Figs 3-7 in Body pigmentation during embryogenesis first found in stoneflies: a case of Megaperlodes niger Yokoyama, Isobe & Yamamoto, 1990 (Insecta: Plecoptera, Perlodidae)

Figs 3-7 – Embryonic development and the first instar nymph of Megaperlodes niger. 3–6, Embryonic development, Stage 10 (3), Early Stage 11 (4), Later Stage 11 (5), Stage 12 (6), lateral view, anterior at the top; 7, First instar nymph, habitus, dorsal view, anterior third of the left side of antenna artificially lacking. Abbreviations: Ab2, second abdominal segment; An, antenna; Ce, cercus; CE, compound eye; Co, collar; ET, egg tooth; F, fat body; H, head; Hg, hindgut; Mg, midgut; MxP, maxillary palp; SDO, secondary dorsal organ; Th1–3, first, second, and third thoracic segments. Scale bars: 100 µm (Figs 3–6); 500 µm (Fig. 7).