two-lined spittlebug

insect

Also known as: Prosapia bicincta

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Last updated

July 17, 2026

Quick Summary

The two-lined spittlebug (Prosapia bicincta) is a common insect found in eastern North America. These insects are small, typically less than 1.5 cm (0.6 inches) long. Adult two-lined spittlebugs are dark brown with two distinctive red-orange stripes and feed on grasses, weeds, and holly.1

The immature stage, known as a nymph, secretes a frothy substance called spittle. This spittle is created by mixing fluid from the anus with secretions from abdominal glands, and air bubbles are introduced to form the protective foam. The spittle covers the nymph, shielding it from predators and preventing dehydration. Nymphs are often found on grasses in late spring. Unlike the nymphs, adult spittlebugs do not produce spittle.21

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The two-lined spittlebug (Prosapia bicincta) is one of the most common species in eastern North America. Adults are dark brown with two red-orange stripes and feed on grasses, weeds, and holly. Nymphs are yellow and are often found on grasses in late spring.
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The two-lined spittlebug (Prosapia bicincta) is one of the most common species in eastern North America. Adults are dark brown with two red-orange stripes and feed on grasses, weeds, and holly. Nymphs are yellow and are often found on grasses in late spring.
Read More