CLADOENDESIS OF EPHEMEROPTERA
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Fig. 607–610. Centroptella (Chopralla) papuanica sp. n. 607–608 – left and right mandibles; 609 – subimaginal gonostyli crumpled under larval cuticle; 610 – larval abdominal segment X without caudalii (holotype). Abbreviations: gs1–gs3 – segments of gonostyli; m.gs – gonostylar muscle; m.sg – styligeral muscle; pgs – larval protogonostylus; usg – unistyliger.