The oldest fungus gnat of the tribe Exechiini in the lowermost Eocene Oise amber (Diptera: Mycetophilidae) Author Camier, Marie Author Nel, Andre text Zootaxa 2020 2020-01-10 4722 1 91 98 journal article 24389 10.11646/zootaxa.4722.1.9 e3687527-fca8-41e5-98d3-082e62dba904 1175-5326 3603734 Eoexechia gen. n. ( Figs 1–3 ) urn:lsid:zoobank.org:act: A785CF8A-E9CE-48FA-9CC3-E251D9941A35 Type species. Eoexechia gallica sp. n. Diagnosis. Antenna very long, with flagellomeres as broad as long; three ocelli; frontal furrow very short, confined to back of head; frontal tubercle bilobate and broad; hind tibial apical brush produced across tibia; well-developed empodium; costal vein distinctly produced beyond tip of R5; Sc twice as long as h; R1 short; M2 long. Etymology. Named after the Eocene period and the genus Exechia . Gender feminine.