moth - Hodges#4760)
Hodges Number
Other Common Names
Vallisneria Leafcutter
Synonyms and other taxonomic changes
Parapoynx obscuralis – (Grote, 1881)
* phylogenetic sequence #143650
wingspan 17-26 mm
Adult: forewing of male white with variable brown shading and thick white PM line; forewing of female nearly all dark brown; hindwing white with brown or blackish ST band and orange terminal band

Larva: branched gills on all body segments except head and prothorax (applies to all larvae in genus Parapoynx)
eastern North America (Nova Scotia to Florida, west to Texas, north to Wisconsin and Ontario)
larvae are aquatic, developing in rivers and streams (but apparently not ponds or other standing water); adults are nocturnal and attracted to light
adults fly from June to August
larvae feed on eelgrass (Vallisneria, pondweed (Potamogeton), yellow waterlily (Nuphar), and other aquatic plants
larva is a casemaker
See Also
Parapoynx seminealis
Print References
Hodges, Ronald W. (ed.), 1983; Check List of the Lepidoptera of America North of Mexico (1)
Internet References
Moth Photographers Group - range map, photos of living and pinned adults.
BOLD - Barcode of Life Data Systems - species account with collection map and photos of pinned adults.
live adult images plus description and food plants (Lynn Scott, Ontario)
characteristics of Parapoynx larvae in article on Asian Hydrilla Moth (Ted Center et al, U. of Florida)
presence in Florida; list and common name reference [Vallisneria Leafcutter] (Michael Thomas, Florida State Collection of Arthropods)
presence in Texas; list (James Gillaspy, U. of Texas)
presence in Ontario; list (NHIC; Ontario Ministry of Natural Resources)
Works Cited
1.Check list of the Lepidoptera of America north of Mexico.
Hodges, et al. (editors). 1983. E. W. Classey, London. 284 pp.