Coleoxestia pucacurensis Santos-Silva & Hernandez, 2025, sp. nov.

Coleoxestia pucacurensis sp. nov. (Figs 1–7, 12–14) Description. Male holotype (Figs 1–6, 12–14). Integument mostly black; ventral mouthparts dark brown, except yellowish-brown apex of palpomeres; anterior margin of anteclypeus yellowish-brown; antennae gradually dark brown from antennomere V. Elytra gradually dark brown toward apex. Femora dark reddish brown on wide central area. Tibiae gradually dark brown toward apex (almost dark reddish brown depending on light intensity). Tarsi dark brown. Abdominal ventrites dark brown, slightly and gradually lighter toward ventrite 5, except orangish-brown apex of ventrites 1–4. Head. Frons coarsely, shallowly, somewhat rugose and finely punctate laterally, longitudinally sulcate centrally from frontal plate, sulcus smooth, gradually widened toward vertex; frontal plate mostly smooth, transverse, not welldelimited posteriorly; area between frontal plate and eyes distinctly sulcate; sulcus on each side of remaining surface of frons (frontolateral depression), which usually follows toward base of antennal tubercles, absent or nearly so (Figs 6–7); area close to eyes on sides of frontal plate with moderately sparse, minute yellowish-brown setae; remaining surface glabrous. Median groove slightly distinctly only between frontal plate and area between antennal tubercles. Area between antennal tubercles sulcate, this sulcus continues frontal sulcus, and gradually widened toward upper eye lobes, sparsely, finely punctate, glabrous. Area between upper eye lobes sparsely, shallowly, finely punctate; depressed close to eyes making central area somewhat broadly carinate; with a few moderately long, erect yellowish-brown setae close to eyes, and a few minute setae of same color on remaining surface. Dorsal area close to prothorax abundantly, coarsely punctate, punctures mainly slightly transverse, part of them anastomosed, and some of them with minute yellowish seta inside. Area behind upper eye lobes moderately abundantly, coarsely punctate; with a few moderately long, erect yellowish-brown setae close to eye, glabrous on remaining surface. Area behind lower eye lobes tumid close to eye, almost smooth close to upper eye lobes, sparsely, coarsely punctate toward ventral surface; transversely rugose-punctate on wide area close to prothorax, more distinctly toward ventral surface; with long, erect yellowish-brown setae close to inferior region of eye, glabrous on remaining surface. Genae moderately abundantly, coarsely punctate toward ventral surface, moderately abundantly, finely punctate toward clypeus close to eye, mostly smooth on remaining surface; with moderately sparse, minute yellowish setae frontally close to eye and ventrally, glabrous on remaining frontal surface; with a few long, erect yellowish-brown ventral setae interspersed ventrally. Antennal tubercles well-separated basally; moderately sparsely, finely punctate, glabrous; apex rounded, thick. Wide central area of postclypeus abundantly, coarsely rugose-punctate, transversely sulcate close to anteclypeus; glabrous, with one long, erect yellowish-brown seta on each side. Sides of postclypeus smooth, glabrous. Labrum with a few coarse punctures; with tufts of moderately short, erect yellowish-brown setae on posterior 2/3, tufts longer laterally, and fringe of yellowish-brown setae on sides of anterior margin. Gulamentum smooth, glabrous on posterior half; anterior half transversely rugose, sparsely, finely punctate, except coarsely, anastomosed punctures on sides of its posterior region; with sparse, bristly yellowish-brown pubescence and a few long, erect setae of same color interspersed. Distance between upper eye lobes 0.23 times distance between outer margins of eyes; in ventral view, distance between lower eye lobes 0.50 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.36 times distance between outer margins of eyes. Antennae 1.25 times elytral length, almost reaching posterior fifth of elytra. Scape abundantly, coarsely rugose punctate dorsally and laterally on basal half and entire ventral surface, punctures gradually finer sparser on posterior half of dorsal and lateral surface, except smooth apex of dorsal surface; most punctures with minute whitish seta inside, and a few punctures with long, erect yellowish-brown seta inside on apical half of dorsal and outer surface and apical 2/3 of ventral surface. Pedicel sparsely, very finely punctate; some punctures with minute whitish seta inside and some with long, erect yellowish-brown seta. Antennomere III sparsely, finely punctate dorsally and laterally, except smooth base and apex, and moderately abundantly and coarsely punctate ventrally; with minute whitish setae, slightly more abundant on posterior half, except glabrous smooth areas; with long, erect yellowish-brown setae ventrally and entire surface close to apical smooth area; outer apex acutely-angulose; sensorial area restricted to apical quarter of outer surface, divided by longitudinal carina, with abundant yellowish-brown pubescence not obscuring integument. Antennomere IV moderately abundantly, finely punctate, except smooth base and apex of dorsal and inner surfaces, setae as on III; outer apex acutely-angulose, spine slightly longer than on III and slightly directed backward; sensorial area present on almost entire outer surface, but interrupted before middle, divided by longitudinal carina on its posterior region, with abundant yellowish-brown pubescence not obscuring integument. Antennomeres V–X with outer apex acutely projected backward, less so on IX–X; with abundant yellowish-brown pubescence throughout, except glabrous central apex on V–VI; apex with sparse, moderately short yellowish-brown setae; sensorial area present from base to apex of outer surface, divided by longitudinal carina. Antennomere XI with pubescence as on X; distinctly, abruptly narrowed on apical third of inner surface; widest width 0.2 times length of antennomere. Antennomere XI narrowed on distal third; entirely microsculptured; with abundant white pubescence not obscuring integument. Antennal formula (ratio) based on antennomere III (not including the apical projection of some antennomeres): scape = 0.72; pedicel = 0.14; IV = 0.53; V = 0.58; VI = 0.54; VII = 0.53; VIII = 0.48; IX = 0.48; X = 0.44; XI = 0.71. Thorax. Prothorax slightly wider than long centrally, almost the same length when measured from posterolateral angles; anterior margin convex; posterior margin straight on wide central area, rounded projected backward laterally; anterior and posterior constrictions and anterior transverse sulcus well marked; sides slightly rounded, sinuous from anterior to posterior constriction. Pronotum depressed, smooth close to anterior margin, almost smooth on anterior fifth after anterior sulcus, transversely striate on wide central area from smooth anterior area to posterior constriction, slightly transversely sulcate laterally between posterior constriction and posterior margin, smooth centrally between posterior constriction and posterior margin, and rugose laterally between constrictions; striated area very sparsely and finely punctate; with a few long, erect yellowish-brown setae laterocentrally. Sides of prothorax rugose on wide central area, less so toward prosternum, with coarse, confluent punctures centrally close to pronotum, smooth between anterior margin and anterior sulcus, with oblique sulcus on posterior quarter, continuing that on sides of pronotum, slightly transversely striate between posterior sulcus and posterior margin close to pronotum, mostly smooth on remaining posterior margin; with a few long, erect yellowish-brown setae centrally and anteriorly near prosternum, and sparse whitish pubescence posteriorly near procoxal cavity. Posterior half of prosternum slightly rugose laterally, with a few coarse punctures on remaining surface; with distinct, sinuous sulcus close to procoxal cavities; with long, erect yellowish-brown seta within coarse punctures; with moderately sparse white pubescence close to procoxal cavities. Anterior half of prosternum with arched sulcus close to posterior half, slightly rugose laterally between arched sulcus and anterior sulcus, mostly smooth on remaining surface; with a few minute white setae. Prosternal process with white pubescent band laterally, glabrous on remaining surface, and a few moderately long, erect yellowish-brown setae anterocentrally; narrowest area 0.27 times procoxal width. Mesoventrite with moderately abundant whitish pubescence, except glabrous area close to mesoventral process and on each side before procoxal cavities. Mesanepisterna and mesepimera with abundant yellowish-brown pubescence, distinctly denser on mesepimera. Mesoventral process not tuberculate, with concave sides and apex distinctly notched; with abundant, both whitish and light yellowish-brown pubescence not obscuring integument laterally, and sparse white pubescence centrally; narrowest area 0.39 times mesocoxal width. Metanepisterna with dense light yellowish-brown pubescence. Metaventrite longitudinally sulcate close to metanepisterna on anterior 3/4; very sparsely, minutely punctate; metakatepisternal suture well marked; with abundant light yellowish-brown pubescence anteriorly close to lateral sulcus, dense light yellowish-brown pubescence posteriorly close to metaventrite and metacoxal cavities, abundant, both light yellowish-brown and whitish pubescence not obscuring integument close to sides of mesocoxal cavities, and very sparse, both minute and short whitish setae on remaining surface; with a few short, erect yellowish-brown setae on metaventral process. Scutellum very sparsely, minutely punctate; with very sparse, minute white setae, more abundant close to lateral margins. Elytra. Somewhat rugose on anterior quarter; remaining surface with slightly distinct, irregular reticular lines; moderately abundantly, finely punctate on anterior h