Dihammaphora erecta, Bezark & Santos-Silva, 2023

Bezark, Larry G. & Santos-Silva, Antonio, 2023, Description of two new species of Cerambycidae and new records and notes on American Cerambycidae and Disteniidae (Coleoptera), Zootaxa 5351 (3), pp. 356-370 : 358-360

Dihammaphora erecta sp. nov.

( Figs 1–5 )

Description. Holotype female. Integument mostly black; mentum, maxillary palpomere IV, and labial palpomere III dark brown; remaining ventral mouthparts reddish brown; anteclypeus dark brown; anterior area of labrum dark yellowish brown. Anterior quarter of prosternum dark brown. Protrochanters mostly dark brown; meso- and metatrochanters mostly reddish brown; basal half of peduncle of metafemora orangish brown and remaining surface gradually black toward apex. Apex of abdominal ventrites 1–4 pale yellow.

Head. Frons abundantly, coarsely, partially confluently punctate, especially laterally and close to clypeus; area between punctures densely, minutely punctate; with moderately abundant white pubescence not obscuring integument close to eyes and clypeus and very sparse white pubescence on remaining surface.Area between antennal tubercles and upper eye lobes abundantly, coarsely, partially confluently punctate, and area between and inside punctures densely, minutely rugose; remaining surface of vertex densely rugose-punctate, punctures distinctly finer, shallower, and confluent than on anterior region; area between antennal tubercles with a few short, decumbent white setae; area close to posterior margin of upper eye lobes with one long, erect, thick yellowish-white seta; remaining surface of vertex glabrous. Area behind upper eye lobes shallowly, coarsely punctate close to eye, punctures slightly deeper close to prothorax, especially superiorly; mostly glabrous. Area behind lower eye lobes abundantly, coarsely, shallowly punctate close to eye, slightly rugose close to prothorax; with moderately abundant and short, suberect white setae close to eye, glabrous on remaining surface. Genae abundantly, finely rugose-punctate, except smooth apex; with abundant white pubescence not obscuring integument, except glabrous smooth area. Antennal tubercles abundantly, moderately coarsely punctate, except smooth apex; with moderately abundant white pubescence not obscuring integument, except glabrous smooth area. Gulamentum smooth, glabrous on posterior third, transversely rugose-punctate, with sparse white pubescence on anterior 2/3, pubescence slightly denser laterally; intermaxillary process finely rugose-punctate, glabrous. Distance between upper eye lobes 0.34 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.42 times distance between outer margins of eyes. Antennae 11-segmented, 1.1 times elytral length, almost reaching posterior third of elytra. Scape abundantly, moderately coarsely, shallowly punctate dorsally and laterally, with general surface densely, minutely rugose; ventral surface abundantly, transversely rugose, with punctures interspersed on some areas; with sparse whitish pubescence throughout. Pedicel abundantly, moderately coarsely, shallowly punctate, with general surface densely, minutely rugose, except smooth apex; with sparse whitish pubescence except glabrous smooth area. Antennomeres III–IV slightly widened from base to apex; outer apex rounded; with sculpturing and pubescence as on pedicel, except apex not smooth; III with a few long, erect yellowish-brown setae close to apex of ventral surface; IV with a few long, erect yellowish-white setae close to apex of ventral surface. Antennomeres V–X more widened toward apex on outer surface than III and IV, with outer apex angular; V–IX abundantly, finely punctate on posterior 3/4 of outer dorsal surface and outer surface, somewhat sparsely, finely punctate on remaining surface; abundantly punctate on V–IX with abundant whitish pubescence not obscuring integument, pubescence more yellowish white depending on light intensity and source; remaining surface on V–IX with sparse whitish pubescence; apex of dorsal surface of V–IX with a few long, erect yellowish setae and apex of ventral surface with a few long, erect whitish setae; X abundantly, finely punctate, except base less distinctly punctate; X with abundant whitish pubescence throughout, except glabrous base, and a few long, erect whitish setae apically on dorsal and ventral surfaces. Antennomere XI fusiform; abundantly, finely punctate; with abundant whitish pubescence not obscuring integument, except glabrous base; with a few short, erect whitish setae interspersed. Antennal formula (ratio) based on length of antennomere III: scape = 1.10; pedicel = 0.45; IV = 1.00; V = 0.95; VI = 0.90; VII = 0.75; VIII = 0.70; IX = 0.70; X = 0.60; XI = 0.75.

Thorax. Prothorax distinctly longer than wide; anterior and posterior constrictions well marked; sides slightly rounded between constrictions. Pronotum coarsely, shallowly alveolate-punctate, except subsmooth central band, from before middle to posterior fifth, triangular area close to posterior margin with alveolate punctures very shallow, and area close to anterior margin with finer and irregular punctures; nearly all punctures with minute whitish setae. Side of prothorax with coarsely, shallowly alveolate-punctate, punctures shallower toward prosternum, except area close to anterior margin with punctures shallower and barely distinct, this area gradually widened toward prosternum, with subsmooth area close to posterior margin; nearly all punctures with minute whitish setae. Sides of prosternum with subelliptical area with moderately abundant and coarsely punctate, from near procoxal cavity to after middle; central area densely rugose-punctate from prosternal process to before middle; anterior quarter densely, shallowly, coarsely alveolate-punctate; remaining central area between subelliptical punctate area coarsely alveolate-punctate; area between anterior margin of subelliptical punctate area and anterior quarter transversely rugose-punctate; subelliptical punctate area, central area close to prosternal process, and central area close to anterior quarter with a few short, decumbent white setae; remaining area between subelliptical punctate areas with abundant white pubescence not obscuring integument; anterior quarter glabrous. Prosternal process with abundant white pubescence partially obscuring integument, except glabrous sides of apical area; narrowest area 0.31 times procoxal cavities. Ventral surface of meso- and metathorax with abundant white pubescence, partially lost on part of mesoventrite and mesoventral process and minute on part of metaventrite and metanepisternum, except central area of metaventrite with moderately sparse, long, erect white setae; mesoventral process slightly wider than mesocoxa, with apex widely emarginate; sides and anterocentral region of metaventrite densely, minutely punctate; remaining central area sparsely, coarsely punctate except smooth area of metathoracic discrimen. Scutellum smooth, glabrous. Elytra. Sides subparallel-sided basally, slightly convergent toward middle, then widened and rounded toward truncate apex; sides of posterior quarter crenulate; longitudinal dorsal carina and humeral carina distinct from base to near apex; abundantly, coarsely punctate, part of punctures aligned; nearly all punctures with minute whitish setae, setae slightly longer on posterior third of elytra, and a few punctures close to apex with moderately long, erect, thick yellowish setae. Legs. Profemora with moderately sparse white pubescence on peduncle and abundant white pubescence not obscuring integument on femoral club; meso- and metafemora with sparse white pubescence on dorsal and lateral surfaces of peduncles and abundant white pubescence not obscuring integument on remaining surface. Protibiae with sparse, bristly setae dorsally and laterally, setae white on basal 3/4, yellowish on apical quarter; ventral surface with abundant, bristly pale-yellow setae, setae more abundant and darker toward apex. Meso- and metatibiae with sparse, bristly, short, both yellowish and whitish setae dorsally and laterally; ventral surface with bristly yellowish-brown setae gradually longer and denser toward apex; sides with moderately short, suberect, thick yellowish setae interspersed. Dorsal surface of tarsi with abundant white pubescence not obscuring integument; metatarsomere I longer than II–III together.

Abdomen. Sides of ventrites with abundant white pubescence not obscuring integument; central area with abundant, long, erect pale-yellow setae, setae denser and longer toward apex and absent on basal half of ventrite 1 ( Fig. 5 ); apex of ventrite 5 rounded.

Dimensions in mm (Holotype female/ paratype female). Total length, 5.70/5.65; prothoracic length, 1.30/1.30; anterior prothoracic width, 0.70/0.70; posterior prothoracic width, 0.85/0.85; maximum prothoracic width, 0.90/0.85; humeral width, 1.10/1.10; elytral length, 3.50/3.45.

Type material. Holotype female from ECUADOR, Manabí: vicinity Montecristi , 01.01534ºS 080.68195ºW, 355 m, 17-26.I.2006, F.T. Hovore & I. Swift leg. ( CASC) . Paratype female, same data as holotype ( LGBC) .

Etymology. The specific epithet “ erecta ” (Latin) refers to the dense, erect setae on the abdomen.

Remarks. Dihammaphora erecta sp. nov. is similar to D. uncinata Napp & Mermudes, 2010 and D. falsa Napp & Mermudes, 2010 , but differs from both by the procoxae without unciform projection (present in D. uncinata and D. falsa ), and by the abdominal ventrites with dense and erect setae (absent in D. uncinata and D. falsa ). It differs from D. uncinata also by the prothorax entirely black (reddish in D. uncinata , except the black central area of the pronotum); and from D. falsa by the prosternum with different sculpturing (with fine, shallow, very sparse punctures ( Napp & Mermudes 2010) in D. falsa ).

Dihammaphora erecta sp. nov. can be included in the alternative of couplet “3” from Napp & Mermudes (2010), modified:

3(1). Prothorax reddish with a transverse black band on base. Brazil (Goiás)....................... D. scutata Gounelle, 1911 – Prothorax entirely orangish, reddish or black................................................................3’ 3’(3). Prothorax black except dark-brown basal area of ventral surface. Ecuador........................... D. erecta sp. nov. – Prothorax entirely orangish or reddish..................................................................... 4

Figures

FIGURES 1–5. Dihammaphora erecta sp. nov., holotype female: 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus; 4) Head, frontal view; 5) Abdominal ventrites.