CLADOENDESIS OF EPHEMEROPTERA
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Figs 46–49. Male genitals of Indocloeon s. str. 46 – imaginal genitals of Indocloeon (Indocloeon) secundum (holotype) (1+2 – proximal segment of gonostylus; 3 – distal segment of gonostylus; m.d – dorsal muscle of penis; m.gs – gonostylar muscle; m.gv – gonovectal muscle; m.s., – median sterno-styligeral muscle); 47 – their subimaginal exuviae; 48 – gonostylus of Indocloeon (Indocloeon) primum; 49 – its subimaginal exuviae.