Insecta - Diptera - Chironomidae
Full reference: A. L. Melander. 1949. A Report on Some Miocene Diptera from Florissant, Colorado. American Museum Novitates 1407:1-61
Belongs to Chironomus according to A. L. Melander 1949
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 patens, Chironomus pausatus, Chironomus primaevus, Chironomus pristinus, 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: BMNH I.7359, an exoskeleton. Its type locality is Florissant (BMNH Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Ecology:
Average measurements (in mm): body length 5.89