Eupogonius martinezi, Bezark & Santos-Silva, 2023

Bezark, Larry G. & Santos-Silva, Antonio, 2023, American biodiversity in Lamiinae (Coleoptera, Cerambycidae): description of three new species of Eupogonius LeConte and new distribution records, Zootaxa 5296 (3), pp. 406-420 : 411-414

Eupogonius martinezi sp. nov.

( Figs 9, 11 , 16–19 )

Description. Holotype female. Head capsule dark brown, except brown ventral surface; ventral mouthparts light brown with irregular yellowish-brown areas, except dark-brown palpomeres with yellowish brown apex; postclypeus brown; anteclypeus dark yellowish-brown except dark brown area close to labrum; labrum dark brown on posterior half, yellowish brown on anterior half; scape brown on basal third, dark brown on apical 2/3; pedicel light brown; antennomere III light brown on basal 3/4, dark brown on apical quarter; antennomere IV orangish brown on basal 2/3, dark brown on apical third; antennomeres V–IX orangish brown basally, dark brown on remaining surface; antennomere X dark brown; antennomere XI dark brown on basal 2/3, yellowish brown on apical third. Prothorax mostly dark brown; posterior region of pronotum, posterior region of sides of prothorax, and area of prosternum close to procoxal cavities slightly lighter; prosternal process brown basally, gradually lighter toward yellowish-brown apex. Anterocentral area of mesoventrite blackish, posterocentral area brown, and sides dark brown; mesanepisternum, mesepimeron, and metanepisternum dark brown; mesoventral process light brown, except brown anterocentral area. Metaventrite dark brown laterally, blackish centrally. Scutellum brown. Elytra dark brown with irregular light-brown areas interspersed on anterior 3/4, brown, with irregular orangish-brown areas interspersed on posterior quarter, except area close to epipleural margin entirely orangish brown. Coxae dark brown with some orangish brown areas; trochanters orangish brown; femora dark brown, except narrow dark orangish-brown area on base. Tibiae orangish brown, except brownish apical third of protibiae and brown apical third on meso- and metatibiae. Protarsomeres I–III dark orangish brown; protarsomere IV and basal 3/4 of V dark brown, and apex of V dark orangish brown; meso- and metatarsomeres I–III dark brown, IV, base and apex of V dark orangish brown; claws mostly orangish brown. Ventrites dark brown, except slightly lighter base and apex of I–IV.

Head. Frons abundantly, coarsely punctate; with abundant yellowish-white pubescence not obscuring integument, pubescence sparser laterally close to postclypeus, denser superiorly on each side of central region; with long, erect white setae interspersed centrally, and long, erect dark-brown setae interspersed throughout.Area between antennal tubercles somewhat abundantly, coarsely punctate; with dense yellowish-brown pubescence laterally and sparse pubescence of same color centrally, long, white setae interspersed centrally, and long, erect dark brown setae interspersed laterally. Area between antennal tubercle and upper eye lobes somewhat abundantly, coarsely punctate; with dense yellowish-brown pubescence; erect setae as on area between antennal tubercles. Area between upper eye lobes with dense yellowish-brown pubescence close to eye, yellowish-brown pubescent band centrally, and sparse brownish pubescence on remaining surface, erect setae as on area between antennal tubercles. Remaining surface of vertex somewhat abundantly, coarsely punctate, with sparse yellowish pubescence centrally, absent laterally, with long, erect dark brown setae and a few long, erect white setae. Area behind upper eye lobes abundantly, coarsely punctate; with abundant yellowish-brown pubescence partially obscuring integument, pubescence sparse close to vertex, except close to eye; with long, erect dark brown setae interspersed, and a few long, erect white setae interspersed. Area behind lower eye lobes abundantly coarsely punctate; with abundant yellowish-brown pubescence close to eye, glabrous close to prothorax; with long, erect whitish setae interspersed, more abundant toward ventral surface. Genae slightly shorter than lower eye lobe; sparsely, coarsely, shallowly punctate, except smooth apex; with yellowish-white pubescence posteriorly, with long, erect yellowish-white setae interspersed, almost glabrous frontally, except central region with sparse yellowish-white pubescence and long, erect setae of same color interspersed. Antennal tubercles somewhat abundantly, coarsely punctate; with abundant yellowish-white pubescence not obscuring integument frontally, pubescence sparser on remaining surface, with somewhat abundant, long, erect dark-brown setae interspersed. Wide central area of postclypeus somewhat abundantly, coarsely punctate, punctures finer than on frons; with abundant yellowish-white pubescence partially obscuring integument close to frons, pubescence sparser closer to anteclypeus; with long, erect setae interspersed, setae brown basally, gradually yellowish toward apex. Sides of postclypeus with sparse yellowish pubescence superiorly, glabrous inferiorly. Labrum shallowly, coarsely punctate on posterior half, smooth on anterior half; with sparse, decumbent both brownish and yellowish setae and long, dark-brown setae interspersed on posterior 2/3, glabrous on anterior third. Gulamentum smooth, glabrous; intermaxillary process almost glabrous, with a few long, erect yellowish-white setae. Eyes ( Fig. 9 ) coarsely faceted; widest area of upper eye lobes with five rows of ommatidia ( Fig. 11 ); distance between upper eye lobes 0.31 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.67 times distance between outer margins of eyes. Antennae 1.5 times elytral length, reaching elytral apex at middle of antennomere X. Scape gradually widened from base to near apex, then slightly narrowed; coarsely rugose-punctate; with sparse yellowish-white pubescence on basal 3/4, pubescence absent on apical quarter; with somewhat abundant, long, erect dark-brown setae and a few yellowish-brown setae interspersed throughout. Pedicel with sparse yellowish-white pubescence and long, erect dark-brown setae interspersed throughout. Antennomeres III–IV with somewhat sparse white pubescence on light area, pubescence absent on dark apical area, except dense, short, bristly dark-brown setae dorsally; with somewhat abundant, long, erect dark brown setae throughout, and a few long, erect whitish setae interspersed ventrally; antennomere III distinctly longer than prothorax. Antennomeres VX with abundant dark-brown pubescence partially obscuring integument, pubescence bristly dorsally and ventrally; antennomeres V–IX with long, erect dark-brown setae ventrally, distinctly sparse on IX, and a few moderately short, erect dark-brown setae interspersed ventrally; antennomere X with a few moderately long, erect dark brown setae near apex of ventral surface; antennomeres V-X with short, erect yellowish setae interspersed dorsally, and a few moderately long, erect, both yellowish and dark-brown setae on dorsal apex. Antennomere XI with abundant brownish pubescence partially obscuring integument on dark area, and abundant, bristly white pubescence on apical light area; with moderately long, erect white setae interspersed on white pubescent area. Antennal formula based on length of antennomere III: scape = 0.60; pedicel = 0.16; IV = 0.82; V = 0.36; VI = 0.36; VII = 0.34; VIII = 0.28; IX = 0.28; X = 0.20; XI = 0.26.

Thorax. Prothorax slightly wider than long; sides slightly widened centrally, subparallel-sided anteriorly and posteriorly. Pronotum densely, coarsely punctate; with dense longitudinal yellowish-brown pubescent band laterally, from anterior to posterior margin; with somewhat dense yellowish-brown pubescent band centrally, from anterior margin to near posterior margin, surrounding glabrous region about middle; with transverse yellowish-brown pubescent band close to posterior margin, interconnecting the three longitudinal yellowish-brown pubescent bands; with transverse, somewhat dense yellowish-brown pubescent band on anterior third, interconnecting the three longitudinal yellowish-brown pubescent bands; remaining surface with sparse yellowish-brown pubescence, except denser pubescence on widened central area of prothorax; with somewhat abundant dark-brown setae and a few yellowish setae interspersed.

Sides of prothorax abundantly, coarsely punctate; with somewhat abundant yellowish-brown pubescence not obscuring integument; with long, erect yellowish-white setae interspersed. Prosternum somewhat sparsely, coarsely punctate, except anterocentral region partially with fine and shallower punctures; sides with moderately abundant yellowish-brown pubescence; central region with sparse yellowish-white pubescence, pubescence slightly more abundant close to prosternal process, and long, erect setae of same color interspersed. Prosternal process abundantly, shallowly, coarsely punctate, except smooth sides of apex; with somewhat sparse yellowish pubescence and both, long and somewhat short white pubescence interspersed, except on sides of apex; apex of fringe of short yellowish setae; narrowest area 0.28 times procoxal width. Mesoventrite glabrous centrally, except sparse yellowish-white pubescence close to mesoventral process, and somewhat abundant yellowish-white pubescence laterally. Mesanepisternum and mesepimeron with abundant light yellowish-brown pubescence not obscuring integument, except subglabrous area of mesanepisternum close to mesoventrite. Mesoventral process gradually narrowed from base to truncate apex; somewhat sparsely, coarsely punctate; with yellowish-white pubescence not obscuring integument, slightly more abundant from middle, and long, erect white setae interspersed; apex 0.41 times mesocoxal width. Metaventrite somewhat abundantly, coarsely punctate; metanepisternum and sides of metaventrite with dense light yellowish-brown pubescence; remaining surface of metaventrite with somewhat sparse whitish pubescence; metaventrite with long, erect white setae interspersed. Scutellum with dense pale-yellow pubescence. Elytra. Abundantly, coarsely punctate on anterior third, punctures gradually finer and sparser toward apex on remaining surface; with dense, large, irregular yellowish pubescent maculae throughout; area between dense pubescent maculae with sparse yellowish pubescence; with somewhat abundant, long, erect dark-brown setae, more abundant laterally from middle and on apex, a few long, erect yellowish setae interspersed dorsally, and abundant, long, erect yellowish setae close to epipleural margin, especially from middle; apex rounded. Legs. Profemora with abundant yellowish pubescence not obscuring integument, pubescence sparser laterally, denser on sides of ventral surface of protibiae and absent centrally, bristly, somewhat dense and yellower ventrally on meso- and metafemora; with long, erect white setae interspersed on all femora. Tibiae with sparse yellowish-white pubescence, except apical 2/3 of ventral of protibiae with dense, bristly yellowish pubescence, ventral half of meso- and metatibiae with abundant, somewhat long, suberect yellowish setae, and posterior half of dorsal and lateral surfaces of mesotibiae with abundant, both short and moderately long yellowish setae; dorsal and lateral surfaces of all tibiae with long, erect, both dark-brown and yellowish setae. Dorsal surface of tarsomeres with sparse brownish pubescence, and long dark-brown setae interspersed.

Abdomen. Ventrites 1–4 with abundant yellowish-white pubescence not obscuring integument, pubescence denser and yellower on apex; ventrite 5 with abundant yellowish-white pubescence not obscuring integument, pubescence denser on wide and longitudinal region on each side of central region; all ventrites with long, erect, yellowish-white setae interspersed.

Dimensions (mm). Total length, 4.70; prothoracic length, 0.90; anterior prothoracic width, 0.90; posterior prothoracic width, 0.95; maximum prothoracic width, 1.05; humeral width, 1.40; elytral length, 3.30.

Type material. Holotype female from MEXICO, Nayarit: 26–40 km NE jct. Santa Maria de Oro / rd. to El Saladito , 900-1100’, 8.VII.2019, J. Rifkind & E. Martinez leg. ( CASC, formerly LGBC).

Etymology. This species is named for Eric Antonio Martinez, a professional bird guide from Teotitlán, Oaxaca, Mexico, who collected the holotype along with Jacques Rifkind. Mister Martinez has been instrumental in providing logistics for Jacques Rifkind, during their many adventures in Mexico.

Remarks. Eupogonius martinezi sp. nov. differs from E. pulcher sp. nov. ( Figs 12 , 20–23 ) as follows: upper eye lobes ( Fig. 9 ) slender; and the distance between upper eye lobes ( Fig. 9 ) larger than the maximum diameter of the scape. In E. pulcher sp. nov., the upper eye lobes ( Fig. 12 ) are wider, and distance between the upper eye lobes ( Fig. 12 ) is shorter than the maximum diameter of the scape. The new species differs from E. affinis Breuning, 1942 ( Fig. 13 ) by the antennomere III distinctly longer than the prothoracic length in both sexes (shorter than the prothoracic length in E. affinis ); from E. arizonensis Knull, 1954 ( Fig. 14 ) by the sides of the prothorax without spiniform tubercle (with spiniform tubercle in E. arizonensis ); and from E. guerrerensis Wappes & Santos-Silva, 2020 ( Fig. 15 ) ommatidia larger ( Fig. 11 ) (smaller in E. guerrerensis ), and upper eye lobes ( Fig. 11 ) with five rows of ommatidia (seven rows in E. guerrerensis ). See remarks under Eupogonius rifkindi sp. nov.

Figures

FIGURES 7–15. Eupogonius spp. 7–8) E. rifkindi sp. nov., head, dorsal view: 7) Holotype female; 8) Paratype male. 9) E. martinezi sp. nov., holotype female, head, dorsal view. 10) E. rifkindi sp. nov., holotype female, upper eye lobe. 11) E. martinezi sp. nov., holotype female, upper eye lobe. 12) E. pulcher sp. nov., holotype male, head, dorsal view. 13) E. affinis Breuning, 1942, holotype, head, pronotum, and antennomere III. 14) E. arizonensis Knull, 1954, male from Guatemala (Alta Vera Paz, near Agua Blanca), head, pronotum, and basal antennomeres. 15) E. guerrerensis Wappes & Santos-Silva, 2020, female from Mexico (Jalisco, near La Cumbre), head, dorsal view.

FIGURES 16–19. Eupogonius martinezi sp. nov., holotype female. 16) Dorsal habitus; 17) Ventral habitus; 18) Lateral habitus; 19) Head, frontal view.

FIGURES 20–23. Eupogonius pulcher sp. nov., holotype male. 20) Dorsal habitus; 21) Lateral habitus; 22) Ventral habitus; 23) Head, frontal view.