Northern Cloudywing

Cecropterus pylades · Order: Lepidoptera · Family: Hesperiidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Northern Cloudywing
Photo: John Hibbard, CC BY

The northern cloudywing has a wingspan of about 32 to 47 mm and dark brown wings marked with small clear triangles. It lives in open boreal woodlands, forest edges and fields across Canada from Nova Scotia westward and throughout the United States down to California. Adults lay single eggs under host-plant leaves and are on the wing from May to July in the north (one generation) and from March to September in the south (two generations).

Source: Wikipedia

How to recognize it

Both sexes have dark brown wings with small triangular clear spots.

Source: Wikipedia

Size

The wingspan ranges from 32 mm to 47 mm.

Source: Wikipedia

Life cycle

Females lay eggs singly on the underside of host-plant leaves.

Source: Wikipedia

When you see it

In northern areas adults fly from May to July with one brood, while in southern areas they fly from March to September with two broods.

Source: Wikipedia

Where it comes from

It is found from Nova Scotia west across Canada and south into California and the rest of the United States.

Source: Wikipedia

Where it is found in the US

Recorded in 47 of 51 states and DC. Most records: Vermont, Arizona, New Mexico, Texas, South Carolina, California, Ohio, Michigan.

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

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Source: GBIF

More photos

Questions people ask

When are northern cloudywings active?

They are on the wing from May to July in the north (one generation) and from March to September in the south (two generations).

Source: Wikipedia

Same family (Hesperiidae)

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

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.