Eupogonius flavovittatus Breuning, 1942

Lingafelter, Steven W., Morris Ii, Roy F., Skillman Jr, Frederick W. & Santos-Silva, Antonio, 2021, A new genus Cicatrisphaerion, new species, new records, and redescriptions of Neotropical Cerambycidae (Coleoptera), Insecta Mundi 2021 (865), pp. 1-20 : 13-15

Eupogonius flavovittatus Breuning, 1942

( Fig. 22–25 )

Eupogonius flavovittatus Breuning 1942: 161 ; 1963: 505 (cat.); 1974: 25 (rev.); Chemsak et al. 1992: 119 (cat.); Monné 1994: 30 (cat.); Monné and Giesbert 1994: 221 (checklist); Monné 2005b: 409 (cat.); Hovore 2006: 376 (distr.); Monné 2021: 609 (cat.).

Description. Female. Integument mostly dark brown; frons dark reddish brown; ventral mouthparts reddish brown except for apex of palpomeres yellowish brown; antennomere IV orangish basally, gradually reddish brown toward apex of anterior third, dark brown on remaining surface; antennomeres V–VII orangish basally; central area of gulamentum reddish brown; pronotum with three longitudinal dark reddish brown bands, one on each side from base to apex, the third medial, from base to posterior fifth; central area of prosternum and prosternal process reddish brown; elytra with orangish longitudinal band from humerus to slightly after apex of basal third (this band gradually narrowed toward its apex); ventral surface of pro- and mesofemora orangish; central area of abdominal ventrites I–IV slightly dark reddish brown.

Head. Frons finely, rather densely punctate; with yellow pubescence partially obscuring integument, sparser toward clypeus, except yellowish white pubescence close to eyes; with long, erect, abundant yellow setae throughout (setae more brownish laterally toward antennal tubercles). Vertex and area behind upper eye lobes with sculpturing as on frons; area between antennal tubercles with yellow pubescence obscuring integument, and long, erect brownish setae interspersed laterally; remaining central area of vertex with wide, dense yellow pubescent band, slightly widened toward prothoracic margin; sides of vertex and area behind upper eye lobes with dark brown pubescence not obscuring integument, and long, erect yellowish brown setae interspersed (erect setae absent close to prothorax). Area behind lower eye lobes tumid close to eye, finely, somewhat densely punctate, except smooth area close to prothoracic margin in inferior region; tumid area with yellowish pubescence partially obscuring integument, and long, erect, abundant yellowish white setae interspersed; area close to prothorax with dark brown pubescence superiorly, glabrous toward ventral surface. Genae about 0.5 times length of lower eye lobes; finely, sparsely punctate except smooth apex; with abundant yellowish white pubescence frontally, pubescence distinctly sparser toward ventral surface, except glabrous smooth area, and long, erect yellowish white setae interspersed. Gulamentum smooth, glabrous, except narrow anterior area with yellowish pubescence not obscuring integument, and a few long, erect yellowish white setae interspersed. Distance between upper eye lobes (only one male measured) 0.28 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.63 times distance between outer margins of eyes. Antennae 1.5 times elytral length, reaching elytral apex at posterior third of antennomere X. Scape, pedicel, and antennomere III with long, erect, abundant dark setae throughout (setae longer ventrally), except a few long, erect whitish setae ventrally at apex of scape, pedicel, and base of antennomere III; antennomere IV with long, erect setae throughout, setae yellowish white in basal quarter, brown on remaining surface (setae longer ventrally); antennomeres V–IX with long, erect, sparse dark setae ventrally, and moderately short, erect brown setae at dorsal apex; antennomeres III–IV gradually widened from base to apex. Antennal formula based on antennomere III (only one male measured): scape = 0.58; pedicel = 0.17; IV = 1.05; V = 0.53; VI = 0.45; VII = 0.41; VIII = 0.39; IX = 0.36; X = 0.30; XI = 0.39.

Thorax. Prothorax wider than long; sides with blunt tubercle about middle. Pronotum coarsely, abundantly punctate; longitudinal dark reddish brown bands with dense yellow pubescence; remaining surface with dark brown pubescence partially obscuring integument; with long, erect, sparse yellowish white setae interspersed. Sides of prothorax coarsely, somewhat densely punctate; with abundant dark yellowish brown pubescence not obscuring integument, except area close to pronotum with yellow pubescence (continuation of pubescence on sides of pronotum), and long, erect yellowish setae interspersed. Prosternum coarsely, sparsely punctate; with abundant whitish pubescence not obscuring integument, distinctly sparser in anterior quarter, and long, erect setae of same color interspersed. Prosternal process with abundant whitish pubescence, slightly denser than in posterior area, and long, erect setae of same color interspersed; narrowest area 0.4 times procoxal cavity. Wide central area of meso- and metathorax with abundant whitish pubescence not obscuring integument, and long, erect setae of same color interspersed on metaventrite; sides with abundant yellowish brown pubescence not obscuring integument. Scutellum with dark yellowish brown pubescence not obscuring integument, and long, erect setae of same color interspersed. Elytra. Coarsely, somewhat densely punctate, punctures slightly finer and sparser toward apex; orangish area with dense yellow pubescence; remaining surface with dark brown pubescence partially obscuring integument; with long, erect, somewhat abundant brown setae in dark area, and long, erect yellow setae in orangish area. Legs. Femora with whitish pubescence not obscuring integument, longer, bristly, more abundant ventrally, and long, erect setae of same color interspersed (erect setae more abundant ventrally at base). Protibiae with yellowish pubescence dorsally and laterally not obscuring integument, and long, erect, brownish and yellowish setae interspersed; ventral surface with abundant bristly whitish pubescence; apex of fringe of thick yellowish brown setae. Mesotibiae with sparse yellowish pubescence in basal third, dense, bristly yellowish white in posterior 2/3; with long, erect yellowish brown setae interspersed (longer, more abundant dorsally); apex of fringe of thick yellowish brown setae. Metatibiae with yellowish brown pubescence not obscuring integument, and long, erect, both brownish and yellowish white setae interspersed (erect setae longer, more abundant dorsally); apex of fringe of thick yellowish brown setae. Metatarsomere I about as long as II–III together.

Abdomen. Ventrites with abundant whitish pubescence not obscuring integument, and long, erect setae of same color interspersed. Posterior area of ventrite V slightly depressed centrally, with apical margin slightly concave centrally.

Dimensions (mm) (one female). Total length 6.15; prothoracic length 1.05; anterior prothoracic width 1.10; posterior prothoracic width 1.25; maximum prothoracic width 1.35; humeral width 1.75; elytral length 4.60.

Material examined. GUATEMALA, QUETZALTENANGO (new department record): 3 km S Santa Maria, 5000′, 1 female, 18.V.1966, J.M. Campbell leg. ( FSCA).

Remarks. The only previously known specimen was the holotype collected in “Capetillo.” Tavakilian and Chevillotte (2020) and Monné (2021) reported this place in the Guatemalan department of Sacatepéquez. Although Breuning (1942) only reported the country and this place, we believe that “Capetillo” is “Capetillo farm” in Sacatepéquez. Breuning (1942) did not specify the sex of the holotype (see photographs in Bezark 2021). However, based on the length of the antennae, it appears to be a male. Breuning (1942) compared E. flavovittatus with E. vestitus (Say, 1827) (currently equal to E. pauper LeConte, 1852 ), a species noticeably different, and reported (translated): “but the antennae a little longer than the body, the lower eye lobes twice as long as the genae, pronotum without lateral spine.” These differences are, at most, partially true. The antennae in males of E. pauper are about as long as in E. flavovittatus and are longer in females; the lateral tubercles of the prothorax in E. pauper are variable, and may be acute or somewhat blunt at the apex; and the genal length is very similar in both species.

Comparing the female examined with photographs of the holotype, the only difference we could see is the yellow pubescent band in the center of the pronotum, which is distinctly widened anteriorly in the holotype. However, we think this is only a specific variation.

Figures

Figures 22–25. Eupogonius flavovittatus Breuning, 1942. 22) Dorsal habitus. 23) Ventral habitus. 24) Lateral habitus. 25) Head, frontal view.