Lingafelterellus barclayi, Bezark & Santos-Silva, 2023

Bezark, Larry G. & Santos-Silva, Antonio, 2023, New species and new country records for Neotropical Cerambycinae (Coleoptera, Cerambycidae), Zootaxa 5227 (4), pp. 473-485 : 474-478

Lingafelterellus barclayi sp. nov.

( Figs 1–9, 12–14 )

Description. Holotype female ( Figs 1–5 , 12 ). Head capsule black, except brown areas of genae; ventral mouthparts mostly reddish brown, with some areas dark orangish brown and dark brown; basal 3/4 of mandibles orangish brown, except dark brown base and inferior margin, and apical quarter blackish; postclypeus black, except orangish brown parts of sides; anteclypeus brown basally and apically, orangish brown on remaining surface; labrum brown close to anteclypeus, mostly orangish brown on remaining surface; antennae orangish brown, slightly brownish on antennomere XI, except brownish inferior region of inner surface and inner region of ventral surface. Prothorax black, except dark-brown anterior area of pronotum, orangish-brown sides of area close to posterior margin on pronotum, dark brown central area close to posterior margin of pronotum, and superior region of area close to posterior margin on sides of prothorax orangish brown superiorly, gradually brown toward inferior region. Ventral surface of meso- and metathorax mostly black. Scutellum black. Elytra with large, oblique yellowish-white band on anterior third, from epipleural to sutural margin, with its anterior and posterior margins irregularly yellowish-brown; with somewhat small yellowish-brown band about middle, starting on epipleural margin, slightly surpassing humeral carina; with large, irregular yellowish-white macula located from about middle to posterior third, from suture to near humeral carina, with its margins irregularly yellowish-brown; area between base and first light macula dark brown, except black part of dorsal surface; area between anterior and posterior light maculae brown, except black confluent punctures; area between second light macula and apex brown, gradually lighter toward apex, except some black punctures. Procoxae and protrochanters orangish brown; meso- and metacoxae and meso- and metatrochanters dark reddish brown. Femoral peduncles reddish brown; femoral clubs dark brown, except brown apex. Tibiae mostly dark reddish brown with brownish areas. Tarsi mostly light reddish brown, more orangish brown depending on light intensity. Ventrites 1–4 mostly dark brown laterally, mostly dark reddish brown centrally; ventrite 5 yellowish brown basally, reddish brown on remaining surface, except blackish posterocentral half.

Head. Frons abundantly, coarsely, confluently punctate, rugose general appearance, except finely rugose triangular plate close to clypeus; with somewhat abundant and long, decumbent whitish setae not obscuring integument, and long, erect setae of same color interspersed. Vertex somewhat abundantly, coarsely, shallowly punctate; with sparse, short, decumbent whitish setae, setae slightly denser close to antennal tubercles.Area behind eyes somewhat rugose-punctate, with sparse, decumbent whitish setae. Genae rugose-punctate, except smooth apex; with sparse whitish pubescence, except glabrous smooth area; with sparse, long, erect whitish setae interspersed. Antennal tubercles somewhat abundantly, coarsely punctate, except smooth apex; with somewhat sparse and short, decumbent whitish setae, except glabrous smooth area. Wide central area of postclypeus finely punctate centrally, coarsely, confluently punctate laterally; with sparse, somewhat long and bristly whitish setae close to frons, and a few bristly yellowish setae centrally close to anteclypeus. Sides of postclypeus glabrous. Labrum finely punctate posteriorly, smooth anteriorly; with sparse, short, bristly yellowish-white setae about middle, with long, erect, thick setae of same color interspersed, glabrous on remaining surface. Posterior half of gulamentum smooth, glabrous; anterior half coarsely, shallowly, confluently punctate laterally, transversely rugose centrally, and with a few, both short and long, whitish setae. Distance between upper eye lobes 0.55 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 0.85 times elytral length, almost reaching middle of elytra. Scape not asperate on dorsal apical third; with sparse, both short and long, erect whitish setae dorsally and laterally, and a few long, erect whitish setae on posterior third of ventral surface. Pedicel with a few short, decumbent whitish setae, and long, erect setae of same color interspersed, erect setae longer ventrally. Antennomeres III–IV somewhat abruptly widened on posterior third; with short spine on inner apex; with a few decumbent, somewhat long whitish setae, and long, erect setae of same color interspersed, erect setae longer near ventral apex. Antennomeres V–VI gradually widened from base to apex; with spicule on inner apex; with sparse yellowish pubescence, almost absent on basal third of V, and long, erect whitish setae interspersed, erect setae longer ventrally. Antennomeres VII–X gradually widened from base to apex; without spicule apically; with abundant whitish pubescence not obscuring integument, and short, erect yellowish setae interspersed. Antennomere XI cylindrical, somewhat acutely narrowed apically; with abundant whitish pubescence not obscuring integument, and short, erect yellowish setae interspersed. Antennal formula based on length of antennomere III: scape = 1.22; pedicel = 0.44; IV = 0.78; V = 1.11; VI = 1.00; VII = 0.94; VIII = 0.78; IX = 0.89; X = 0.67; XI = 1.00.

Thorax. Prothorax longer than wide; sides slightly rounded from anterior seventh to posterior seventh. Pronotum somewhat sparsely, coarsely punctate, expect smooth central area between anterior and posterior quarter, posterior seventh slightly transversely rugose, and central area close to inferior smooth region finely, abundantly punctate; anterior 3/4 with sparse, short, decumbent whitish setae, and long, erect setae of same color interspersed; posterior seventh with a few long, erect whitish setae laterally, short, somewhat abundant whitish setae centrally, with long, erect setae of same color interspersed; area close to posterior seventh with abundant whitish pubescence not obscuring integument, and long, erect setae of same color interspersed. Sides of prothorax somewhat abundantly, shallowly, coarsely punctate superiorly, punctures sparser toward prosternum; with sparse, both short and decumbent and long and erect whitish setae. Prosternum sparsely, coarsely punctate on sides of posterior 2/3, transversely rugose-punctate on center of posterior 2/3, longitudinally rugose-punctate on sides of anterior third, and slightly rugose on center of anterior third; with sparse, both short and decumbent and long and erect whitish setae. Prosternal process laminiform centrally, triangularly expanded on posterior quarter; with whitish pubescence not obscuring integument, denser on posterior quarter. Mesoventrite somewhat coarsely rugose-punctate; with sparse, both short decumbent and long and erect whitish setae. Mesanepisternum and mesepimeron somewhat abundantly, coarsely punctate; with abundant whitish pubescence not obscuring integument, and long, erect setae of same color interspersed. Mesoventral process slightly narrowed toward posterior third, then slightly expanded toward apex; apex distinctly emarginate centrally; narrowest area 0.2 times mesocoxal width. Metanepisternum with sparse whitish pubescence on large central area, pubescence denser basally and apically. Metaventrite with sparse, both short and long whitish setae. Scutellum with abundant whitish pubescence partially obscuring integument, except glabrous longitudinal central area. Elytra. Slightly narrowed from humerus to posterior third, then slightly widened toward rounded apex; dorsal surface abundantly, coarsely punctate from base to apex of first light band, then strongly rugose-punctate toward posterior fifth, punctures confluent between the two light areas, less so toward posterior fifth, and posterior fifth sparsely, coarsely punctate; humeral carina well-marked from humerus to posterior fifth; central area between epipleural margin and humeral carina with row of very coarse punctures; with sparse, short, erect yellowish-white setae, sparser on anterior quarter, and long, erect setae of same color interspersed, erect setae more abundant on anterior quarter. Legs. Femora pedunculate-clavate; peduncle with a few long, erect whitish setae, more abundant on ventral surface; femoral clubs with sparse whitish pubescence dorsally, almost absent on remaining surface, and long, erect setae of same color interspersed. Tibiae with somewhat abundant, long, erect yellowish-white setae, except ventral surface of protibiae with bristly yellowish-brown pubescence, and apical ventral area of meso- and metatibiae with bristly yellowish-brown pubescence. Metatarsomere I slightly longer than II–III together.

Abdomen. Ventrite 1 with somewhat sparse whitish pubescence on sides of anterior quarter and sparse, long, erect setae of same color on remaining surface, except glabrous apex; ventrites 2–5 with somewhat abundant whitish pubescence laterally, sparse whitish pubescence on center of anterior third, pubescence absent basally, and long, erect setae of same color interspersed, except glabrous apex on 2–4; apex of ventrite 5 slightly rounded.

Male ( Figs 6–8, 13–14 ). Similar to females, differing by antennae about as long as elytra, almost reaching posterior quarter of elytra, and apex of ventrite 5 truncate.

Variation in the paratypes. Antennae brown from basal quarter of antennomere V; antennomere V with or without spicule on outer apex; light elytra maculae from whitish or yellowish-white with yellowish-brown margins, or entirely yellowish brown ( Fig. 6 ); elytra with only one light macula or without light maculae ( Fig. 9 ); anterior light macula reaching or almost reaching epipleural margin, or not reaching inclined lateral area ( Fig. 8 ) located on anterior third; elytra with our without yellowish-brown macula about middle, from epipleural margin to sides of dorsal surface; posterior light dorsal macula reaching or not humeral carina; apical area of elytra from light brown to almost dark brown; tibiae and tarsi from mostly brownish to entirely dark brown; ventrite 5 mostly orangish brown; sides of prothorax straight; scutellum with minute, very sparse whitish setae throughout.

Dimensions (mm) (holotype female/ paratypes male/ paratypes female). Total length, 4.35/3.75–4.50/4.10–5.40; prothoracic length, 0.85/0.75–0.90/0.85–1.10; anterior prothoracic width, 0.65/0.60–0.70/0.60–0.80; posterior prothoracic width, 0.55/0.55–0.60/0.55–0.75; maximum prothoracic width, 0.70/0.65–0.70/0.65–0.90; humeral width, 0.80/0.75–0.90/0,80–1.05; elytral length, 2.75/2.60–3.05/2.75–3.65.

Type material. Holotype female from ECUADOR, Loja: 18.5 km N Gonzanama , 04º08’08.5”S 79º23’36.4”W, 22.II.2006, F.T. Hovore & I. Swift leg. ( CASC) . Paratypes – 3 males, 2 females, same data as holotype (1 male, 1 female, MZSP; 2 males, 1 female, LGBC).

Etymology. This species is named after Maxwell V. Barclay, curator of coleoptera at the Natural History Museum in London. When the first author initially saw this species there was some confusion as to its familial placement, because it resembled species of Cantharidae ; Max nudged him in the right direction.

Remarks. Lingafelterellus barclayi sp. nov. differs from L. clarkei Santos-Silva & Galileo, 2017 ( Figs 10–11 ) as follows: prothorax almost entirely black; larger central area of the elytra coarsely rugose-punctate, with punctures confluent; elytra with row of single very coarse punctures between epipleural margin and humeral carina ( Fig. 6 ); and posterior third of scape not asperate. In L. clarkei , the prothorax is yellowish-brown with dark-brown macula on pronotum, elytra not rugose and punctures not confluent, elytra with two rows of coarse punctures between epipleural margin and humeral carina ( Fig. 10 ), and the posterior third of scape is asperate dorsally. It differs from L. birai Santos-Silva & Galileo, 2017 by the same features as L. clarkei , except the color of the prothorax.

Figures

FIGURES 1–7. Lingafelterellus barclayi sp. nov. 1–5) Holotype female: 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus; 4); Head and pronotum; 5) Sculpturing on the lateral of the elytra; 6-7) paratype male.

FIGURES 8–14. Lingafelterellus spp. 8–9) Lingafelterellus barclayi sp. nov., dorsal habitus: 8) Paratype male; 9) Paratype female. 10–11) Lingafelterellus clarkei Santos-Silva & Galileo, 2017, female from Bolivia (Santa Cruz): 10) Sculpturing on the lateral of the elytra; 11) Dorsal habitus. 12–14) Lingafelterellus barclayi sp. nov., antennomeres III–V: 12) Holotype female; 13) Paratype male; 14) Paratype male.