Tag Archives: Eocene

The 2nd-oldest Known Myrmicine Ant

Among the 20 or so insects represented in the Green River Formation (GRF) fossils that I currently have on loan, this rather obvious ant (family Formicidae) is the only one that is firmly assignable to the order Hymenoptera (wasps, bees … Continue reading

Posted in Formicidae, Hymenoptera | Tagged , , , , , , , , | 13 Comments

A 50-million-year-old midge

Several of the insect fossils collected from the Green River Formation (45–50 mya) that I am photographing appear to be flies, and specifically members of the “primitive” suborder Nematocera. This is not surprising, as the G.R. Formation of Colorado, Utah, and Wyoming, … Continue reading

Posted in Chironomidae, Diptera | Tagged , , , , , , , , , | 2 Comments

An elegant Eocene fly

Here is one of the more elegantly preserved specimens among the collection of Green River Formation fossil insects that I am photographing. It is obviously a fly (order Diptera), but I don’t agree with the preliminary identification of “Mosquito?” as indicated … Continue reading

Posted in Diptera, Mycetophilidae, Sciaridae | Tagged , , , , , , , , , , | 11 Comments