A re-description of the fossil damselfly Eolestes syntheticus Cockerell, 1940 (Odonata: Zygoptera: Eolestidae n. fam.) with description of new taxa from the Eocene of North America Author Greenwalt, Dale E. Author Bechly, Günter text Zootaxa 2014 2014-11-24 3887 2 138 156 journal article 10.11646/zootaxa.3887.2.2 395faf4e-7cb0-45b0-9f1a-348da32744f4 1175-5326 251053 D9275063-BD74-498E-B504-1421B50114A5 Family Eolestidae n. fam. ( Figures 1 , 2 , 3 , 4 , 5 , 6 , 7 ) Type genus. Eolestes Cockerell, 1940 . Diagnosis. 1) Pterostigma length ≥ 3 x width; 2) Oblique “ O ” crossvein present; 3) Postnodal crossveins mostly aligned; 4) MA slightly zigzagged distal of the nodus; 5) Ax2 at or just distal of the arculus; 6) Discoidal cell closed and its posterior internal angle acute; 7) IR2 and RP 3/4 origin closer to the arculus than the nodus; 8) IR1- RP 2, RP 2-IR2 and RP 3/4-MA fields with ≥ two supplementary longitudinal sectors; 9) MA-CuA (cubital) field with ≥ two supplementary longitudinal sectors; 10) IR2- RP 3/4 field not expanded distally.