Ilybiosoma lugens
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Ilybiosoma
- species: Ilybiosoma lugens
Monterey- Pacific Grove
California- Lakeview
Oregon
United States
Ilybiosoma lugens Monterey Pacific Grove Lakeview