Hump-backed Beewolf

Philanthus gibbosus · Order: Hymenoptera · Family: Crabronidae

Also called: Humped Beewolf

Can sting. Its sting is painful enough to deter most predators.

Source: Wikipedia

Hump-backed Beewolf
Photo: skitterbug, CC BY

Females hunt bees to provision their carnivorous larvae, while adults sip nectar from flowers; they build nests in sandy soils of coastal or deciduous forest areas in the Midwest and western Appalachians. They produce two generations each year, starting nest building in early June and completing it by early July, after which the females die after about three weeks of egg-laying.

Source: Wikipedia

How to recognize it

Large, deep punctures on the abdomen make it easy to tell apart from other Philanthus species.

Source: Wikipedia

Size

Adults measure roughly 10 to 12 mm in length, with females usually nearer the smaller end.

Source: Wikipedia

Does it bite or sting?

Its sting is painful and serves to deter most predators.

Source: Wikipedia

Where it lives

It prefers sandy soils in coastal areas and also lives in deciduous forest habitats.

Source: Wikipedia

What it eats

Females hunt bees to feed their carnivorous larvae, while adults feed on flower nectar.

Source: Wikipedia

Life cycle

Two generations are produced each year; females spend about three weeks provisioning nests before dying at season’s end.

Source: Wikipedia

When you see it

Nesting activity begins in the first or second week of June and peaks by early July.

Source: Wikipedia

Where it is found in the US

Recorded in 49 of 51 states and DC. Most records: Massachusetts, New York, Maryland, Virginia, Illinois, Ohio, Minnesota, Pennsylvania.

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

Does the hump-backed beewolf bite or sting?

It can sting, and the sting is painful enough to discourage most predators.

Source: Wikipedia

What do adult beewolves eat?

Adults feed on nectar from flowers.

Source: Wikipedia

Where might I find this wasp?

Look for them in sandy coastal soils or deciduous forests in the Midwest and western Appalachians.

Source: Wikipedia

Same family (Crabronidae)

Sources

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

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

Text written 2026-10-22 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.