Common Tan Wave

Pleuroprucha insulsaria · Order: Lepidoptera · Family: Geometridae

Also called: Common Tan Wave Moth

Damages trees, gardens or crops. The larvae can damage a variety of garden and crop plants such as corn, oak, chestnut and willow.

Source: Wikipedia

Common Tan Wave
Photo: Ilona, CC BY-SA

The common tan wave moth has a wingspan of about 14-21 mm and belongs to the Geometridae family. Adults fly from early spring to autumn, depending on the region.

Source: Wikipedia

Size

Its wingspan ranges from 14 to 21 mm.

Source: Wikipedia

What it eats

The caterpillars eat many plants, including nightshade, bedstraw, corn, goldenrod, chestnut, oak and willow.

Source: Wikipedia

When you see it

Adults are on the wing from March or April through October in the south, and from June to October in the north.

Source: Wikipedia

Where it comes from

Its native range covers the same eastern North American area.

Source: Wikipedia

Where it is found in the US

Recorded in 39 of 51 states and DC. Most records: Texas, Maryland, Pennsylvania, Illinois, Ohio, North Carolina, Alabama, Virginia.

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

JFMAMJJASOND

Source: GBIF

More photos

Same family (Geometridae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Pleuroprucha_insulsaria

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.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.