BioNet

River & Stream Biological Monitoring

Fish and Benthic Macroinvertebrate Surveys

Physical Habitat Assessments

Optioservus fastiditus Riffle Beetles

Photo by <a href="http://www.shl.uiowa.edu" rel="nofollow">State Hygienic Laboratory</a> Limnology

Photo by State Hygienic Laboratory

Taxa Hierarchy

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Elmidae

Genus

Optioservus

Species

fastiditus

ITIS Links

TSN

114190

Parent TSN

114177

Metric Values

Tolerance

4.0

FFG

Scraper

Habit

Unidentified

CW Ind

False

Assessment Program Statistics

Total Individuals Collected

3,362

Number of Unique Sites Collected

159

Taxa Distribution Map