# Bent-Lined Carpet (*costaconvexa centrostrigaria*)

The Bent-Lined Carpet (Costaconvexa centrostrigaria) is a delicate and ubiquitous geometer moth found throughout North America. Named for the intricate, wavy lines that decorate its wings, this small insect is a master of camouflage, easily blending into tree bark and leaf litter. As members of the Geometridae family, their larvae are famously known as "inchworms," moving in a characteristic looping motion as they measure the earth beneath them.

Adaptable and widespread, the Bent-Lined Carpet can be found in a variety of environments ranging from overgrown fields and gardens to open woodlands. They are active from early spring through late fall, making them a familiar sight for keen-eyed naturalists. Their presence serves as a quiet reminder of the intricate biodiversity thriving in our own backyards, where they play a vital role as both minor pollinators and a steady food source for local predators.

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 2
- **Habitat:** Found in overgrown fields, meadows, gardens, and open woodlands, typically near low-growing herbaceous plants and weedy vegetation.

![Bent-Lined Carpet](https://inaturalist-open-data.s3.amazonaws.com/photos/332442173/medium.jpeg)

Photo: CC0 · [iNaturalist](https://www.inaturalist.org/photos/332442173)

## Appearance

This is a small moth with a wingspan ranging from 1.5 to 2.4 centimeters. Its forewings are typically a pale grayish-brown or tan, crossed by numerous fine, wavy, dark lines that give it a "carpet-like" pattern. The species exhibits sexual dimorphism: males often feature a distinct, dark reddish-brown or blackish median band across the center of their forewings, whereas females tend to have a more uniform, muted coloration with less pronounced banding. In their resting posture, they lay their wings flat against the surface, helping them blend seamlessly into their surroundings.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Lepidoptera
- **Family:** Geometridae
- **Genus:** Costaconvexa

## Interesting facts

- Bent-Lined Carpets are sexually dimorphic; you can often tell males apart from females by a thick, dark stripe across the middle of the male's wings.
- Like all geometer moths, the Bent-Lined Carpet's caterpillars are 'inchworms'—a name derived from their unique method of measuring the earth as they loop along.
- The common name 'Carpet' is shared by many moths in this subfamily because their complex, wavy wing patterns resemble ornate, antique woven rugs.
- This species is capable of producing multiple generations (broods) per year, allowing it to maintain high population numbers from early spring through late autumn.

## Special abilities

- **Cryptic Camouflage:** The intricate, wavy patterns on their wings allow them to blend perfectly against tree bark, dried leaves, and soil to avoid visually hunting predators.
- **Looping Locomotion:** As caterpillars, they lack middle prolegs, causing them to move by drawing their hind end up to their front legs in a distinctive looping gait.
- **Erratic Evasion Flight:** When disturbed, adult moths employ a highly erratic, fluttering flight pattern that makes it difficult for avian and insect predators to track and catch them.

## Measurements & details

- **Length:** 1-2 cm
- **Wingspan:** 1-3 cm
- **Weight:** 0.00001-0.00005 kg
- **Lifespan:** 0-1 years
- **Speed:** 5 km/h
- **Clutch Size:** 40-150
- **Incubation:** 4-10 days

## Diet & Feeding

Larvae feed on the leaves of various low-growing herbaceous plants, while adults sip nectar from small flowers.

- **Age differences:** Caterpillars possess mandibles to chew on herbaceous foliage, whereas adult moths rely on a tube-like proboscis to drink liquid nectar.
- **Primary Foods:** Smartweeds, Knotweeds, Clovers, Flower nectar
- **Foraging Method:** Foraging

## Ecological connections

- **Host plant:** Pennsylvania Smartweed (*Persicaria pensylvanica*) — Larvae use smartweeds as a primary food source for growth and development.
- **Eaten by:** [Little Brown Bat](https://www.snappit.app/explore/little-brown-bat) (*Myotis lucifugus*) — Adult moths are frequent prey for insectivorous bats hunting in open woodlands.
- **Eaten by:** [European Paper Wasp](https://www.snappit.app/explore/european-paper-wasp) (*Polistes dominula*) — Caterpillars are often hunted by predatory wasps that forage in weedy vegetation.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Bent-Lined Carpet?

Compare resting wing shape, forewing markings, antennae and body build. Small brown moths can hinge on fine details a phone photo can't always catch. Moth Identifier: upload a photo and compare the visible details.

### How long is Bent-Lined Carpet?

1-2 cm

### What is Bent-Lined Carpet's wingspan?

1-3 cm

### How much does Bent-Lined Carpet weigh?

0.00001-0.00005 kg

### How long does Bent-Lined Carpet live?

0-1 years

### How fast can Bent-Lined Carpet move?

5 km/h

### What does Bent-Lined Carpet eat?

Larvae feed on the leaves of various low-growing herbaceous plants, while adults sip nectar from small flowers.

### Where is Bent-Lined Carpet usually found?

Found in overgrown fields, meadows, gardens, and open woodlands, typically near low-growing herbaceous plants and weedy vegetation.

## Where to spot

- [Blackbird State Forest](https://www.snappit.app/guides/places/blackbird-state-forest) — Delaware, US · Forest
- [Buchanan State Forest](https://www.snappit.app/guides/places/buchanan-state-forest) — Pennsylvania, US · Forest
- [Abbeville Historic District](https://www.snappit.app/guides/places/abbeville-historic-district) — South Carolina, US · Historic District

[View all places to see Bent-Lined Carpet](https://www.snappit.app/guides/where-to-see/bent-lined-carpet)

## More Insects

- [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*)
- [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*)
- [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*)
- [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*)

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Source: [Bent-Lined Carpet: Facts & Places to See — Snappit](https://www.snappit.app/explore/bent-lined-carpet)
