Figure 1. A stem-group amphiesmenopteran, lepidopterans, and a trichopteran.

(A), A stem-group amphiesmenopteran, Necrotaulius tener, modified after Grimaldi and Engel [5]. (B-F), Lepidopteran forewings. (B), Archaeolepis mane, from Grimaldi and Engel [5]. (C), Forewing of an Early Jurassic Germany lepidopteran, from Grimaldi and Engel [5]. (D), Undopterix sukatshevae, modified after Skalski [10]; the red arrowhead showing Rs₃₊₄ furcation beyond the M₁₊₂ furcation. (E), Netoxena nana, modified after Martins-Neto [24]; red line indicates a single-Y configuration. (F), Mesokristensenia sinica, modified after Huang et al. [25]. (G), A trichopteran, Juraphilopotamus lubricus, modified after Gao et al. [43].