Euboeus (Pelorinus) altimontanus Eshraghi Mofrad & Nabozhenko 2026, sp. nov.

Euboeus (Pelorinus) altimontanus Eshraghi Mofrad & Nabozhenko, sp. nov. (Figs 1, 2) Type material. Holotype, ♂ (HMIM): Qazvin Prov., Alamut, Pich-e Bon Vill., Sehezar-Alamut rd. (border Qazvin and Mazandaran), 3.vii.2026, 3000–3200 m, 36°25 ' 55.1 " N, 50°46 ' 35.8 " E, leg. F. Eshraghi Mofrad; Paratypes, 1♂, 7♀♀ (HMIM): same data as holotype. Description. Male. Body slender, elongate, black, shiny (Fig. 1A). Measurements: Y = 1.37; PHw = 1.45; PwPl = 1.18; ElEw = 1.65; EHw = 1.95; EPw = 1.34; EPl = 2.62. Body length 11.5 mm, width 4.3 mm. Head (Figs 1A–B, D–E). Anterior margin of epistome straight (Fig. 1D). Head widest at eye level. Eyes small dorsally, slightly convex, circumocular impression narrow. Lateral margins of genae angularly rounded. Temples narrowest near eyes and then expand behind eyes. Apical maxillary palpomere uniformly triangular, not very securiform expanded. Puncturation of head fine and sparse (interpuncture distance 2–3 times as long as puncture diameter), punctures denser and coarser on genae and epistome laterally (puncture diameter from subequal to 1.5 times as long as interpuncture distance). Head ventrally coarsely and densely punctured around mouthpart and then punctures merged into coarse transverse wrinkles in gular area. Antennae comparatively short in comparison to other Iranian species of the genus, with two apical antennomeres extending beyond base of pronotum, reaching quarter of elytral length when directed backwards. Prothorax (Figs 1D–F). Pronotum slightly transverse, widest at middle (Fig. 1D). Lateral margins of pronotum slightly rounded at middle, straightly narrowed in apical third and widely slightly emarginated in basal quarter; anterior margin slightly trisinuate; base slightly rounded, with emargination at middle. Antero-lateral angles slightly projected, obtuse, shortly rounded at apex; postero-lateral angles right, narrowly rounded at apex. Lateral margins incompletely and indistintly shortly beaded near anterior and posterior angles; anterior margin only with very short bead marginally; base entirely beaded. Disc of pronotum convex, slightly flattened along lateral margin. Puncturation of disc fine and sparse (puncture diameter 2–4 times as short as interpuncture distance), coarser and denser basally and laterally; punctures round (Fig.1D). Prosternum with sparse and coarse simple puncturation, punctures sometime merged in middle (Fig. 1B). Outer margin of prothoracic hypomera narrowly flattened near base and anteriorly. Prohypomera with smooth longitudinal wrinkles and distinguished sparse puncturation against their background (Fig.1F). Prosternal process shiny and almost smooth, with sparse punctures along lateral margins, slightly convex at apex, not beaded (Fig. 1B). Pterothorax (Figs 1A–B). Scutellar shield triangle, sparsely punctured along sides. Elytra elongate, widest at middle; punctures in striae fine, round, widely spaced; punctures in interstriae fine and sparse, much smaller than strial ones (Fig. 1A). Mesoventrite strongly wrinkled, pubescent, mesocoxal process sparsely and coarsely punctured. Mesepisterna moderately coarsely and densely punctured by large foveae; puncturation of mesepimera and metepisterna finer; metaventrite coarsely and moderately sparsely punctured, covered with short setae, punctures much sparser laterally (Fig. 1B). Legs (Figs 1A–B). Trochanters with short moderately dense dark and yellowish setae, protrochanters with two long setae, meso- and metatrochanters with one long seta. Basal third of femora with the same dense on flex side; another surface of femora with sparse puncturation and shorter setae. Pro- and mesotibiae straight, Metatibiae moderately curved. Pro- and mesotarsomeres 1–4 strongly dilated, trasverse, pro- and mesotarsomere 1 wider than apex of protibia. Abdomen (Fig. 1B). Abdominal ventrites with moderately dense, fine puncturation and simple, short setae; ventrite 5 with denser punctures and longer setae at apex. Genitalia (Figs 1G–J). Apical part of basal piece of aedeagus with longitudinal rugosity dorsally. Parameres 2.6 times as long as wide, with narrow median longitudinal impression dorsally, shortly rounded at apex and with slightly rounded lateral margins, gradually narrowed to apex. Female (Fig. 1C). Body more robust. Eyes strongly convex and prominent. Antennae shorter than in male, not reaching base of pronotum. Elytra dull, strial punctures slightly larger, denser and elongate. Pronotum emarginated near hind angles. Metatibiae curved as in male. Measurements: Y = 1.37–1.38; PHw = 1.60–1.62; PwPl = 1.30– 1.33; ElEw = 1.57–1.64; EHw = 2.04–2.17; EPw = 1.27–1.34; EPl = 2.75–2.80. Body length 13–15.8 mm, width 5.1–6.3 mm. Etymology. The specific epithet altimontanus is derived from the Latin altus (high)and montanus (mountainous), referring to the high-elevation montane habitat of the new species (Fig. 2). Differential diagnosis. The new species is most similar to Euboeus arzanovi Nabozhenko, 2022 in the shape of body, the pronotum (narrow, with not beaded an slightly rounded lateral margins), the shape of parameres with longitudinal impression dorsally, but differs in the following characters: eyes are dorsally small and slightly convex (larger and more convex in E. arzanovi; see Fig. 8E in Nabozhenko (2022)); apical maxillary palpomere is narrower (strongly dilated in E. arzanovi; see Fig. 8E in Nabozhenko (2022)); antennae are comparatively short, with two apical antennomeres extending beyond base of the pronotum and reaching basal quarter of elytral length (E. arzanovi: four apical antennomeres extending beyond base of the pronotum and reaching third of elytral length); lateral sides of the pronotum are narrowly distinctly flattened (not flattened in E. arzanovi); apical part of the basal piece of the aedeagus is longitudinally rugose (smooth in E. arzanovi); parameres are widely rounded at apex (narrowly rounded apex in E. arzanovi); parameres are narrower, 2.6 times as long as wide in E. altimontanus sp. nov. and 2.3 times as long as wide in E. arzanovi. Bionomics. Adults of this species were found under bushes and herbaceous plants during the day (Fig. 2A). Beetles were collected under a dry Astragalus bush that had just emerged from the melting snow (Fig. 2B).