FIGURES 101–107 in Review of the Kimminsula-complex (Ephemeroptera, Leptophlebiidae)

FIGURES 101–107. Petersula heptagenoides sp. n., larva. 101, labrum in longitudinal section; 102, anterior margin of labrum, focus on dorsal side; 103, the same, focus on ventral side; 104, proximal-lateral margin of labrum; 105, cuticle of head of male larva; 106, labrum with hypoderm and muscles; 107, its muscle-depressor enlarged. Abbreviations: a.m, initial anterior margin; anter.r, anterior transverse setal row; cly, clypeus; c.md.a and c.md.p, anterior and posterior mandibular condyles visible on ventral side of head through cuticle; depr, muscle-depressor; in, incision laterad of posterior mandibular condyle; in-a and in-p, convexities anteriad and posteriad of incision; poster.r, posterior transverse setal row; v.s, ventral setae; v-a.s, ventro-anterior strip of setae.