Ash Sphinx

Manduca jasminearum · Order: Lepidoptera · Family: Sphingidae

Also called: Ash Sphinx Moth

Damages trees, gardens or crops. Its larvae feed on ash and other trees, damaging them.

Source: Wikipedia

Ash Sphinx
Photo: Teá Montagna, CC BY

The ash sphinx has a wingspan of about 84 to 105 mm. Adults appear in two generations from May through September.

Source: Wikipedia

Size

Wingspan ranges from 84 to 105 mm.

Source: Wikipedia

What it eats

Adults sip nectar from flowers. Larvae mainly eat ash leaves but will also feed on lilac and elm species.

Source: Wikipedia

Life cycle

There are two generations each year, with adults on the wing from May to September.

Source: Wikipedia

When you see it

Adults are active from May through September, producing two generations.

Source: Wikipedia

Where it is found in the US

Recorded in 28 of 51 states and DC. Most records: Ohio, Massachusetts, Alabama, North Carolina, Virginia, Pennsylvania, Connecticut, Tennessee.

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

Source: GBIF

Status: native in North America; native in Canada. Source: iNaturalist

Months it is reported in the US

JFMAMJJASOND

Source: GBIF

More photos

Questions people ask

What do ash sphinx larvae eat?

The caterpillars mainly feed on ash trees, but they have also been seen eating lilac and elm leaves.

Source: Wikipedia

When are adult ash sphinx moths active?

Adults appear in two generations from May through September.

Source: Wikipedia

How large is the ash sphinx?

Its wingspan measures between 84 and 105 mm.

Source: Wikipedia

Same family (Sphingidae)

Sources

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

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.