Lychnophaes imbirucu Jorge, Santos & Zarbin 2026, sp. nov.

Le résumé fourni par la source

5.3. 4.Lychnophaes imbirucuJorge, Santos & Zarbin sp. nov. Figures 7, 8, 9, 10 Diagnoses. Eyes emarginate. Scutellum tiny. Elytra covering the pygidium. The last abdominal ventrite serrated like the inner surface of the elytra (closing mechanism). Tibiae flattened. Fore and middle legs with simple claws and the hind leg with appendiculate claws. Description. MALE: Body. Oval, strongly convex dorsally and flat ventrally (Figs 6, 7, 8). — Integument color. Head and pronotum coppery with yellowish green reflections and elytra cyan with green reflections; ventral surface, including abdomen, dark blue; legs cyan except anterior femur with green reflections (Fig. 6). — Head. Frons with fine punctures (Figs 6 C, 7 C). Head anteriorly flat (Figs 6 D, 7 B – D). Eyes emarginated at the level of antenna insertion (Figs 6 B, 7 C). Antennae short, with eleven articles, inserted between the base, eye, and lateral edges of the clypeus (Fig. 7 C). Labrum short, transversal, narrower than the clypeus, bearing small thick setae (Fig. 7 C). — Prothorax. Pronotum convex, narrower than base of elytra, sinuous posterioly, with fine punctures like those on frons anteriorly and coarser posteriorly (Figs 6 A, 7 A); longer than wide, sinuous medially and with a truncated apex. — Mesothorax and metathorax. mesothorax small, scutellum with extremely acute apex (Figs 6 A, 7 A). Elytra with ten rows of punctures extending from the base to the apex, where they merge. In dorsal view, only eight rows are visible. Each puncture with a short seta. Epipleura narrow, with a notch for the posterior femur (Figs 6 B, 6 D, 7 B). Fore legs with femur without the inner margin projecting into the median portion, tibia without a small tooth-like in the internal and external portion apex (Figs 6 B, 7 B, 7 D). Four visible tarsomeres (Figs 7 D, 7 E); the last tarsomere protrudes less than one-third of the anterior tarsal lobe, with simple claws except for appendiculate claws in posterior legs (Fig. 7 E). Middle and posterior legs similar to anterior leg (Fig. 7 D), excepted for the transverse coxa. — Abdomen with five ventrites (Figs 6 B, 7 D), the last serrated at apex (elytral lock mechanism) (Fig. 7 F). Ventrite I with arc-shaped lateral depressions to receive metafemora; ventrites II to V medially punctate and with short setae. — Aedeagus (Fig. 9 A – D): Dorsal valve articulated, rounded at apex. Ventral margin thickened laterally, with a deep lateral emargination. — FEMALE: Similar coloration to male except for lacking metallic green spot on the profemur. In the type series, there is a single entirely coppery female with reddish reflections instead of having blue elytra as in the others (Fig. 6 E). Sternite VIII membranous, straight, without an apodeme. Genitalia (Fig. 9 E) with a circular chitinpolster, resembling Oomorphoides tonkinensis as mentioned by Schöller (2008). Styli present and articulate. Spermatheca composed of three chambers connected. Duct non-sclerotized. Egg case. Coverage without specific format. Larval case. Oval shape made up of earthy-looking material. Host Plants. Pseudobombax grandiflorum (Cav.) A. Robyns. Parasitoids. Unknown. Geographical distribution. Brazil: Paraná, Curitiba (Fig. 11). Type series. The type series of the new species of Lychnophaes comprises: the holotype and 20 paratypes, with the holotype and 18 paratypes deposited in the DZUP, and two paratypes (one ♀ and one ♂) deposited in the INPA. Seven paratypes (♀ and ♂) that were used in the molecular extraction and in the scanning electron microscope (SEM) images were also deposited in the Padre Jesus Santiago Moure Entomological Collection, totalizing 28 specimens. — DZUP. Holotype ♂ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 10. XII. 2024, | Col. Isaac R. Jorge, 2024; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; HOLOTYPE | Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025; DZUP | 325205. — Two paratypes ♂ and four ♀ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 10. XII. 2024, | Col. Isaac R. Jorge, 2024; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; PARATYPE | Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025; DZUP | 325206; 325208; 325209; 325210; 325711; 325712. One paratypes ♂ and seven ♀ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 01. XI. 2023, | Col. Isaac R. Jorge, Aluska T. Santos; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; PARATYPE | Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025; DZUP | 325255; 325253; 325254; 325256; 325257; 325258; 325259; 325260. One paratypes ♂ and three ♀ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 01. XI. 2023, | Col. A. T. Santos & Isaac R. Jorge, 2023; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; PARATYPE | Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025; DZUP | 325261; 325262; 325263; 325264. One ♀ and one ♂ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 10. XII. 2024, | Col. Isaac R. Jorge, 2024; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025 | Det. I. R. Jorge and A. T. dos Santos, 2024; DZUP | 325194; 325195; 325196; 325197; 325198; 325203; 325204. — INPA. One paratype ♀ and one ♂ labeled: BRASIL: Paraná, Curitiba, Jardim | das Américas, Campus Jardim | Botânico, UFPR, 10. XII. 2024, | Col. Isaac R. Jorge, 2024; Consumindo Pseudobombax grandiflorum | (Cav.) | A. Robyns; PARATYPE | Lychnophaes imbirucu | Jorge, Santos & Zarbin, 2025; INPA -COL 002863; INPA -COL 002864. Etymology. The specific name “ imbirucu ” is a name in apposition, and it was chosen based on the host plants consumed by the species. The common name “ imbirucu ” originates from Tupi-Guarani, “ mbirusú ” language, and it’s used to name the tree belonging to the Bombacaceae, P. grandiflorum (Cav.) A. Robyns. Remarks. Spermatheca composed of three chambers, whereas Ly. principalis Lacordaire, 1848, possesses only two (personal observation by Isaac R. Jorge). Presence of articulate styli. Sternite VIII significantly more membranous compared to L. cambuci. The genus Lychnophaes is distinguished from Lamprosoma only by its simple rather than appendicular claws. Since it has appendiculate claws only on the hind legs, Ly. imbirucu represents an exception to the genus. Comparative morphology studies should be performed to better understand this character.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.