Figures 1-4 from: Liu X, Hayashi F, Yang D (2015) Taxonomic notes of the Neotropical alderfly genus Ilyobius Enderlein, 1910 (Megaloptera, Sialidae), with description of a new species. Deutsche Entomologische Zeitschrift 62(1): 55-63. https://doi.org/10.3897/dez.62.4481

Figures 1-4 - Habitus images of Ilyobius spp. 1. Ilyobius curvata sp. n., male holotype; 2. Ilyobius curvata sp. n., female paratype; 3. Ilyobius flavicollis (Enderlein), female holotype and its labels; 4. Ilyobius nubila (Navás), female holotype and its labels. Arrow indicates the base of hindwing MA. Scale bars: 1.0 mm.