Exotic Streaktail

Allograpta exotica · Order: Diptera · Family: Syrphidae

Also called: Exotic Streaktail Hoverfly, Exotic Stripetail, Exotic Stripetail Hover Fly, Syrphid fly

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Exotic Streaktail
Photo: Catherine C. Galley, CC BY

The Exotic Streaktail is a syrphid fly in the order Diptera. Its larvae hunt aphids, and the whole life cycle from egg to adult takes about two weeks, with adults living roughly ten days.

Source: Wikipedia

How to recognize it

Allograpta exotica belongs to the hoverfly family Syrphidae, which are true flies.

Source: Wikipedia

Where it lives

The larvae live where aphids are present and feed on them.

Source: Wikipedia

What it eats

Larvae are predators of aphids.

Source: Wikipedia

Life cycle

From egg to adult takes about 15 days, and adults live about 10 days.

Source: Wikipedia

Where it is found in the US

Recorded in 40 of 51 states and DC. Most records: California, Texas, Arizona, Florida, New Mexico, Georgia, Colorado, North Carolina.

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

Source: GBIF

Status: native in North America. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Same family (Syrphidae)

Sources

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

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

Text written 2026-10-23 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.