Species: modestum (FRIC, 1876) FRITSCH, 1881
Eytmology: Latin, modestus, "frugal."
= Microdon modestus FRIC, 1876

Holotype: NMP M464

Locality: Humbolt Mine, Nyrany (Nurschan), Plzen Basin, Bohemia, Czech Republic.

Horizon: Gaskohl.

Biostratigraphy:

Age: Westphalian D, Lower Upper Silesian Series, Desmoniensean, Upper Myachkovskian Stage, Upper Moscovian Epoch, Late Carboniferous (Late Pennsylvanian).

Material: Right mandible.

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