Estola nearnsi, Santos-Silva & Monné, 2023

Santos-Silva, Antonio & Monné, Miguel A., 2023, The incredible biodiversity of American Lamiinae (Coleoptera, Cerambycidae) description of four new species, synonymy, and taxonomical notes, Zootaxa 5244 (3), pp. 244-260 : 256-259

Estola nearnsi sp. nov.

( Figs 28–33 )

Description. Holotype female ( Figs 28–32 ). Head capsule dark brown dorsally and laterally, brown, gradually lighter toward prothorax ventrally; ventral mouthparts reddish brown, except yellowish-brown apex of palpomeres; anteclypeus and labrum brown posteriorly, fulvous anteriorly; scape orangish-brown on basal third, brownish centrally, dark brown on apical third; pedicel brown on basal third, dark brown on posterior 2/3; antennomeres III–IV orangish about basal 2/3, dark brown on remaining surface; antennomere V orangish on basal half, dark brown on apical half; antennomere VI orangish on basal 3/4, dark brown on apical quarter; antennomeres VII and IX reddish brown about basal half, dark brown on apical half; antennomere VIII and X reddish brown except dark brown apex; antennomere XI reddish brown, slightly brownish about middle. Prothorax and ventral surface of meso- and metathorax black. Elytra blackish basally, dark brown with irregular blackish areas interspersed on remaining anterior 2/3, slightly lighter on posterior third. Basal quarter of tibiae brown dorsally and laterally, blackish ventrally, remaining surface orangish, except dark ring after middle on protibia, ring lighter dorsally, and dark ring about middle on meso- and metatibiae, ring blackish dorsally. Tarsi mostly reddish brown, with irregular orangish areas. Ventrites 1–4 black, except dark reddish brown apex; ventrite 5 mostly dark brown.

Head. Frons abundantly, coarsely punctate; with dense straw-colored pubescence, pubescence more yellowish-white close to eyes, except dense, large light brown pubescent macula on each side of median groove close to clypeus, and one dense, large light brown pubescent macula on each side close to antennal tubercles; with long, erect yellowish-white setae interspersed. Area between antennal tubercles with two convergent straw-colored pubescent bands centrally, continuing the frontal pubescence, except glabrous median groove, and dense light brown pubescence on sides; remaining surface of vertex with straw-colored pubescence close to eyes and centrally close to prothorax, and dense light yellowish-brown pubescence, with short straw colored setae interspersed on remaining surface; with long, erect, both yellowish-white and brownish setae interspersed. Area behind eyes with abundant fulvous pubescence partially obscuring integument. Genae 0.3 times lower eye lobe length; with abundant yellowish-white pubescence with light brown pubescence interspersed, except glabrous apex, and central area with sparse light brown pubescence and short, decumbent whitish setae interspersed. Wide central area of postclypeus with dense yellowish-white pubescence, pubescence slightly yellower laterally, and long, somewhat abundant yellowish-white setae directed forward interspersed. Sides of postclypeus glabrous. Labrum with dense yellowishwhite pubescence partially obscuring integument on posterior 2/3, with long, erect setae of same color interspersed, glabrous on anterior third, except anterior margin with fringe of yellowish setae. Gulamentum smooth, glabrous, except intermaxillary process slightly depressed, finely punctate, and with straw-colored pubescence not obscuring integument, and a few somewhat long, erect yellowish-brown setae interspersed. Antennal tubercles with dense light brown pubescence and yellowish-white pubescence interspersed, except frontal region mostly with dense yellowish-white pubescence. Distance between upper eye lobes 0.34 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.62 times distance between outer margins of eyes. Antennae 1.55 times elytral length, reaching elytral apex near apex of antennomere VIII. Scape with abundant yellowish-white pubescence partially obscuring integument on basal 2/3, somewhat abundant brownish pubescence on dorsal surface of apical third, with yellowish-white pubescence interspersed on some areas, and abundant whitish pubescence on apical third of sides and ventral surface; with a few long, erect yellowish-white setae near apex of ventral surface. Pedicel with somewhat abundant yellowish-white pubescence on base of dorsal surface, almost entire sides, and entire ventral surface, and somewhat sparse brownish pubescence on remaining surface; with a few long, erect yellowish-white setae ventrally. Antennomeres III–XI with abundant yellowish-white pubescence almost obscuring integument on light area, and somewhat sparse brownish pubescence on dark area; antennomeres III–X with sparse, long, erect yellowish-white setae ventrally, setae gradually shorter and sparser toward X, setae dark on apical region of some antennomeres; antennomeres V–XI with short, erect yellowish-white setae interspersed. Antennal formula based on length of antennomere III: scape = 1.10; pedicel = 0.29; IV = 1.15; V = 1.02; VI = 0.94; VII = 0.85; VIII = 0.81; IX = 0.72; X = 0.64; XI = 0.68.

Thorax. Prothorax wider than long; lateral tubercle acute, moderately large, located slightly after middle; sides divergent from anterolateral angles to lateral tubercles, then convergent toward posterolateral angles. Pronotum abundantly, coarsely punctate; with dense brownish-yellow pubescence with part of central anterior half with light brown pubescence, area close to anterior margin and sides of anterior quarter with light brown pubescence, sides with light brown pubescence close to lateral tubercles of prothorax, and wide central area close to posterior margin with both, yellowish and brownish pubescence; sides with a few long, erect dark setae, and posterior margin with sparse, long yellowish setae directed backward. Sides of prothorax with dense brownish-yellow pubescence, except superior region of anterior third with dense light brown pubescence. Prosternum with abundant brownish-yellow pubescence partially obscuring integument, with whitish setae interspersed. Prosternal process with pubescence as on prosternum; narrowest area 0.12 times procoxal width. Mesoventrite with somewhat abundant yellowish-white pubescence not obscuring integument centrally, and dense brownish-yellow pubescence laterally. Mesanepisternum and mesepimeron with dense brownish-yellow pubescence, except yellower pubescence close to elytra. Mesoventral process with dense yellowish pubescence; narrowest area 0.46 times mesocoxal width. Metanepisternum and sides of metaventrite with dense yellowish-brown pubescence; remaining surface of metaventrite with abundant yellowish-white pubescence not obscuring integument. Scutellum with dense brownish-yellow pubescence. Elytra. Abundantly, coarsely punctate on anterior third, punctures gradually finer, sparer toward apex; with dense brownish-yellow pubescence and abundant brown pubescent areas interspersed, except dense, bristly yellowish-brown pubescence on anterior quarter of suture; with somewhat abundant, long, suberect dark brown setae throughout, and sparse, long, erect yellowish setae on sides and apex. Legs. Femora with dense brownish-yellow pubescence, and a few long, erect setae of same color on dorsal apex. Tibiae with moderately abundant yellowish-white pubescence not obscuring integument, except inner margin of dark area of protibiae with dense, bristly dark-brown setae, dorsal surface of dark ring on meso- and metatibiae with abundant, short, erect black setae, and remaining surface of dark rings with somewhat sparse brownish pubescence; all tibiae with long, erect yellowish-white setae interspersed, setae distinctly denser on dorsal surface of meso- and metatibiae. Dorsal surface of tarsi with abundant whitish pubescence not obscuring integument, except basal 2/3 of tarsomeres I with yellowish pubescence; metatarsomere I about as long as II–III together.

Abdomen. Ventrites with dense brownish-yellow pubescence, and long, erect setae of same color interspersed, erect setae slightly more abundant laterally. Ventrite 5 triangularly depressed centrally on posterior third, and apical margin slightly concave.

Variation. Brownish-yellow pubescence in the holotype differs by yellowish-white pubescence on the paratype.

Dimensions (mm) (Holotype female/ paratype female). Total length, 8.10/7.65; prothoracic length, 1.60/1.55; anterior prothoracic width, 1.75/1.55; posterior prothoracic width, 1.75/1.70; maximum prothoracic width, 2.35/2.15; humeral width, 2.80/2.65; elytral length, 6.00/5.65.

Type material. Holotype female from BOLIVIA, Santa Cruz: Potrerillo del Guendá, Snake Farm , 17º40′S 63º27′W, 370–400 m, 13–16.X.2011, Wappes & Skillman leg. ( FSCA) . Paratype female, same data as holotype, except 15–22.XI.2011, Bettela, Bonaso & Romero leg. ( MZSP, formerly FSCA).

Etymology. We are happy to name this species in honor of Eugenio H. Nearns (National Museum of Natural History, Smithsonian Institution, United States of America) for his friendship and for his great contribution to the knowledge of the Onciderini ( Coleoptera , Cerambycidae , Lamiinae).

Remarks. Estola nearnsi sp. nov. is similar to E. annulipes Breuning, 1940 (see photographs on Bezark 2023 and Galileo & Martins 2006), but differs by the lower eye lobes distinctly longer than genae (according to Breuning (1974), lower eye lobes half as long as genae in E. annulipes ), frons distinctly wider than long (according to Breuning (1974), frons as wide as long), and pronotum without oblique yellowish band basally (present in E. annulipes ). The new species differs from E. fuscomarmorata Breuning, 1940 (see photographs on Bezark 2023 and Lingafelter et al. 2023) by the body stouter (slender in E. fuscomarmorata ), antennomeres III and VI bicolorous (entirely dark in E. fuscomarmorata ), and elytral pubescence not forming oblique band on anterior third (forming in E. fuscomarmorata ). Estola nearnsi sp. nov. can be separated from E. nigrosignata Breuning, 1940 (see photographs on Bezark 2023) and E. obscura (Fabricius, 1793) , by the elytra without grayish-white or whitish pubescent maculae interspersed (grayish-white or whitish pubescence present on the elytra of E. nigrosignata and E. obscura ); from E. compacta Breuning, 1940 (see photographs on Bezark 2023), by the elytra without wide dark pubescent area on anterior half (present in E. compacta ); from E. hispida Lameere, 1893 (see photograph on Bezark 2023), by the body stouter (slender in E. hispida ), and elytral punctures not distinctly contrasting with the pubescence (distinctly contrasting in E. hispida ); and from E. timbauba Martins & Galileo, 2006 (see photographs on Bezark 2023 and original description), by the pronotal and elytral pubescence distinctly denser (sparser in E. timbauba , especially on the pronotum).

Figures

FIGURES 28–33. Estola nearnsi sp. nov. 28–32) Holotype female: 28) Dorsal habitus; 29) Ventral habitus; 30) Lateral habitus; 31) Head, frontal view; 32) Protarsal claws. 33) Paratype female, dorsal habitus.