Colombicallia contraria, 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 : 364-366

Colombicallia contraria sp. nov.

( Figs 15–20 )

Description. Holotype male ( Figs 15–18 ). Head capsule mostly dark brown, blackish on frons; mandibles black; ventral mouthparts dark reddish brown, except palpomeres brown with yellowish-brown apical region; anteclypeus and labrum reddish brown; scape dark brown; pedicel reddish brown; antennomeres III, V–VII reddish brown on basal quarter, dark brown on remaining surface; antennomere IV reddish brown on basal third, dark brown on remaining surface; antennomeres VIII–X reddish brown on almost entire basal half, brown on remaining surface; antennomere XI mostly yellowish brown. Prothorax, ventral surface of meso- and metathorax, and ventral surface of abdomen black, except yellowish-brown apex of abdominal ventrites 1–4. Elytra dorsally brown with apical region more reddish brown, except dark-brown punctures and basal region close to suture; sides blackish. Femora dark brown; tibiae mostly dark brown with some areas dark reddish brown; tarsomeres I–II dark brown; tarsomeres III mostly reddish brown; tarsomeres IV, V, and claws dark yellowish brown.

Head. Frons and vertex abundantly, coarsely punctate; with abundant yellowish-brown pubescence not obscuring integument; with long, erect setae interspersed, setae brownish on their basal area, gradually whitish or yellowish toward their apices. Area behind upper eye lobes with dense yellowish-brown pubescence. Area behind lower eye lobes with abundant yellowish-brown pubescence close to eye, pubescence not obscuring integument toward ventral surface, obscuring toward upper eye lobe, glabrous close to prothorax. Genae glabrous close to eye, with sparse yellowish-white remaining surface. Postclypeus with abundant yellowish-brown pubescence partially obscuring integument close to frons, except central area glabrous superiorly and with abundant pale-yellow pubescence inferiorly; area close to anteclypeus with moderately abundant, both whitish and yellowish setae, longer laterally. Labrum with sparse white pubescence on posterior 2/3, glabrous on anterior third, except anterior margin with fringe of yellowish-brown setae. Gulamentum smooth, glabrous; intermaxillary process with abundant whitish pubescence not obscuring integument. Antennal tubercles abundantly, finely punctate; with abundant yellowish-brown pubescence not obscuring integument frontally and dorsally, and abundant yellowish-white pubescence partially obscuring integument posteriorly. Area between eyes and base of antennae with dense yellow pubescence. Distance between upper eye lobes 0.26 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.57 times distance between outer margins of eyes. Antennae 1.6 times elytral length, reaching elytral apex at apical quarter of antennomere IX. Scape gradually widened on basal quarter of inner surface, then subparallel-sided toward apex; abundantly, somewhat asperate-punctate; with abundant yellowish-brown pubescence not obscuring integument dorsally and on superior region of lateral surfaces, except apex with abundant white pubescence and base with sparse white pubescence interspersed basally; with abundant white pubescence not obscuring integument ventrally and on inferior region of lateral surfaces; with long, erect setae interspersed throughout, setae entirely white or brownish basally and whitish on their remaining surfaces. Pedicel with sparse white pubescence on base of dorsal and lateral surfaces and entire ventral surface; remaining surface with moderately abundant yellowish-white pubescence not obscuring integument; with long, erect white setae interspersed dorsally and ventrally. Antennomere III with white pubescence basally on dorsal and lateral surfaces and entire ventral surface; remaining surface with abundant, both white and yellowish-brown pubescence not obscuring integument; with long, erect setae ventrally and on apex of dorsal surface, setae brownish on their basal region, white on their remaining surfaces. Antennomere IV with dense white pubescence basally, sparse white pubescence on remaining light basal region, and dark yellowish-brown pubescence not obscuring integument on remaining surface; erect setae as on III but some setae almost entirely brownish. Antennomeres V–X with dense white pubescence on light basal region, and abundant yellowish-brown pubescence not obscuring integument on remaining surface; with long, erect setae ventrally, setae brownish on their basal region, whitish or yellowish on their remaining surface. Antennomere XI with dense white pubescence basally and abundant white pubescence not obscuring integument on remaining surface; with long, suberect yellowish setae interspersed. Antennal formula (ratio) based on length of antennomere III: scape = 0.68; pedicel = 0.13; IV = 0.77; V = 0.48; VI = 0.45; VII = 0.45; VIII = 0.40; IX = 0.39; X = 0.34; XI = 0.39.

Thorax. Prothorax wider than long; sides gradually divergent from anterolateral angles to lateral tubercles, then convergent toward posterolateral angles; lateral tubercles small, conical, located centrally. Pronotum abundantly, coarsely punctate; slightly gibbose on each side of anterior third; with abundant yellowish-brown pubescence not obscuring integument, pubescence shorter laterally; with long, erect setae interspersed, setae brownish on their bases, white apically. Sides of prothorax abundantly, coarsely punctate, punctures shallower toward prosternum; with abundant whitish pubescence not obscuring integument; with erect setae interspersed as on pronotum. Prosternum sparsely, coarsely punctate; with moderately sparse whitish pubescence, more yellowish centrally, and long, erect whitish setae interspersed. Prosternal process abundantly, coarsely punctate; with sparse yellowish pubescence and moderately abundant, long, erect white setae interspersed; narrowest area 0.3 times procoxal width. Mesoventrite sparsely, coarsely punctate centrally, punctures denser laterally; central region with sparse yellowish-white pubescence and long, erect setae of same color interspersed; mesanepisterna and mesepimera with abundant yellowish-white pubescence not obscuring integument. Metanepisterna moderately abundantly, coarsely punctate; with abundant yellowish-white pubescence not obscuring integument, and long, erect setae of same color interspersed. Sides of metaventrite abundantly, coarsely punctate; anterocentral region finely, transversely striatepunctate; central area near apex obliquely striate; posterocentral region smooth; remaining central region sparsely, finely punctate; sides with abundant yellowish-white pubescence and long, erect setae of same color interspersed; central region with moderately sparse white pubescence except glabrous metathoracic discrimen. Scutellum with dense yellow pubescence. Elytra. Abundantly coarsely punctate on anterior half, punctures gradually finer and sparser toward apex on posterior half; dorsal surface with abundant yellowish-brown pubescence partially obscuring integument on some areas; sides with abundant yellowish-white pubescence not obscuring integument; with long, erect setae interspersed throughout, setae brownish with their apices yellowish. Legs. Ventral surface of profemora transversely striate on basal quarter; all femora with basal region with abundant white pubescence not obscuring integument, abundant yellowish-brown pubescence not obscuring integument ventrally and outer surface, and abundant yellowish-white pubescence not obscuring integument on remaining surface; with long, erect white setae interspersed, erect setae more abundant on base of ventral surface, except some erect setae on dorsal surface with their bases brown. Pro- and metatibiae with moderately abundant white pubescence not obscuring integument, except abundant, bristly yellowish-brown pubescence on apical half of protibiae and apical third of metatibiae, setae denser on protibiae; with long, erect white setae interspersed, except some erect setae brownish basally. Mesotibiae with moderately abundant white pubescence dorsally not obscuring integument, except dorsal sulcus with dense, erect, both white and yellowish setae; inner lateral surface with moderately abundant, both white and yellowish-brown setae; outer lateral surface with sparse yellowish-brown pubescence, except apex with sparse white pubescence; ventral surface with yellowish-brown pubescence, denser centrally, except apex with pubescence denser and bristly; with long, erect white setae interspersed, except some erect setae brownish basally. Dorsal surface of tarsi with abundant white pubescence not obscuring integument and long, erect setae of same color interspersed; metatarsomere I longer than II–III together.

Abdomen. Ventrites with abundant yellowish-white pubescence, denser, longer, and more yellowish on ventrites 3–4; with long, erect yellowish-white setae interspersed; ventrite 5 shorter than 2–4 together. Apical margin of ventrite 5 subtruncate.

Female ( Figs 19–20 ). Similar to males, differing as follows: antennae slightly shorter, 1.5 times elytral length, reaching elytral apex at middle of antennomere X (only one female measured); abdominal ventrite 5 about as long as 2–4 together, and with narrow, longitudinal sulcus anterocentrally.

Variation. Prothorax ventral surface of meso- and metathorax, and ventral surface of abdomen brown or dark reddish brown with irregular blackish areas; femora, tibiae, and tarsi mostly reddish brown or dark reddish brown.

Dimensions in mm (Holotype male/ paratypes male/ paratypes female). Total length, 6.45/5.15–5.70/5.40–6.75; prothoracic length, 1.35/1.05–1.15/1.05–1.40; anterior prothoracic width, 1.35/1.05–1.15/1.15–1.45; posterior prothoracic width, 1.50/1.20–1.30/1.25–1.65; maximum prothoracic width, 1.80/1.40–1.60/1.50–1.95; humeral width, 2.20/1.70–1.95/1.85–2.40; elytral length, 4.55/3.50–4.00/4.00–5.00.

Type material. Holotype male from MEXICO, Vera Cruz : UNAM Field Station , Los Tuxtlas, 35 km NE Catemaco, 23-24.IV.1991, F.T. Hovore leg. ( CASC) . Paratypes — MEXICO, Veracruz: 2 males, 3 females , same data as holotype (1 male, 1 female MZSP; 1 male, 2 females, LGBC) .

Etymology. The species name “contraria” (Latin, meaning opposite, contrary) refers to the distinct color difference between the dorsal and ventral pubescence of the species, which separates it from the other two know species.

Remarks. Colombicallia contraria sp. nov. is similar to C. setosa Santos-Silva, Bezark & Galileo, 2016 ( Fig. 24 ; see also photographs on Bezark 2023 and original description), but differs as follows: general color darker; pubescence on dorsal surface of the scape sparser ( Figs 15, 19 ); and pubescence on dorsal surface of elytra distinctly contrasting in color with that on sides ( Fig. 17 ). In C. setosa , the general color is lighter, pubescence on dorsal surface of the scape is denser ( Fig. 24 ), elytral pubescence on dorsal surface and sides is of the same color ( Fig. 24 ). It differs from C. curta Galileo & Martins, 1992 ( Figs 21–23 ) by the lateral tubercles of the prothorax slender and more acute apically ( Figs 15, 19 ) (stouter and less acute apically ( Fig. 21 ) in C. curta ), dorsal pubescence on elytra yellowish-brown ( Figs 15, 19 ) (grayish-white ( Fig. 21 ) in C. curta ), pubescence on dorsal surface of elytra distinctly contrasting in color with that on sides ( Fig. 17 ) (not contrasting ( Fig. 23 ) in C. curta ), elytral punctures finer and denser ( Figs 15, 19 ) (coarser and sparser ( Fig. 21 ) in C. curta ), and erect setae on elytra longer and erect ( Fig. 17 ) (shorter and suberect ( Fig. 23 ) in C. curta ).

Figures

FIGURES15–20. Colombicallia contraria sp. nov. 15–18) Holotype male: 15) Dorsal habitus; 16) Ventral habitus; 17) Lateral habitus; 18) Head, frontal view. 19–20) Paratype female: 19) Dorsal habitus; 20) Ventral habitus.

FIGURES 21–24. Colombicallia spp. 21–23) Colombicallia curta Galileo & Martins, 1992, paratype female: 21) Dorsal habitus; 22) Ventral habitus; 23) Lateral habitus. 24) Colombicallia setosa Santos-Silva, Bezark & Galileo, 2016, holotype male, lateral habitus.