Bug FAQEctemnius maculosus
Ectemnius maculosus · Order: Hymenoptera · Family: Crabronidae
Ectemnius maculosus is a square-headed wasp that belongs to the family Crabronidae. It is native to the eastern United States and the southeastern part of Canada.
Source: Wikipedia
How to recognize it
Ectemnius maculosus is a square-headed wasp in the family Crabronidae.
Source: Wikipedia
Where it lives
It lives in the eastern United States and southeastern Canada.
Source: Wikipedia
Where it comes from
Its native range includes much of the eastern United States and southeasternmost Canada.
Source: Wikipedia
Where it is found in the US
Recorded in 36 of 51 states and DC. Most records: Vermont, Ohio, New York, Illinois, Minnesota, Massachusetts, Michigan, Maine.
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
Source: GBIF
More photos
Same family (Crabronidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Ectemnius_maculosus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.