Carolinian Elegant

Meromacrus acutus · Order: Diptera · Family: Syrphidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Carolinian Elegant
Photo: Christina Butler, CC BY

The Carolinian Elegant hoverfly is 13 to 18 mm long and shows a black body with bright yellow markings that look like a wasp. Adults visit flowers for nectar and pollen, while the larvae live in water-filled tree holes and filter feed with a rat-tailed siphon.

Source: Wikipedia

How to recognize it

It has a striking black and yellow pattern that mimics wasps. The thorax is shiny black with vivid golden yellow markings.

Source: Wikipedia

Size

Length ranges from 13 to 18 mm (about half to three-quarters of an inch).

Source: Wikipedia

Where it lives

Adults are commonly found on flowers where they feed on nectar and pollen. Larvae develop in water-filled rot holes of trees, filtering organic matter.

Source: Wikipedia

What it eats

Adults eat flower nectar for energy and pollen for protein. Larvae are aquatic filter-feeders using a rat-tailed siphon.

Source: Wikipedia

Life cycle

Hoverflies can hover almost motionless in flight. The larvae are rat-tailed filter-feeders living in tree-hole water.

Source: Wikipedia

Where it comes from

It occurs in the eastern United States and parts of South America.

Source: Wikipedia

Lookalikes

Its black-and-yellow coloration makes it resemble a wasp.

Source: Wikipedia

Where it is found in the US

Recorded in 26 of 51 states and DC. Most records: Texas, Florida, North Carolina, Virginia, Maryland, Georgia, Louisiana, Tennessee.

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

Source: GBIF

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/Meromacrus_acutus

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.