Bug FAQAleochara sulcicollis
Aleochara sulcicollis · Order: Coleoptera · Family: Staphylinidae
The larvae live on macroalgae because they parasitize kelp flies. It is found across Central, North, and South America. The larval stage feeds on kelp flies that inhabit macroalgae.
Source: Wikipedia
Where it lives
Larvae are associated with macroalgae where kelp flies occur.
Source: Wikipedia
What it eats
Larvae are parasitoids of kelp flies that live on macroalgae.
Source: Wikipedia
Where it is found in the US
Recorded in 4 of 51 states and DC. Most records: California, Alaska, Kansas, Washington.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What does Aleochara sulcicollis eat?
Its larvae parasitize kelp flies that are found on macroalgae.
Source: Wikipedia
Same family (Staphylinidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Aleochara_sulcicollis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.