Lycorectus González-Ramírez & Zaragoza-Caballero, 2025

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, European Journal of Taxonomy 1022, pp. 202-242 : 226-227

Genus Lycorectus González-Ramírez & Zaragoza-Caballero gen. nov.

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Figs 10–11

Type species

Lycostomus sordidus Gorham, 1880 ( Figs 10–11), by present designation.

Diagnosis

Lycorectus gen. nov. is closely related to Rhyncheros . In both genera, the prosternum is strongly carinated, the mesosternum is slightly prominent, the internal angles of the metacoxae are blunt, and the metatibial spurs are equal and long. The main differences between Rhyncheros and Lycorectus are in the shape of the posterior border of the seventh sternite in males, which may be either concave or emarginate in Rhyncheros , but is slightly convex in Lycorectus . In addition, the phallus of Rhyncheros may or may not have thorns, whereas the phallus of Lycorectus lacks thorns ( Fig. 10C–E).

Etymology

The name Lycorectus is derived from the Greek term ‘ Lykos ’ = ‘wolf’ and Latin term ‘ rectus ’ = ‘straight’. The latter pertains to the straight shape of phallus of the aedeagus in comparison to the same structure in Lycomesus and Lyconotus .

Description

Body slender. Head mostly concealed by pronotum ( Figs 10A, 11A); rostrum long ( Figs 10B, 11B); mandibles as long as labrum, straight and slightly curved at apex; antennae of 11 antennomeres; last maxillary and labial palpomere long, distally flattened, and more or less dilated. Pronotum with round anterior margin, wavy posterior margin, straight sides, convex disc. Elytra with four costae that delimit irregular elytral cells. Prosternum strongly carinated; elongated mesothoracic spiracles of tubular shape. Pro- and mesocoxae short and separated; mesosternum slightly protuberant; trochanters with blunt internal angle; metatibial spurs long and equal. Abdominal sternites with slightly pronounced posterior angles; posterior margin of the male seventh sternite slightly convex ( Fig. 6L). Aedeagus with short, triangular parameres (in lateral view); straight phallus without thorns ( Fig. 11C–E).

Distribution

Lycorectus gen. nov. is distributed in the Neotropical region, and has been reported in Mexico, Guatemala, Nicaragua, and Costa Rica ( Gorham 1880, 1884; GBIF 2023b).