Elsa Sphinx

Sagenosoma elsa · Order: Lepidoptera · Family: Sphingidae

Also called: Elsa's Sphinx, Elsa Sphinx Moth

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Elsa Sphinx
Photo: czernybug, CC BY

The elsa sphinx moth has forewings that measure about 23 to 38 mm in length. Adults fly from mid-April through mid-August, producing one or two generations each year.

Source: Wikipedia

Size

Forewing length ranges from 23 mm to 38 mm.

Source: Wikipedia

What it eats

Caterpillars have been recorded feeding on the plant Lycium pallidum.

Source: Wikipedia

Life cycle

Adults are on the wing from mid-April to mid-August, with one or two generations per year.

Source: Wikipedia

When you see it

Flight period spans mid-April through mid-August.

Source: Wikipedia

Where it comes from

The species occurs in the southwestern United States and northern Mexico.

Source: Wikipedia

Where it is found in the US

Recorded in 4 of 51 states and DC. Most records: Arizona, New Mexico, Colorado, Utah.

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

Source: GBIF

Status: native in North America; 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 are elsa sphinx moths active?

Adults fly from mid-April to mid-August, producing one or two generations each year.

Source: Wikipedia

What do elsa sphinx caterpillars eat?

The larvae have been recorded feeding on Lycium pallidum.

Source: Wikipedia

How big are elsa sphinx moths?

Their forewings measure between 23 mm and 38 mm in length.

Source: Wikipedia

Same family (Sphingidae)

Sources

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

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

Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.

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.