Bug FAQBent-lined Carpet
Costaconvexa centrostrigaria · Order: Lepidoptera · Family: Geometridae
Also called: Bent-line Carpet, Bent-line Carpet Moth
The bent-line carpet moth has a wingspan of about 1.7 to 2.3 cm and belongs to the Geometridae family. It is native across most of North America, except the Arctic, and has been introduced to parts of Europe and Atlantic islands. Larvae feed on plants in the Polygonum genus, and adults can be seen from spring through fall, depending on the region.
Source: Wikipedia
How to recognize it
The species is called Costaconvexa centrostrigaria, commonly known as the traveller or bent-line carpet moth.
Source: Wikipedia
Size
Its wingspan ranges from 17 to 23 mm (about 1.7 to 2.3 cm).
Source: Wikipedia
Where it lives
It lives throughout most of North America, except the Arctic.
Source: Wikipedia
What it eats
The caterpillars feed on species of the plant genus Polygonum.
Source: Wikipedia
Life cycle
There are two or more generations each year.
Source: Wikipedia
Where it comes from
Its native range covers most of North America, excluding the Arctic.
Source: Wikipedia
Lookalikes
It is a member of the Geometridae family, which includes many similar-looking moths.
Source: Wikipedia
Where it is found in the US
Recorded in 46 of 51 states and DC. Most records: Texas, Maryland, Alabama, North Carolina, Ohio, Pennsylvania, Virginia, New York.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Same family (Geometridae)
Willow BeautyPeribatodes rhomboidaria
Pale BeautyCampaea perlataDamages trees, gardens or crops
Large Lace-border MothScopula limboundataDamages trees, gardens or crops
Riband WaveIdaea aversata
Yellow Shell MothCamptogramma bilineata
Large Maple Spanworm MothProchoerodes lineolaDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Costaconvexa_centrostrigaria
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.