First instar nymphs of Yoraperla uenoi. A. Habitus, dorsal view, scanning electron microscopy (SEM); B. Habitus, dorsal view, same specimen as in (A), light microscopy; C. Mouth parts, ventral view, SEM, right side of maxillary pulp artificially lacking; D. Middle leg, SEM. Abbreviations: An, antenna; Ce, cercus; Cx, coxa; Fe, femur; Ga, galea; Gl, glossa; H, head; La, lacinia; LbP, labial palp; Lr, labrum; Md, mandible; Msn, mesonotum; Mtn, metanotum; Pgl, paraglossa; Pta, pretarsus; St, stipes; Ta, tarsus; Ti, tibia; Tr, trochanter. Scale bars: 100 µm (A, B); 20 µm (C, D).