CLADOENDESIS OF EPHEMEROPTERA
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Kluge 2019: Figs 1-3 4-11 12-16 17-21 22-28 29-35 36-40 41-43 44-50 51-58 59-69 70-74 75-80 81-82 83-88  

  

Fig. 12–16. Mandibles of Guajirolus ektrapeloglossa from Quebrada Barrigón. 12–13 – right and left mandibles inside old cuticle before molt from penultimate to last larval instar; 14–15 – biting edges of right and left mandibles; 16 – lateral part of left mandible.