Insects That Look Like Pine Needles

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Several insects take on the shape and color of pine needles.
Several insects take on the shape and color of pine needles. (Image: Jupiterimages/Photos.com/Getty Images)

Many insects have developed natural camouflage to protect them from birds and other predators. Larvae and other insects, particularly those that feed on coniferous trees, often take on the shape, coloring or pattern of pine needles.

Stick Insect (Phasmida)

Stick insects, or walking sticks, are usually brown or green, and range in size from ½ to 21 inches long. Though the narrow insects are often compared to twigs, the green ones bear a strong resemblance to pine needles, especially when they hold their legs close to their bodies. Besides using camouflage as a defense mechanism, stick insects can “play dead” or shed a limb to thwart predators.

Walking sticks are narrow and tough, like pine needles.
Walking sticks are narrow and tough, like pine needles. (Image: stick insect image by vladislav susoy from Fotolia.com)

Brimstone Moth Caterpillar (Opisthograptis Luteolata)

Brimstone moth caterpillars are usually brown, but sometimes take on a green coloring. These larvae can reach lengths of about 33 mm, and have a bump protruding from their sixth segment. To blend in with a tree’s natural needles or twigs, brimstone moth caterpillars can “stand” on a tree branch and extend their bodies outward.

Pine Sawfly Larva (Zadiprion)

Pine sawfly larvae are yellow green or dark green with black, tan or orange heads. They feed on pine trees in the Southwest, feeding on the outer tissues of pine needles. Adult pine sawflies lay their eggs inside of pine needles. The larvae tend to attack the same specific trees year after year, leading to slower tree growth or death.

Pine Butterfly Larva (Neophasia menapia)

Pine butterfly larvae are 2.5 cm long, and dark green with white stripes and light green heads. They are often confused with pine sawfly larvae, as both insects feed on and resemble pine needles. Like pine sawfly larvae, they are considered pests, as they have contributed to defoliation in the Pacific Northwest.

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