FIGURE 12 in A description of the second species of the genus Bleptus Eaton, 1885 (Ephemeroptera: Heptageniidae) from Japan, and phylogenetic relationships of two Bleptus mayflies inferred from mitochondrial and nuclear gene sequences

FIGURE 12. Nymphal head characteristics of the newly described Bleptus michinokuensis sp. nov. (4). Stereomicrographs (A, E) and SEM photographs (B−D, F−H). Ventral view of labium (A, B) and its enlargement (C, D). Ventral view of hypopharynx (E, F) and its enlargement (G, H). Gl: glossa, LbP: labial palp, Li: lingua, Lr: labrum, Pgl: paraglossa, Sli: superlingua. Scale bars: A, B, D, F = 500 µm; C, D, G, H = 100 µm.