Bug FAQBerosus exiguus
Berosus exiguus · Order: Coleoptera · Family: Hydrophilidae
These water scavenger beetles are tiny, only about 2 to 3.5 mm long. They have a yellow-brown head, impressed elytral stripes and faint spots on the wing covers. Berosus exiguus lives in the United States and also occurs in the Bahamas and Cuba.
Source: Wikipedia
How to recognize it
Look for a small beetle with a yellowish-brown head, distinct impressed elytral striae and often faint spots on the elytra.
Source: Wikipedia
Size
Adults measure between 2.0 and 3.5 mm in length.
Source: Wikipedia
Where it comes from
Its range includes the United States and the Caribbean islands of the Bahamas and Cuba.
Source: Wikipedia
Where it is found in the US
Recorded in 18 of 51 states and DC. Most records: Florida, Texas, Kansas, Oklahoma, Indiana, South Carolina, Virginia, Louisiana.
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 (Hydrophilidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Berosus_exiguus
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.