Adetaptera setigera, Bezark & Santos-Silva, 2022

Bezark, Larry G. & Santos-Silva, Antonio, 2022, New genus and new species in American Apomecynini (Coleoptera, Cerambycidae, Lamiinae), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 62, pp. 1-9 : 1-3

Adetaptera setigera sp. nov.

( Figs. 1 , 4 )

Description

Holotype female: Integument mostly dark brown; mandibles black; ventral mouthparts reddish brown; anteclypeus reddish brown close to postclypeus, brownish close to labrum; labrum reddish brown on anterior half; antennae darkened from middle of antennomere IV.

Head: Frons coarsely, abundantly punctate; with abundant, thick ochraceous pubescence obscuring integument, including part of punctures, and abundant, thick, suberect whitish and ochraceous setae close to antennal tubercles. Antennal tubercles with pubescence as on frons and thick, suberect, whitish and ochraceous setae interspersed, except glabrous apex. Vertex coarsely punctate; with pubescence as on frons, but not obscuring punctures; with sparse, suberect, thick, whitish and ochraceous setae interspersed, absent toward prothorax. Area behind eyes and genae coarsely punctate, punctures abundant behind eyes, sparse on genae; with abundant ochraceous pubescence obscuring integument, except glabrous apex of genae, and short, thick whitish setae interspersed on area behind eyes and genae, and longer, thick, yellowish-white and ochraceous setae interspersed on apical pubescent area of genae. Wide central area of postclypeus with pubescence as on frons, but slightly bristly, and moderately long, slightly thick pale setae directed forward close to anteclypeus. Sides of postclypeus glabrous. Labrum almost glabrous close to anteclypeus, moderately long, abundant pale setae directed forward from this point toward anterior half, with dense, short yellowish-brown setae on anterior third. Basal ⅔ of outer surface of mandibles finely punctate; with longitudinal, deep sulcus centrally; with short, abundant, thick ochraceous pubescence inside sulcus, glabrous on remaining surface; anterior third smooth, glabrous. Eyes very small, divided; distance between upper eye lobes 0.59 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.75 times distance between outer margins of eyes. Antennae 0.9 times elytral length, almost reaching middle of elytra. Scape just reaching anterior lateral margin of prothorax; with abundant, thick ochraceous pubescence and similar whitish setae interspersed, except glabrous dorsal apex. Pedicel, antennomere III and anterior half of IV with yellowish-white pubescence not obscuring integument, and short, thick, whitish and ochraceous setae interspersed. Posterior half of antennomere IV and antennomeres V-XI with dark yellowish-brown pubescence partially obscuring integument,gradually more brownish toward XI;apex of antennomeres IV-VII with fringe of yellowish-brown pubescence.Antennal formula based on length of antennomere III: scape = 0.64;pedicel = 0.27;IV = 0.57; V = 0.31; VI = 0.24;VII = 0.24;VIII = 0.24;IX = 0.24;X = 0.21;XI = 0.27.

Thorax: Prothorax longer than wide; sides slightly round- ed, gradually narrowed from anterolateral angles to posterolateral angles, more distinctly narrowed on posteri- or quarter. Pronotum coarsely, densely punctate; with abundant, thick ochraceous pubescence, slightly sparser on center of posterior ⅔, except slightly distinct Y-shaped pubescent band on center of posterior half; with short, decumbent, thick, sparse whitish setae interspersed. Sides of prothorax coarsely, abundantly punctate, with dense ochraceous pubescence and thick white decumbent setae interspersed. Prosternum with abundant ochraceous pubescence obscuring integument, and short, decumbent whitish setae interspersed laterally. Prosternal process with abundant ochraceous pubescence and short, decumbent whitish setae interspersed; narrowest area 0.4 times procoxal width. Ventral surface of mesothorax, metanepisternum, and sides of metaventrite with dense ochraceous pubescence obscuring integument, and short, decumbent, thick white setae interspersed; central area of metaventrite with abundant, thick whitish pubescence not obscuring integument, and decumbent ochraceous pubescence interspersed; mesoventral process gradually narrowed from base to near apex, then slightly widened, with distal margin centrally emarginate. Scutellum with dense, thick pale yellow pubescence obscuring integument, and a few short, decumbent, thick whitish setae interspersed. Elytra: In lateral view,dorsal surface flattened on basal quarter, distinctly convex on remaining surface; sides slightly, gradually widened on basal third,more distinctly widened from this point to posterior quarter; apex rounded; coarsely, abundantly punctate, punctures coarser than on pronotum; with abundant ochraceous pubescence obscuring integument, except slightly oblique band with dark yellowish-brown pubescence on basal quarter, two oblique, wide bands with dark yellowish-brown pubescence not obscuring integument on posterior half, not reaching suture and epipleural margin, almost fused laterally, two irregular dark yellowish-brown pubescent maculae on near apex; with oblique, slightly distinct, whitish pubescent band near middle; with short, thick, suberect whitish seta inside many punctures, except those on area with dark yellowish-brown pubescence, where the setae are slender and dark yellowish brown. Legs: Femora with thick, whitish and ochraceous pubescence obscuring integument. Tibiae with thick, whitish and ochraceous pubescence partially obscuring integument dorsally and laterally, except sides of posterior quarter of meso- and metatibiae with slender, longer brownish pubescence; ventral surface of protibiae somewhat depressed on posterior ⅔, with whitish and ochraceous pubescence not obscuring integument, distinctly longer and more slender than on dorsal surface on basal third, blackish almost indistinct on posterior ⅔; basal ⅔ of ventral surface of meso- and metatibiae with whitish and ochraceous pubescence not obscuring integument, distinctly longer and more slender than on dorsal surface, brownish on posterior third; posterior quarter of dorsal surface of mesotibiae with row of short, thick, erect black setae; dorsal apex of meso- and metatibiae with fringe of thick, short black setae. Metatarsomere I about as long as II.

Abdomen: Ventrites 1-3 with abundant, thick ochraceous pubescence partially obscuring integument, with short, decumbent, thick whitish setae interspersed,whitish setae distinctly more abundant on center of ventrites 2-3, and fringe of ochraceous pubescence apically. Sides of ventrite 4 with abundant, thick ochraceous pubescence partially obscuring integument, with short, decumbent, thick whitish setae interspersed, pubescence longer, distinctly sparser and longer on central area, and fringe of ochraceous pubescence apically. Sides of ventrite 5 with abundant ochraceous pubescence obscuring integument, and whitish setae interspersed; central area of ventrite 5 distinctly depressed, densely microsculptured, glabrous, with a few long, yellowish-brown setae interspersed, and sides with fringe of long, erect, dense fringe of brown setae.

Dimensions (mm): Total length, 6.85; prothoracic length, 2.10; anterior prothoracic width, 1.60; posterior prothoracic width, 1.55; maximum prothoracic width, 1.90; humeral width, 1.85; elytral length, 4.50.

Type material: Holotype ♀ from MEXICO, Oaxaca: Punta del Vigia (Puerto Escondido), 22-28.VI.2015, J. Rifkind leg. ( CASC, formerly LGBC). The habitat ( Fig. 4 ) of the collected specimen is coastal thorn forest, with mostly low, spiny vegetation just inland from the beach.

Etymology: The specific epithet “ setigera ,” is Latin and refers to the numerous elytral punctures equipped with short setae.

Remarks: Adetaptera setigera sp. nov. is similar to A. jejetama Gutiérrez & Santos-Silva, 2022 (see photographs of the holotype on Bezark, 2022a), but differs as follows: the lower eye lobes are narrower, with 4-5 rows of ommatidia; the elytral punctures are distinctly finer (no puncture wider than half the maximum diameter of the scape); and several elytral punctures have short, thick white setae. In A. jejetama , the lower eye lobes are wid- er, with 8-9 rows of ommatidia, the elytral punctures are strongly coarser, with some of them wider than half the maximum diameter of the scape, especially those just beyond the middle, and only a few punctures have short, thick white setae (none beyond the middle).

Figures

Figure 1. Adetaptera setigerasp.nov.,holotype female:(A) Dorsal habitus;(B)Ventralhabitus;(C) Lateral habitus;(D) Head,frontalview;(E) Abdominalventrite 5.

Figure 4. Coastalthorn forest,Oaxaca,Mexico;habitat of Adetaptera setigera. (photograph by Jacques Rifkind).