Icimauna aysa Martins and Galileo, 1991

Santos-Silva, Antonio & Botero, Juan Pablo, 2020, A new species of Pteroplatus Buquet, 1840 (Coleoptera: Cerambycidae) and taxonomical notes in Neotropical Cerambycidae, Insecta Mundi 2020 (772), pp. 1-10 : 5-6

Icimauna aysa Martins and Galileo, 1991

( Fig. 10–14 )

Icimauna aysa Martins and Galileo 1991: 823 ; Chemsak et al. 1992: 159 (cat.); Monné 1995: 12 (cat.); Monné and Giesbert 1994: 285 (checklist); Monné 2005b: 477 (cat.); Monné and Hovore 2006: 261 (checklist); Swift et al. 2010: 59 (distr.); Monné et al. 2017: 70 (holotype); Galileo et al. 2017: 71 (key); Monné 2020b: 697 (cat.); Bezark 2020a: 305 (checklist).

Description. Female. Head reddish-brown except triangular dark brown macula on center of vertex, and wide, transverse dark brown band behind eyes; mouthparts reddish-brown, except basal palpomeres brownish with yellowish-brown areas, and last palpomeres dark brown with apex reddish-brown; anteclypeus and mostly of labrum reddish-brown; mandibles mostly dark reddish-brown on basal half, nearly black on apex; antennae black, paler on posterior 3/4 of IV and antennomeres V–XI. Pronotum with wide, longitudinal black band centrally, narrowed posteriorly, reddish-brown on remaining surface. Sides of prothorax mostly black. Prosternum reddish-brown, gradually more yellowish-brown toward apex of prosternal process. Mesoventrite reddish-brown; mesoventral process pale yellow. Mesanepisternum, mesepimeron, metanepisternum, and mostly of metaventrite black; area of metaventrite close to mesocoxal cavities light reddish-brown. Scutellum reddish-brown. Elytra reddish-brown on anterior fifth (this area widened toward sides), with wide black band on anterior 2/5, not reaching epipleural margin (anterior margin of this area oblique), black on about posterior third, reaching epipleural margin, with wide reddish-brown area between the two black areas; punctures brownish on reddish-brown areas. Pro- and mesocoxae, pro- and mesotrochanters orange (more pale yellow depending on light intensity); sides of metacoxae brown, remaining surface and metatrochanters orange (more pale yellow depending on light intensity). Pro- and mesofemora orange (more pale yellow depending on light intensity), with apex black; metafemora orange on basal 2/3 (more pale yellow depending on light intensity), black on distal third. Tibiae and tarsi black. Ventrites mostly black, with apex slightly dark reddish-brown, except orange abdominal process.

Head. Frons finely, sparsely punctate; mostly with dense yellow pubescence obscuring integument, yellowish-brown on central area close to postclypeus, yellowish-white on narrow band close to eyes and along superior area of median groove; with a few long brownish setae close to eyes. Vertex and most of area behind upper eye lobes with dense yellow pubescence (slightly orangish close to dark central macula), except dark brown triangular area with dark brown pubescence, with a few short, decumbent yellowish-brown setae interspersed; with long, erect, sparse yellowish-white setae interspersed. Black band behind eyes with pubescence as on dark triangular area on vertex; remaining surface behind lower eye lobes and genae with dense yellow pubescence, except glabrous apex of genae; with a few long, erect yellowish-white setae interspersed. Antennal tubercles with dense black pubescence. Postclypeus with both, yellowish-brown, whitish and yellow pubescence on wide central area close to frons, glabrous on narrow band close to anteclypeus and laterally; with a few long, erect brownish setae on pubescent area. Anteclypeus with yellowish-brown pubescence close to postclypeus, glabrous on remaining surface. Posterior 2/3 of labrum coplanar with anteclypeus, and anterior third inclined; area close to anteclypeus smooth and glabrous; area between the former and inclined region depressed, finely, abundantly punctate, with both, yellowish-white and yellowish-brown pubescence not obscuring integument, with long, erect, moderately abundant orangish setae; anterior third mostly glabrous. Gulamentum smooth, glabrous. Distance between upper eye lobes 0.36 times length of scape (0.25 times distance between outer margins of eyes); in frontal view, distance between lower eye lobes 0.76 times length of scape (0.53 times distance between outer margins of eyes). Antennae 1.4 times elytral length, slightly surpassing elytral apex. Scape and pedicel with dense black pubescence, bristly, longer, with long, erect black setae interspersed on inner side of ventral surface; antennomere III with short, dense, bristly black pubescence, except very long, dense fringe of black setae on inner side of ventral surface; antennomere IV with bristly black pubescence on basal quarter, except very long, dense fringe of black setae on inner side of ventral surface, yellowish-white pubescence on central area, black pubescence on posterior area, with minute yellowish-white setae interspersed, long, erect, sparse black setae on inner side of ventral surface of posterior 3/4, and one long seta on apex of dorsal surface; antennomere V with yellowishwhite pubescence on inner side of basal half, remaining surface with black pubescence, with minute yellowish-white setae interspersed, long, erect, sparse black setae on inner side of ventral surface, and one long seta on apex of dorsal surface; remaining antennomeres with black pubescence, with minute yellowish-white setae interspersed; antennomeres VI–VII with a few long, erect setae ventrally. Antennal formula (ratio) based on length of antennomere III: scape = 0.47; pedicel = 0.08; IV = 0.30; V = 0.20; VI = 0.19; VII = 0.18; VIII = 0.17; IX = 0.16; X = 0.14; XI = 0.18.

Thorax. Sides of prothorax sinuous. Pronotum distinctly sloped in posterior quarter; with black pubescence partially obscuring integument on black central band, with minute yellowish-white setae interspersed, dense yellow pubescence on reddish-brown area; with long, erect, sparse yellowish setae interspersed throughout. Sides of prothorax with black pubescence nearly obscuring integument, with short yellowish setae interspersed (more so basally), except hypomeron projection with yellow pubescence. Prosternum moderately coarsely, sparsely punctate; with yellowish pubescence not obscuring integument. Narrowest area of prosternal process 0.15 times width of procoxal cavity. Mesoventrite with yellowish-white pubescence not obscuring integument laterally and close to prothorax, nearly glabrous close to procoxal cavities and mesoventral process. Posterior area of mesoventral process tab-shaped laterally. Mesanepisternum, mesepimeron, metanepisternum, and sides of metaventrite with dense black pubescence (mesanepisternum with yellowish pubescence close to prothorax); remaining surface of metaventrite with yellowish-white pubescence partially obscuring integument (yellower on metaventral process and close to mesocoxae). Scutellum with yellow pubescence not obscuring integument. Elytra. Coarsely, abundantly punctate on basal half, punctures indistinct on posterior half; reddish-brown areas of elytra with dense yellow pubescence, except sparser pubescence close to black areas and anteriorly on each side of suture; black area with dark pubescence not obscuring integument (bristly, denser on sides of posterior area); with long, erect, moderately sparse setae throughout (denser on sides of posterior black area), dark on black areas, yellowish on reddish-brown areas; posterior margin slightly concave, with outer and sutural angles slightly, triangularly projected. Legs. Femora with dense yellowishwhite pubescence on orange area, dark on black area; with long, erect yellowish setae, distinctly denser ventrally. Tibiae with dense dark pubescence, more brownish ventrally on protibiae and apex of ventral surface of meso- and metatibiae. Inner tooth of tarsal claws ( Fig. 14 ) slightly shorter than outer tooth.

Abdomen. Ventrites I–IV mostly with yellowish-white pubescence partially obscuring integument, more yellowish-brown laterally, and yellower on posterocentral area; ventrite V with dark pubescence partially obscuring integument; ventrites I–IV with long, erect, sparse yellowish setae; ventrite V with long, erect dark setae; apex of ventrite V truncate.

Dimensions (mm), female. Total length, 11.75; prothoracic length, 2.05; anterior prothoracic width, 2.25; posterior prothoracic width, 2.30; maximum prothoracic width, 2.45; humeral width, 3.05; elytral length, 8.50.

Material examined. COSTA RICA, no further details, holotype male, IX.1928, F. Nevermann col. ( MZSP). PANAMA, BOCAS DEL TORO: Bastimentos Island, near Red Frog Beach, 9.3471ºN / 82.1788ºW, 1 female, 4. VI.2019, A. Kozlov and Y. Kovaleva col. ( MZSP).

Remarks. Icimauna aysa was described based on a single male from Costa Rica. Later, Monné and Hovore (2002) recorded the species from Panama. This later record was reproduced by Swift et al. (2010) and Tavakilian and Chevillotte (2019) but is not present in Monné (2020b).

The female is slightly stouter than male (see photograph of the holotype in Bezark 2020b), the antennae are slightly shorter, and the fringe of pubescence on antennomere IV is present only on the basal quarter (surpassing basal half in male holotype).

Figures

Figures 10–14. Icimauna aysa, female. 10) Dorsal habitus. 11) Ventral habitus. 12) Lateral habitus. 13) Head, frontal view. 14) Protarsal claws.