Insecta - Diptera - Chironomidae

Full reference: S. H. Scudder. 1877. The First Discovered Traces of Fossil Insects in the American Tertiaries. Bulletin of the United States Geological and Geographical Survey of the Territories 3:741-762

Belongs to Chironomus according to S. H. Scudder 1890

Sister taxa: Chironomus abietarius, Chironomus aquisextanus, Chironomus caliginosus, Chironomus depletus, Chironomus elegantulus, Chironomus inglorius, Chironomus lacunus, Chironomus lacus, Chironomus meticulosus, Chironomus meyeri, Chironomus obsoletus, Chironomus oeningensis, Chironomus paludosus, Chironomus pausatus, Chironomus primaevus, Chironomus pristinus, Chironomus proterus, Chironomus requiescens, Chironomus scudderiellus, Chironomus septus, Chironomus sepultus, Chironomus sepultus, Chironomus serresi, Chironomus subobscurus, Chironomus tenebricosus, Chironomus tenebrosus, Chironomus uliginosus, Chironomus umbraticus, Chironomus umbrosus, Chironomus vagabundus, Chironomus venerabilis

Type specimen: Its type locality is Chagrin Valley, which is in a Bridgerian lacustrine - large shale in the Green River Formation of Colorado

Ecology:

Average measurements (in mm): antennae length 1.00, body length 3.00, wing length 2.10