Trichoanoreina panamensis Wappes and Santos-Silva, 2020

Wappes, James E. & Santos-Silva, Antonio, 2020, Taxonomic contributions to Neotropical Lamiinae (Coleoptera: Cerambycidae) including a new genus, five new species and a new synonym, Insecta Mundi 2020 (769), pp. 1-21 : 6-7

Trichoanoreina panamensis Wappes and Santos-Silva , new species

( Fig. 11–16 )

Description. Male. Integument mostly dark-brown; mouthparts mostly dark reddish-brown, with palpi distinctly lighter; anteclypeus and labrum dark reddish-brown; basal half of antennomere III dark reddish-brown; basal half of antennomere IV reddish-brown; basal half of antennomere V orangish-brown; basal 2/3 of antennomere VI orange; almost entire basal half of antennomeres VII and X orange; basal half of antennomere VIII orange; basal quarter of antennomere IX orange; about basal 2/3 of antenno- mere XI orange; elytra almost black basally, slightly, gradually lighter toward apex; apex of abdominal ventrites I–IV narrowly yellowish.

Head. Frons densely micropunctate, with fine, sparse punctures interspersed; with yellowish-brown pubescence partially obscuring integument, with long, erect, sparse yellowish-white setae interspersed (darker depending on angle of light source, especially basally). Vertex finely, sparsely punctate; with yellowish-brown pubescence nearly obscuring integument, except glabrous narrow area along median groove. Area behind lower eye lobes with dense yellowish-brown pubescent band close to eye, glabrous close to prothorax, with long, erect yellowish-white setae close to eye. Genae 0.65 times length of lower eye lobe; densely micropunctate with fine punctures interspersed, with yellowish-brown pubescence partially obscuring integument, except nearly glabrous longitudinal band close to frons; with long, erect, sparse yellowish-white setae interspersed in pubescent area (darker depending on angle of light source, especially basally). Gulamentum glabrous, except narrow anterior area with yellowish-brown pubescence and a few long, erect yellowish-brown setae interspersed. Postclypeus with pubescence as on frons in wide central area close to it, distinctly sparser toward anteclypeus, glabrous laterally; with long, erect, sparse setae in area with sparse pubescence (brown basally, gradually pale-yellow toward apex). Labrum with posterior half coplanar with anteclypeus, inclined in anterior half; posterior half nearly glabrous; anterior half with yellowish-brown pubescence not obscuring integument, with long, erect setae interspersed (brown basally, yellowish toward apex). Distance between upper eye lobes 0.25 times length of scape (0.18 times distance between outer margins of eyes); in frontal view, distance between lower eye lobes 0.75 times length of scape (0.54 times distance between outer margins of eyes). Antennae 2.1 times elytral length, reaching elytral apex at base of posterior third of antennomere VII. Scape with yellowish-brown pubescence partially obscuring integument, with long, erect yellowish-white setae interspersed throughout, some of them darkened basally, lighter area appearing to be nearly white (depending on light intensity). Pedicel with short brownish pubescence not obscuring integument, with long, erect setae as on scape (nearly absent dorsally). Antennomeres with yellowish-white pubescence in light area, shorter, sparser, brownish in dark area; antennomere III with long, erect yellowish-white setae in light area (distinctly sparser dorsally), and long, erect brown setae on ventral surface of dark area; ventral surface of antennomeres IV–VII with long, erect yellowish-white setae in light area, brown in dark area (distinctly, gradually sparser toward VII); apex of antennomeres IV–IX each with one long, erect dark seta on dorsal apex. Antennal formula (ratio) based on length of antennomere III: scape = 0.67; pedicel = 0.14; IV = 0.78; V = 0.53; VI = 0.51; VII = 0.48; VIII = 0.47; IX = 0.46; X = 0.43; XI = 0.43.

Thorax. Prothorax distinctly transverse; lateral tubercle large, with apex distinctly rounded. Pronotum with large, elevated, somewhat transverse tubercle on each side of anterior half, and another slightly elevated central tubercle in posterior half; coarsely, somewhat sparsely punctate (punctures forming transverse row near anterior and posterior margins), absent on tubercles; with yellowish-brown pubes- cence partially obscuring integument, especially in anterior third, shorter, brownish, nearly absent on top of anterior tubercles, absent on top of posterior tubercle. Sides of prothorax coarsely, sparsely punctate; with yellowish-brown pubescence nearly obscuring integument. Prosternum with yellowishbrown pubescence laterally, partially obscuring integument, gradually transitioning to yellowish-white, slightly sparser toward central area. Prosternal process 0.7 times width of procoxal cavity; pubescence as in central area of prosternum. Sides of ventral surface of meso- and metathorax with yellowish-brown pubescence partially obscuring integument, gradually yellowish-white toward central area; with a few long, erect yellowish setae on sides of posterior area of metaventrite. Mesoventral process distinctly wider than mesocoxal cavity. Scutellum with brownish pubescence not obscuring integument laterally, yellowish-brown centrally and on posterior margin. Elytra. Sides distinctly, gradually narrowed toward oblique apex; anterior fifth with slightly elevated, but distinct gibbosity in center of dorsal surface, covered with dense tuft of erect dark-brown setae, with distinctly longer, sparse dark brown setae interspersed; coarsely, somewhat sparsely punctate in anterior third, punctures gradually finer, sparser toward apex; posterior 2/3 of dorsal surface with wide, longitudinal carinae; base with dark yellowishbrown pubescence dorsally, not obscuring integument; area of basal tubercles with transverse brownish pubescent band, widened close to suture, distinctly not obscuring integument, fused with same type of pubescence in inclined anterior 2/3 (this latter area reaching sides of dorsal surface in about anterior third, slightly widened toward its dorsal apex); remaining surface of dorsal surface of anterior half with yellowish-brown pubescence partially obscuring integument, gradually yellowish-white toward suture; posterior half with mostly white pubescence partially obscuring integument, followed by irregular areas with pale-yellow pubescence interspersed, area closer to apex dominated by pale-yellow pubescence; with sparse long, erect brown setae dorsally and laterally in anterior third, paler-yellow on sides of posterior 2/3. Legs. Femora with yellowish-white pubescence partially obscuring integument, large areas with light yellowish-brown pubescence and long, erect yellowish-white setae interspersed (appearing whiter depending on light intensity). Pro- and mesotibiae with light yellowish-brown pubescence in anterior 2/3, brown in posterior third, except black pubescent tuft on base of dorsal sulcus of mesotibiae; with long, erect, somewhat abundant yellowish-white setae in anterior two-thirds (whiter depending on light intensity), dark-brown in posterior third. Metatibiae with light yellowish-brown pubescence, with long, erect yellowish-white setae interspersed in anterior 2/3, brownish in posterior third.

Abdomen. Ventrites with yellowish-white pubescence not obscuring integument, slightly yellower in posterior half of sides of I–IV, shorter, sparser, brownish in superior half of sides of I–IV; with long, erect, sparse yellowish-white setae laterally. Posterior margin of ventrite V slightly concave.

Dimensions in mm. Total length 6.30; prothoracic length 1.20; anterior prothoracic width 1.65; poste- rior prothoracic width 1.80; widest prothoracic width (between apices of lateral tubercles) 2.20; humeral width 2.65; elytral length 4.40.

Type material. Holotype male from PANAMA, Panama: Barro Colorado Island , 9°09′N / 79°51′W, 27.VIII.1997, Pickering-Windsor col. ( FSCA, formerly ACMT).

Etymology. Named for the country ( Panama) where it was collected.

Remarks. Júlio and Monné (2005) defined Trichoanoreina as follows (translated; summarized): “Body surface entirely covered by decumbent pubescence. Genae, inner side of antennae, elytra and legs with long, erect setae. Lower eye lobes approximately 1.5 times as long as gena; upper eye lobes distant from each other by twice length of one lobe in male, 4.0 times in female. Antennae 11-segmented, surpassing elytral apex in male, only reaching elytral apex in female. Prothorax wider than long; with row of punctures anteriorly and posteriorly; sides with slight protuberance. Central area of pronotum flattened. Metaventrite with U-shaped elevation anteriorly (central area of “U” depressed). Elytra flat, slightly sloped distally, apex nearly straight. Legs in male stouter; femora clavate; profemora not pedunculate.” Although the specimen figured in Bezark (2020) is a male of Trichoanoreina albomaculata Júlio and Monné, 2005 (following the original description – length of antennae), it cannot be the holotype because the specimen is distinctly different from the photograph of the holotype in the original description. Furthermore, the description of the distance between upper eye lobes in both males are distinctly wider than twice length of one lobe (the distance is approximately 4.0 times the width of one lobe, as reported to be in female). Also, although not reported, the basal area of the elytra has a gibbosity, the lateral projection of the prothorax cannot be defined as a “slight protuberance”, and the elytral apex is sinuous, with outer angle slightly projected. The new species differs from T. albomaculata Júlio and Monné, 2005 by the upper eye lobes distinctly wider and closer to each other (distinctly more distant from each other and narrower in T. albomaculata ); central area of pronotum not distinctly flattened centrally (flattened in T. albomaculata ); elytra without contrasting white macula on sides of middle (present in T. albomaculata ); basal gibbosity of elytra with dense erect setae (absent in T. albomaculata ); and elytral apex oblique, lacking projection at outer angle (present in T. albomaculata ). The new species also differs from T. albomaculata ( Fig. 17–21 ) by the shape of the metaventral process, which is not U-shaped. The pronotal shape of Trichoanoreina panamensis n. sp. resembles that of many Oreodera Audinet-Serville, 1835 species , but the presence of abundant erect setae separates it from the species of that genus.

Figures

Figures 11–16. Trichoanoreina panamensis, holotype male. 11) Dorsal habitus. 12) Ventral habitus. 13) Lateral habitus. 14) Elytral base, lateral view. 15) Prosternal process, meso- and metaventral processes. 16) Head, frontal view.

Figures 17–21. Trichoanoreina albomaculata. 17–19) Male. 17) Dorsal habitus. 18) Ventral habitus. 19) Lateral habitus. 20–21) Female. 20) Dorsal habitus. 21) Ventral habitus.