Genus Lyconotus Green, 1949 stat. rev. Figs 4A, C, G, K, V, X, 5D, H, L, O, Q, 6C, F, J, N, P, 7K, N, 9B–C Lyconotus Green, 1949: 67. Type species Lycus lateralis Melsheimer, 1846. Diagnosis Similar in appearance to Lycomesus (Fig. 9B–C), but differs in the oval shape of the labrum (Fig. 4K); the acute apex of the elytra; the membranous wing with the radiomedial loop slightly acute (Fig. 5O); in males the last sternite and phallus curve at 90°, the thorns of the phallus are modified to receive parameres (Fig. 7K). In the female genitalia, the coxites and valvifers are independent structures, and the outer margin of the coxites cleft is present (Fig. 7N). Material examined Refer to Supp. file 1. Redescription Body slender. Head concealed by pronotum, rostrum long and very slender (Fig. 4A). Interantennal distance around 0.1–1.12 mm (Fig. 4C). Antennomere III almost as long as antennomere IV (Fig. 4G). Labrum oval (Fig. 4K). Mandibles longer than labrum. Pronotum widest at base, with anterior border rounded and anterior margins not prominent, between 0.53–0.81 mm in width. Elytra without sexual dimorphism, with three distinct costae on each elytron (Fig. 9B–C). Radiomedial loop angle slightly acute (Fig. 5O). Trochanters with acute internal angle (Figs 5Q, 6C), metatibial spurs equal and short (Fig. 6F). Last sternite abruptly curved (Fig. 6P). Male genitalia with long and triangular parameres, phallus slightly widened at base and curved at apex (curvature of about 90°), with transparent keel on ventral part, phallus with thorns modified to receive parameres (Fig. 7K). Female genitalia with slender stylus, coxites, and valvifers as independent structures, with slender coxites and S shape, valvifers not fused at base (Fig. 7N). Distribution Lyconotus is distributed in the Neartic and Neotropical regions. It has been reported in northeastern, southeastern and southern United States as well as in Mexico, Panama, and Colombia (Dugés 1878, 1896; Green 1949; Pérez-Hernández et al. 2019; GBIF 2023a).

Published as part of González-Ramírez, Mireya, Zaragoza-Caballero, Santiago, Morrone, Juan J. & Ochoterena-Booth, Helga, 2025, A phylogenetic analysis based on morphology reveals the placement of Lycomesus Zaragoza-Caballero & González-Ramírez, 2019 and Lyconotus Green, 1949 within Lycini (Coleoptera: Lycidae), with the description of a new genus from North America, pp. 202-242 in European Journal of Taxonomy 1022 on pages 223-224, DOI: 10.5852/ejt.2025.1022.3089, http://zenodo.org/record/17455408