Polypedilum trigonum
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Diptera
- family: Chironomidae
- genus: Polypedilum
- species: Polypedilum trigonum
West Concord
Massachusetts- Madison
Wisconsin
United States
Polypedilum trigonum West Concord Madison