Microibidion fiuzai, Santos-Silva & Botero & Nascimento & Martins, 2020

Santos-Silva, Antonio, Botero, Juan Pablo, Nascimento, Francisco Eriberto de Lima & Martins, David dos Santos, 2020, New species, new records, and taxonomical notes in Cerambycidae (Coleoptera) from the state of Espírito Santo (Brazil), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60, pp. 1-22 : 13-15

Microibidion fiuzai sp. nov. ( Figs. 38-46 )

Description: Holotype female ( Figs. 38-42 ): Coloration: Integument mostly reddish brown, darker on prothorax (some areas more brown); palpi yellowish-brown; antennomeres III-XI orangish brown. Elytra with large subelliptical pale yellow macula on basal half, and nearly entirely light reddish brown on posterior quarter. Femora orangish-brown on peduncle, black on club; tibiae and tarsi orangish brown.

Head: Frons abundantly micropunctate close to postclypeus, coarsely, confluently punctate on remaining surface; glabrous. Vertex glabrous; area between antennal tubercles with sculpturing as on posterior area of frons; area between upper eye lobes somewhat coarsely, shallowly, sparsely punctate; remaining surface minutely, densely striate. Area behind upper eye lobes densely micropunctate; glabrous, with a few long, erect brownish setae close to eye; area behind lower eye lobes tumid, smooth close to eye, densely micropunctate on remaining surface; glabrous. Genae very finely, abundantly punctate, except for smooth apex; glabrous. Antennal tubercles finely, sparsely punctate (punctures denser frontally). Postclypeus with one long, erect brownish seta on each side. Labrum with somewhat long, erect brownish setae. Gulamentum smooth, glabrous posteriorly, striate, with long, sparse, erect brownish setae anteriorly. Distance between upper eye lobes 0.68 times length of scape (0.42 times distance between outer margins of eyes); in frontal view, distance between lower eye lobes 0.68 times length of scape (0.42 times distance be- tween outer margins of eyes). Antennae 1.8 times elytral length, reaching elytral apex at posterior sixth of antennomere IX. Scape with decumbent, short and sparse yellowish setae; pedicel with decumbent, short and sparse yellowish pubescence, with long, erect yellowish-brown setae ventrally; antennomeres with yellowish pubescence not obscuring integument, denser toward XI; antennomeres III-VI with long, erect yellowish-brown setae ventrally. Antennal formula (ratio) based on length of antennomere III: scape = 0.68; pedicel = 0.18; IV = 0.68; V = 0.68;VI = 0.68;VII = 0.67;VIII = 0.65;IX = 0.63; X = 0.56; XI = 0.77.

Thorax: Prothorax distinctly longer than wide; sides sinuous (anterior and posterior constrictions well marked). Pronotum finely, sparsely punctate; posterior area somewhat shagreened; with longitudinal, slightly conspicuous yellowish-white pubescent band centrally, from base to apex. Sides of prothorax nearly glabrous; finely sparsely punctate; posterior region somewhat shagreened. Prosternum finely, sparsely punctate on sides of posterior ⅔, very finely transversely striate centrally, somewhat shagreened laterally close to procoxal cavities; glabrous. Central area of prosternal process notably narrow. Ventral surface of mesothorax mostly somewhat shagreened; mesanepisternum and mesepimeron with yellowish-white pubescence not obscuring integument. Apex of mesoventral process widened posteriorly (flap-shaped), with distal margin distinctly concave. Metanepisternum nearly glabrous anteriorly, with dense yellowish-white pubescence posteriorly. Metaventrite with very short and sparse yellowish setae. Scutellum with abundant yellowish-white pubescence not obscuring integument. Elytra: Coarsely, somewhat abundantly punctate on basal half, punctures gradually finer, sparser toward apex; apex bispinose (outer spine longer); with long, erect, sparse yellowish setae. Legs: Femoral club somewhat shagreened; profemora nearly glabrous; meso- and metafemora with short, sparse, decumbent yellowish setae, with long, erect, sparse yellowish setae interspersed. Tibiae with sparse, short, nearly decumbent yellowish setae dorsally and laterally, with long, erect setae of same color near apex, and distinctly denser pubescence ventrally on protibiae, bristly, longer ventrally on posterior third of meso- and metatibiae.

Abdomen: Ventrites with short, very sparse yellowish setae. Apex of ventrite V rounded.

Dimensions in mm (females, holotype-paratype): Total length, 5.95-5.30; prothoracic length, 1.30-1.10; anterior prothoracic width, 0.90-0.75; posterior prothoracic width, 0.80-0.70; humeral width, 1.20-1.05; elytral length, 3.90-3.45.

Type material: Holotype female from BRAZIL, Espírito Santo: Sooretama, Fazenda Cupido e Refúgio , 19°03′44″S, 39°58′36″W, 1 ♂, 16.XI.2015, M. T. Tavares & S. Freitas col. ( MZSP,formerly UFES) . Paratype female, same data as holotype except UFES # 159511 ( UFES).

Etymology: The new species is dedicated to Paulo Sérgio Fiuza Ferreira, former Professor at the Universidade Federal de Viçosa (Minas Gerais, Brazil), expert on taxonomy of Heteroptera, especially Miridae , who introduced the fourth author to the study of insects.

Remarks: Microibidion fiuzai sp. nov. is similar to M. exiguum Martins, 1962 (see photograph of the holotype at Bezark, 2020), but differs by the upper eye lobes with three rows of ommatidia (two in M. exiguum ), setae on ventral surface of the antennomeres distinctly short (longer in M. exiguum ), pronotum without long and erect setae (present in M. exiguum ), elytral apex bispinose (with spine only at outer angle in M. exiguum ).

Figures

Figures 38-46. Microibidion fiuzai sp. nov. (38-42) Holotype female: (38) dorsal habitus; (39) ventral habitus; (40) prosternal process and mesoventral process; (41) head,frontal view;(42)lateral view.(43-46) Paratype female:(43) dorsal habitus;(44) head,frontal view;(45) lateral view;(46) ventral habitus.