Lace-winged Roadside-Skipper

Amblyscirtes aesculapius (formerly Mastor aesculapius) · Order: Lepidoptera · Family: Hesperiidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Lace-winged Roadside-Skipper
Photo: Dennis Vollmar, CC BY

The lace-winged roadside-skipper is a small butterfly with a wingspan of about 30 to 38 mm. It lives in the eastern United States, from eastern Oklahoma and Texas eastward to Virginia and down the Atlantic coast to northern Florida. Adults fly from early spring through late summer and there are typically two generations each year.

Source: Wikipedia

How to recognize it

Amblyscirtes aesculapius, known as the lace-winged roadside-skipper, belongs to the skipper family Hesperiidae.

Source: Wikipedia

Size

Its wingspan ranges between 30 and 38 mm.

Source: Wikipedia

Where it lives

It is found from eastern Oklahoma and Texas east to southeast Virginia and along the Atlantic coast to northern Florida.

Source: Wikipedia

What it eats

Caterpillars probably feed on bamboo species of the genus Arundinaria.

Source: Wikipedia

Life cycle

Adults are on the wing from March through September. The species produces two generations each year.

Source: Wikipedia

When you see it

Flight period extends from early spring to early fall, roughly March to September.

Source: Wikipedia

Where it is found in the US

Recorded in 16 of 51 states and DC. Most records: South Carolina, North Carolina, Georgia, Virginia, Tennessee, Florida, Arkansas, Alabama.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

When can I see adult lace-winged roadside-skippers?

Adults are active from March through September.

Source: Wikipedia

How many generations does this butterfly have each year?

There are two generations per year.

Source: Wikipedia

What do the caterpillars eat?

The larvae probably feed on Arundinaria bamboo species.

Source: Wikipedia

Same family (Hesperiidae)

Sources

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

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

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

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.