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Species Costaconvexa centrostrigaria - Bent-line Carpet - Hodges#7416

Unknown moth #4 - Costaconvexa centrostrigaria Bent-line Carpet Moth - Costaconvexa centrostrigaria Unidentified moth - Costaconvexa centrostrigaria Costaconvexa centrostrigaria Bent-line Carpet - Costaconvexa centrostrigaria Moth after landing on flower - Costaconvexa centrostrigaria geometrid moth sp? - Costaconvexa centrostrigaria Moth to porch light  - Costaconvexa centrostrigaria
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Larentiinae
Tribe Xanthorhoini
Genus Costaconvexa
Species centrostrigaria (Bent-line Carpet - Hodges#7416)
Hodges Number
Synonyms and other taxonomic changes
formerly Orthonama centrostrigaria.
Placed in genus Costaconvexa by Malcolm Scoble et al in the 1999 catalog, Geometrid Moths of the World.
the only species in this genus in North America
wingspan 17-23 mm
Adult: wings pale gray to reddish-brown; AM and PM lines form dark brown bands; PM line ends abruptly midway across wing (i.e. lower half absent); small black discal spot on all wings. Sexually dimorphic: male wings mostly gray; female has dark median area.
most of North America except Alberta and the arctic
wet open areas and waste places were foodplants grow; adults are nocturnal and come to light
Adults fly from May to October in Ontario, March to November in northeastern states, and all year in Texas and the west.
Larvae feed on Polygonum species (knotweed, smartweed).
Life Cycle
two or more generations per year
See Also
The Gem (Orthonama obstipata) has an oblique blackish dash at apex of forewing - lacking in Bent-line Carpet
Print References
Covell, p. 386, plate 50 #1, 4 (1)
Miller, #98, p. 62 (2)
Wagner, p. 214--photo of larva (3)
Internet References
Moth Photographers Group - species page with photographs of living and pinned adults.
live adult images (Claire Curry, Texas)
live adult images of female and male (James Adams, Dalton State College, Georgia)
adult images (Larry Line, Maryland)
live adult images plus common name reference, detailed description, foodplants, flight season, life cycles (Lynn Scott, Ontario)
live adult image showing underside of wings (John Himmelman, Connecticut)
pinned adult image plus description, foodplants, flight season, similar species (Jeff Miller, Macromoths of Northwest Forests and Woodlands, USGS)
presence in Florida; list (John Heppner, Florida State Collection of Arthropods)
presence in California; list (U. of California at Berkeley)
distribution in Canada list of provinces (CBIF)
Works Cited
1.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.
2.Macromoths of Northwest Forests and Woodlands
Jeffrey Miller, Paul Hammond. 2000. USDA Forest Service, FHTET-98-18.
3.Caterpillars of Eastern North America
David L. Wagner. 2005. Princeton University Press.