# Maple Looper Moth (*parallelia bistriaris*)

Meet the Maple Looper Moth, a fascinating nocturnal insect native to the rich deciduous forests of eastern North America. Belonging to the family Erebidae, this moth plays a quiet yet vital role in its woodland ecosystems. While the adults are elegant, cryptically colored flyers, it is the larval stage that often captures the attention of observers. The caterpillars are classic loopers or inchworms, moving with a charming looping gait that makes them look as if they are measuring the twigs they travel upon. Highly adapted to life among maple trees, they are masters of blending into their surroundings, seamlessly escaping the notice of predators. Their presence is a wonderful indicator of a healthy, biodiverse forest canopy, where they serve as an essential food source for nesting birds and nocturnal predators alike.

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 2
- **Habitat:** Found in deciduous forests, mixed woodlands, and suburban areas rich in maple trees across eastern North America.

![Maple Looper Moth](https://inaturalist-open-data.s3.amazonaws.com/photos/22859970/medium.jpg)

Photo: Dan MacNeal, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/22859970)

## Appearance

The adult Maple Looper Moth features a wingspan of approximately 3.5 to 4.5 centimeters. Its forewings are a warm, dusky grayish-brown, marked by two highly distinct, nearly straight pale lines that traverse the wing, bordered by a darker shade on the outer edge. The hindwings are a slightly lighter brownish-gray with a pale postmedial line. When resting flat against tree bark with its wings outstretched in a triangular shape, its intricate patterning provides excellent camouflage, mimicking the natural textures and shadows of tree bark.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Lepidoptera
- **Family:** Erebidae
- **Genus:** Parallelia

## Interesting facts

- Adult moths can be found visiting sap leaks on maple trees, taking advantage of the same sugary fluid that humans harvest for maple syrup.
- Despite being classified in the Erebidae family, its caterpillars move like loopers because they have reduced prolegs, a trait typical of Geometrid moths.
- The species name 'bistriaris' translates to 'two-striped' in reference to the two distinct bands crossing its forewings.

## Special abilities

- **Twig Mimicry:** The caterpillars can stiffen and hold their bodies at an angle from branches, perfectly mimicking small twigs to avoid detection by predators.
- **Acoustic Bat Evasion:** Like many erebid moths, they possess tympanic organs that can detect the high-frequency echolocation calls of insectivorous bats, allowing them to take evasive flight paths.
- **Cryptic Bark Camouflage:** The wing patterns of the adult moth match the textures of tree bark, rendering them virtually invisible to day-hunting birds when resting.

## Measurements & details

- **Length:** 2-3 cm
- **Wingspan:** 3-5 cm
- **Weight:** 0.0001-0.0003 kg
- **Lifespan:** 0-1 years
- **Speed:** 15 km/h
- **Clutch Size:** 50-200
- **Incubation:** 5-10 days

## Diet & Feeding

The larvae feed strictly on the foliage of deciduous trees, while the adult moths feed on sweet organic liquids like flower nectar, tree sap, and rotting fruit fluids.

- **Age differences:** Caterpillars are chewing folivores limited to maple leaves, whereas adults possess a proboscis to sip energy-rich nectar and tree fluids.
- **Primary Foods:** Red Maple leaves, Sugar Maple leaves, Flower nectar, Tree sap
- **Foraging Method:** Grazing

## Ecological connections

- **Host plant:** [Red Maple](https://www.snappit.app/explore/red-maple) (*Acer rubrum*) — The caterpillars utilize this tree as their primary host plant, feeding extensively on its leaves.
- **Eaten by:** [Eastern Phoebe](https://www.snappit.app/explore/eastern-phoebe) (*Sayornis phoebe*) — This insectivorous bird actively hunts the caterpillars during the nesting season to feed its young.
- **Eaten by:** [Big Brown Bat](https://www.snappit.app/explore/big-brown-bat) (*Eptesicus fuscus*) — This nocturnal mammal preys upon adult moths caught flying in the forest canopy at night.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Maple Looper Moth?

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 Maple Looper Moth?

2-3 cm

### What is Maple Looper Moth's wingspan?

3-5 cm

### How much does Maple Looper Moth weigh?

0.0001-0.0003 kg

### How long does Maple Looper Moth live?

0-1 years

### How fast can Maple Looper Moth move?

15 km/h

### What does Maple Looper Moth eat?

The larvae feed strictly on the foliage of deciduous trees, while the adult moths feed on sweet organic liquids like flower nectar, tree sap, and rotting fruit fluids.

### Where is Maple Looper Moth usually found?

Found in deciduous forests, mixed woodlands, and suburban areas rich in maple trees across eastern North America.

## 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

## 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: [Maple Looper Moth: Facts & Places to See — Snappit](https://www.snappit.app/explore/maple-looper-moth)
