Abanycha contamanina, Santos-Silva & Hernandez, 2025

Abanycha contamanina sp. nov.

( Figs 32–36 View FIGURES 32–36 )

Description. Female holotype. Head capsule, postclypeus, base of anteclypeus, and ventral mouthparts orange; remaining surface of anteclypeus light orange; posterior third of labrum dark orangish brown, sides of anterior 2/3 dark reddish brown, and remaining surface dark brown; mandibles orange on basal 2/3, black on apical third; scape, pedicel, and antennomere III blackish; antennomere IV reddish brown basally, pale yellow on remaining surface, except orangish apex; antennomere V pale yellow except brownish apical fifth; antennomere VI dark reddish brown basally, dark brown on remaining surface; antennomeres VII–XI dark brown. Pronotum and sides of prothorax orange; prosternum reddish brown; prosternal process mostly yellowish orange. Mesoventrite reddish brown except orange lateral apices; mesoventral process dark orangish-brown anterocentrally, yellowish-orange on remaining surface. Mesanepisterna and mesepimera orangish brown. Metanepisterna and metaventrite dark brown, except light orange sides of metaventral process. Scutellum orange. Elytra blackish except large, wide, longitudinal orange band laterally, this band from base to slightly after basal third dorsally and only on basal quarter between humeral carina and epipleural margin, and brown between orange area and suture. Coxae yellowish, slightly more brownish close to prosternal and mesoventral processes, and brown on outer sides of metacoxae. Trochanters and basal quarter of femora pale yellow; remaining surface of pro- and metafemora orange, slightly lighter ventrally; remaining surface of metafemora dark brown. Pro- and mesotibiae light orange on basal third, dark brown on remaining surface; metatibiae dark orangish-brown on basal fifth, dark-brown on remaining surface. Tarsi dark brown, except mostly dark reddish-brown tarsal claws. Ventral surface of abdomen dark brown, except orangish-brown apex of ventrite 5.

Head. Frons sparsely, moderately finely punctate; with abundant yellow pubescence not obscuring integument, except glabrous median groove. Vertex with sculpturing as on frons; with abundant yellow pubescence not obscuring integument, except glabrous median groove, pubescence appearing to be orange toward prothorax depending on light source; with a few long, erect yellowish-white setae interspersed. Area between antennae and eyes with dense yellow pubescence. Area behind upper eye lobes sparsely, moderately finely punctate; with abundant yellow pubescence not obscuring integument. Area behind lower eye lobes with a few moderately coarse punctures; with abundant yellow pubescence superiorly and inferiorly, sparser centrally. Genae 1.3 times length of lower eye lobe; sparsely, moderately finely punctate; with abundant yellow pubescence partially obscuring integument, except glabrous apex. Wide central area of postclypeus abundantly, minutely punctate; with abundant yellow pubescence not obscuring integument and one long, erect pale-yellow seta on each side. Sides of postclypeus glabrous. Labrum densely, finely punctate close to anteclypeus, subsmooth on remaining surface; punctate area with sparse yellowish-white pubescence on wide central region, abundant yellow pubescence not obscuring integument laterally, and long, erect, thick yellow setae laterally; remaining surface glabrous. Outer side of mandibles triangularly depressed on basal half, with abundant yellow pubescence not obscuring integument and a few long, erect, thick yellow setae interspersed; remaining surface smooth, glabrous. Distance between upper eye lobes 0.31 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.52 times distance between outer margins of eyes. Antennae 1.45 times elytral length, reaching elytral apex at apical quarter of antennomere X. Scape with abundant, both brown and yellowish pubescence not obscuring integument, pubescence appearing to be dark depending on light intensity and source, and a few long, erect yellowish setae interspersed ventrally. Pedicel with moderately abundant yellowish pubescence not obscuring integument, pubescence appearing to be darker depending on light intensity and source, and a few long, erect dark setae interspersed ventrally. Antennomere III abundant, both yellowish and brown pubescence not obscuring integument, pubescence appearing to be darker depending on light intensity and source, except dense yellowish-white pubescence on basal region of ventral surface; ventral surface with abundant, moderately short, bristly dark setae, and long, erect dark setae interspersed, both gradually more abundant toward apex. Antennomeres IV–V with abundant white pubescence not obscuring integument; with long, erect whitish setae interspersed ventrally, except a few long, erect dark setae near apex of V. Antennomeres VI–XI with abundant dark pubescence partially obscuring integument, with short, decumbent whitish setae interspersed, and sparse, long, erect dark setae interspersed ventrally. Antennal formula (ratio) based on antennomere III (not including the apical projection of some antennomeres): scape = 0.55; pedicel = 0.12; IV = 0.63; V = 0.46; VI = 0.38; VII = 0.34; VIII = 0.27; IX = 0.24; X = 0.22; XI = 0.23.

Thorax. Prothorax wider than long; sides slightly rounded from anterolateral angles to posterior fifth, then slightly sinuous toward posterolateral angles. Pronotum sparsely, coarsely punctate, except transverse, irregular rows of coarse punctures on posterior fifth; with abundant yellow pubescence not obscuring integument, pubescence appearing to be shorter, sparser, and orange depending on light source; with a few long, erect yellowish-white setae interspersed. Sides of prothorax with sparse, moderately coarse punctures; with abundant yellow pubescence not obscuring integument, and a few long, erect yellowish-white setae interspersed. Prosternum sparsely, moderately coarsely punctate; with dense yellow pubescence close to sides of prothorax, and sparse yellowish pubescence on remaining surface. Prosternal process with abundant yellowish pubescence not obscuring integument; narrowest area 0.27 times procoxal width. Mesoventrite with sparse yellowish pubescence, except more abundant yellow pubescence on sides. Mesanepisterna and mesepimera with abundant yellow pubescence not obscuring integument, pubescence appearing to be sparser and darker on most of mesanepisterna depending on light source; mesanepisterna moderately sparsely, coarsely punctate. Metanepisterna with abundant, mostly yellow pubescence not obscuring integument, pubescence appearing to be more yellowish white depending on light source. Metaventrite with abundant yellow pubescence not obscuring integument laterally, pubescence appearing to be more yellowish white depending on light source, and abundant yellowish-white pubescence not obscuring integument on remaining surface, except glabrous metathoracic discrimen. Scutellum with dense yellow pubescence. Elytra. Sparsely, moderately coarse punctate, punctures finer toward apex on posterior half; orange area with abundant yellow pubescence partially obscuring integument on its inner margin, and abundant orange pubescence partially obscuring integument on remaining surface; with large, subrounded orange pubescent macula dorsally on posterior third; brown area with brown pubescence distinctly not obscuring integument and remaining surface with abundant dark-brown pubescence partially obscuring integument except longitudinal, narrow white pubescent band close to suture, absent on apical quarter, longitudinal, narrow white pubescent band from near base to about middle of dorsal surface, most of it located between orange integumental area and suture, and two longitudinal, narrow white pubescent bands dorsally, from apex of orange integumental area to about posterior third; humeral carina well marked from base to near apex; dorsal surface with two longitudinal carinae from near base to about posterior quarter; area between humeral carina and epipleural margin with longitudinal carina not close to the former and not reaching apex ( Fig. 35 View FIGURES 32–36 ); apex slightly obliquely truncate, with outer and sutural angles slightly projected. Legs. Pro- and mesofemora with abundant whitish pubescence not obscuring integument, pubescence appearing to be more yellowish depending on light intensity and source; with a few long, erect yellowish-white setae interspersed. Metafemora with abundant whitish pubescence not obscuring integument on basal third, abundant yellowish pubescence not obscuring integument on remaining ventral surface, and moderately abundant, both brownish and yellowish-white pubescence not obscuring integument on remaining dorsal and lateral surfaces. Tibiae with sparse whitish pubescence basally, pubescence gradually yellower toward apex, except denser, bristly yellowish-brown pubescence on ventral surface of apical 2/3; with long, erect yellowish setae interspersed on dorsal and inner surfaces. Dorsal surface of tarsomeres I–III with abundant brown pubescence not obscuring integument, and short, decumbent, both yellowish-brown and whitish setae interspersed, and long, subdecumbent dark-brown setae also interspersed; dorsal surface of tarsomeres IV–V with moderately sparse yellowish-brown pubescence, and a few long, erect yellowish-brown setae interspersed on apical area of V.

Abdomen. Ventrites with abundant yellowish-white pubescence not obscuring integument, pubescence appearing to be darker and sparser on some areas depending on light source; with sparse, long, erect yellowish setae interspersed. Apex of ventrite 5 concave, especially centrally.

Dimensions in mm. Total length, 11.65; length of prothorax, 2.10; anterior width of prothorax, 2.45; posterior width of prothorax, 2.50; maximum width of prothorax, 2.70; humeral width, 3.50; elytral length, 8.65.

Type material. Female holotype from PERU, Loreto: Contamana , Rio Ucayali, 7.VIII.2019, J.J. Ramírez leg. ( MZSP, formerly JJRH) .

Etymology. The species-group name is the gentilic of those born in Contamana, the type locality of the new species.

Remarks. Abanycha contamanina sp. nov. differs from all other species of the genus by the orange pubescent band on the posterior third of elytra. From some species of the genus, it also differs by the much greater distance between the upper eye lobes; from others, by the considerably wider elytral apex or by the color of the antennae.

According to the alternative of couplet “4” of the “Group F” sensu Martins & Galileo (2014) (translated): “Basal flagellomeres with dense setae [erect] or apical flagellomeres with fringe of long and white setae… 5; “Basal flagellomeres with sparse setae [erect]… 8.” Following the first option, this key leads A. contamanina to Themistonoe Thomson, 1864 , a genus with a single and noticeably different species (see photograph on Bezark (2025) and in Martins & Galileo (2014)). The alternative of couplet “4” is problematic since one of the genera included in the key following the alternative of couplet “5” has some species without dense erect setae on the antennomere III or dense white setae on distal antennomeres: Isomerida Bates, 1866 (see photographs on Bezark 2025). Following toward the alternative of couplet “8,” the key leads the new species to the alternative of couplet “15” (translated): “Sides of prothorax with tubercle… 16;” “Sides of prothorax without tubercle…. 17.” Again, the two options of the alternative of couplets are very problematic. This is because there are species in Piruanycha Martins & Galileo, 1997 (included in the alternative of couplet “16”), without lateral tubercles on the prothorax (see photographs on Bezark (2025) and in Martins & Galileo (2014)), and there are species of Abanycha (included in the alternative of couplet “23”), with the sides of the prothorax not differing from those on some species of Piruanycha . Following from the alternative of couplet “17,” the key leads the new species to the alternative of couplet “19” (translated): “Elytral apex unarmed, rounded… 20;” “Elytral apex with two spines or projections… 21.” However, there is at least one species of in Hilaroleopsis Lane, 1970 (included in the alternative of couplet “20”), H. minor Martins & Galileo, 1997 , with the elytral apex as in the genera included from the alternative of couplet “21.” Following the alternative of couplet “21,” the key leads the new species to Abanycha . Abanycha differ from Themistonoe by elytra not laterally expanded from middle to apical sixth (expanded in Themistonoe ); from the type species of Isomerida (it is not possible to provide a reliable difference with the other species of the genus because they have many aberrant features for the genus) by the carina between humeral carina and epipleural margin not close to the former (close in the type species of Isomerida ); from Piruanycha by the absence of dense light pubescence on sides of the abdominal ventrites (present in Piruanycha ); and from the type species of Hilaroleopsis (it is not possible to provide a reliable difference with the other species of the genus because they have many aberrant features for the genus) by the elytral apex widely and obliquely truncate (rounded in the type species of Hilaroleopsis ). For now, we believe that, at least provisionally, the new species is best placed in Abanycha , especially by the posterodorsal surface of the head distinctly tumid.