Bug FAQBindweed Turret Bee
Diadasia bituberculata · Order: Hymenoptera · Family: Apidae
It nests on dry, flat ground such as parking lots or trails, is active from April to July, and seals its nests in late spring to early summer.
Source: Wikipedia
Where it lives
It builds nests on dry, flat ground such as parking lots or trails.
Source: Wikipedia
Life cycle
Females lay one or two eggs per nest; the larvae eat the supplied pollen until they become adults.
Source: Wikipedia
When you see it
Adults are active from April to July and seal their nests toward late spring and early summer.
Source: Wikipedia
Where it is found in the US
Recorded in 2 of 51 states and DC. Most records: California, Oregon.
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 (Apidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Diadasia_bituberculata
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.