Bug FAQPantropical mini-ponerine ant
Hypoponera punctatissima · Order: Hymenoptera · Family: Formicidae
Also called: Roger's Crypt Ant, Roger's ant
Workers are tiny, about 2.5-3.2 mm long, and range from yellow-brown to dark-brown in color. Queens look like workers but are a bit larger (3.5-3.8 mm) and retain wings. The species is native to parts of Africa and the Gulf of Guinea, and it has become invasive in many warm regions worldwide.
Source: Wikipedia
How to recognize it
The ant has triangular mandibles, 12-segmented antennae, and a single-segmented petiole.
Source: Wikipedia
Size
Workers measure 2.5-3.2 mm; queens are slightly larger at 3.5-3.8 mm.
Source: Wikipedia
Is it a pest in the house?
In many western regions it is considered an invasive pest, while in eastern and northern areas it is limited to heated indoor spaces.
Source: Wikipedia
Where it lives
It thrives in heated buildings and greenhouses across eastern and northern Europe, parts of Canada, northern US states, and central Russia. It is invasive in western Europe, southern US states, California, the Middle East, the Yucatán, Panama and Venezuela.
Source: Wikipedia
Where it comes from
It is also native to southern African countries such as Angola, Zambia, Mozambique, Botswana and South Africa.
Source: Wikipedia
Lookalikes
It resembles the closely related Hypoponera ergatandria in colony size and appearance. Queens look much like workers, differing mainly by size and the presence of wings.
Source: Wikipedia
Where it is found in the US
Recorded in 15 of 51 states and DC. Most records: Florida, California, Illinois, Hawaii, Texas, Mississippi, Arizona, Louisiana.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Months it is reported in the US
Source: GBIF
Questions people ask
Where are these ants likely to be found in my home?
They are usually confined to heated rooms, greenhouses or other warm indoor areas.
Source: Wikipedia
Are they similar to any other ant species?
Yes, they are often confused with Hypoponera ergatandria because they look alike and have similar colony sizes.
Source: Wikipedia
How can I tell a queen from a worker?
Queens are a bit larger and retain wings, while workers lack wings.
Source: Wikipedia
Same family (Formicidae)
Eastern Black Carpenter AntCamponotus pennsylvanicusCan bite
Red Imported Fire AntSolenopsis invictaCan sting
American Winter AntPrenolepis imparis
Argentine AntLinepithema humileNuisance, not dangerous
Immigrant Pavement AntTetramorium immigransCan sting
Odorous House AntTapinoma sessileCan damage your homeSources
- Wikipedia: https://en.wikipedia.org/wiki/Hypoponera_punctatissima
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.