Carinate Armored-Resin bee

Heriades carinata · Order: Hymenoptera · Family: Megachilidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Carinate Armored-Resin bee
Photo: Ari B, CC BY

It is the first recorded gynandromorph in its genus. It nests in twigs, preferring openings about 1/8 inch wide. It is found in the United States and southern Canada.

Source: Wikipedia

How to recognize it

It is the first recorded gynandromorph in its genus.

Source: Wikipedia

Where it lives

It nests in twigs, using holes about 0.125 inch in diameter.

Source: Wikipedia

What it eats

The female adds pollen to each cell before laying an egg and sealing it.

Source: Wikipedia

Life cycle

Inside the nest she builds consecutive resin-lined cells, each stocked with pollen before an egg is deposited.

Source: Wikipedia

Where it comes from

It occurs in the United States and southern Canada.

Source: Wikipedia

Where it is found in the US

Recorded in 44 of 51 states and DC. Most records: Minnesota, Utah, Michigan, Oregon, New York, Pennsylvania, Washington, Arizona.

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

Source: GBIF

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

Months it is reported in the US

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Source: GBIF

More photos

Same family (Megachilidae)

Sources

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

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 2026-10-23.

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.