FIGURES 138–145. C in Review of selected species of Campsurus Eaton 1868 (Ephemeroptera: Polymitarcyidae), with description of eleven new species and a key to male imagos of the genus

FIGURES 138–145. C. segnis, holotype male imago: 138, genitalia, v.v.; 139, penes, v.v. Campsurus cotaxe sp. nov.: 140, genitalia, v.v.; 141, pedestal, v.v.; 142, penes, v.v.; 143, penes, l.v.; 144, female sternum VIII with detail of socket. C. amapaensis: 145, partial view of female sternum VIII with detail of socket.