Psapharoctes svachai, Vlasak & Santos-Silva, 2025

Psapharoctes svachai sp. nov.

( Figs 69–72 View FIGURES 69–75 )

Description. Female holotype. Integument mostly dark brown; ventral mouthparts orangish brown centrally, except dark-brown mentum, and palpi dark brown with yellowish-brown apex; anteclypeus yellowish-brown on margins; labrum mostly brown on anterior third; pedicel brown with irregular dark-brown area basally; antennomere III brown, except dark-brown apex; antennomeres IV–XI orangish brown, more reddish brown on IV, except dark-brown apex, dark area gradually wider toward XI. Abdominal ventrites I–III with irregular dark reddish-brown areas.

Head. Frons sparsely, coarsely punctate; with dense yellowish-white pubescence, yellower on some areas, except glabrous median groove, transverse light-brown pubescent band on each side of median groove between eyes, and irregular light-brown pubescent macula on each side close to antennal tubercles; with a few long, erect dark-brown setae close to eyes. Antennal tubercles with dense, both yellowish-white and brownish pubescence. Vertex sparsely, coarsely punctate; area between antennal tubercles with dense yellowish-white pubescence centrally, except glabrous median groove, and dense yellowish-brown pubescence laterally; remaining surface with dense yellowish-white pubescence, except glabrous median groove and triangular light-brown pubescent macula on each side close to prothorax. Area behind upper eye lobes with dense light yellowish-brown pubescence. Area behind lower eye lobes with dense dull yellowish-brown pubescence close to eye, this area widened inferiorly, glabrous on remaining surface. Genae 0.43 times length of lower eye lobe in frontal view; finely, transversely striate-punctate with sparse yellowish-white pubescence frontally, denser laterally. Wide central area of postclypeus with abundant yellowish-white pubescence partially obscuring integument, except glabrous central area and glabrous or subglabrous area on each side of middle; with long, erect setae interspersed, setae dark brown basally, gradually yellowish brown toward their apices. Sides of postclypeus mostly glabrous. Labrum with abundant yellowish-white pubescence on posterior 2/3, with long, erect dark-brown setae interspersed, glabrous on anterior third, except dense fringe of yellowish-brown setae on anterior margin. Gulamentum glabrous, except light yellowish-brown pubescence not obscuring integument on intermaxillary process. Distance between upper eye lobes 0.28 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.54 times distance between outer margins of eyes. Antennae 1.35 times elytral length, slightly surpassing elytral apex. Scape with dense yellowish-white pubescence basally, abundant brown pubescence with yellowish-white pubescence interspersed on remaining basal third, and dense yellowish-white pubescence on remaining surface, except large, irregular brown pubescent macula dorsally on apical third, following toward lateral outer surface, and somewhat small, irregular brown macula on apical third of inner surface. Pedicel with abundant yellowish-white pubescence and irregular brown pubescent areas interspersed. Basal 4/5 of antennomeres III–IV with dense yellowish-white pubescence, yellower dorsally on IV from basal sixth, except base partially with brown pubescence, and large dorsal area with brown pubescence and yellowish-white pubescence interspersed; apical fifth with abundant dark-brown pubescence; ventral surface of III with sparse, short, erect dark-brown setae interspersed; ventral surface of IV with a few short, erect yellowish-brown setae apically. Antennomeres V–VII with dense yellowish pubescence dorsally on light integumental area, except glabrous base, and abundant yellowish-white pubescence on remaining light integumental area; with abundant dark-brown pubescence on dark integumental area. Antennomeres VIII–XI with abundant yellowish-white pubescence on light integumental area, and abundant, slightly conspicuous dark-brown pubescence on dark integumental area. Antennal formula based on length of antennomere III: scape = 0.90; pedicel = 0.34; IV = 0.88; V = 0.56; VI = 0.46; VII = 0.44; VIII = 0.40; IX = 0.36; X = 0.30; XI = 0.36.

Thorax. Prothorax wider than long; anterior transverse sulcus distinct, absent on wide central area of pronotum; posterior transverse sulcus distinct; lateral tubercles large, conical, located about middle. Pronotum with large, elevated tubercle on each side, tubercles conical anteriorly, arched, distinctly less elevated posteriorly; with moderately large, subtriangular gibbosity centrally on posterior half, following toward anterior margin as a distinctly elevated longitudinal carina; with transverse row of coarse punctures near anterior and posterior margins, and between lateral tubercles and central carina and gibbosity, and sparse coarse punctures close to lateral tubercles of prothorax; with inverted Y-shaped white pubescent band centrally, from anterior margin to middle, pubescence sparser close to its bifurcation; remaining wide central area and area close to posterior margin with dense dark yellowish-brown pubescence, with sparse whitish pubescence interposed close to inner surface of lateral tubercles, absent on central gibbosity; with arched, both yellowish and whitish pubescent band on each side of posterior region of central gibbosity; sides with dense yellowish pubescence, except whitish pubescence on part of lateral tubercles of prothorax; with a few long, erect dark-brown setae close to lateral tubercles of prothorax; transverse sulci glabrous. Sides of prothorax sparsely, coarsely punctate; with dense yellowish-white pubescence centrally, and dense yellowish-brown pubescence anteriorly and posteriorly, except glabrous anterior and posterior sulci. Prosternum with abundant yellowish-brown pubescence laterally and abundant whitish pubescence centrally, except glabrous anterior sulcus. Prosternal process with abundant whitish pubescence, except abundant yellowish-brown pubescence on apex; narrowest area 0.42 times procoxal width. Mesoventrite with sparse yellowish-brown pubescence anteriorly, except abundant yellowish-brown pubescence close to procoxal cavities and mesoventral process; sides with abundant yellowish-brown pubescence superiorly, glabrous inferiorly. Mesanepisterna, mesepimera, metanepisterna and sides of metaventrite with dense yellowish-brown pubescence, except narrow glabrous area on mesanepisterna close to mesepimeron; remaining surface of metaventrite with abundant whitish pubescence not obscuring integument, except glabrous metathoracic discrimen. Mesoventral process almost parallel-sided, except distinctly widened apex; with dense yellowish-white pubescence, except glabrous sides of apex; narrowest area 0.61 times mesocoxal width; apex 0.84 times mesocoxal width. Scutellum with abundant light yellowish-brown pubescence anterocentrally, dense yellowish pubescence centrally on posterior 2/3, and abundant dark-brown pubescence on remaining surface. Elytra. Sides slightly convergent from base to posterior sixth, then distinctly convergent toward apex; apex transversely concave, with outer angle triangularly projected and sutural angle slightly projected; sparsely, coarsely punctate; with three distinct areas with dense white pubescence, one dorsally on anterior quarter, one dorsally from anterior quarter to just after middle, laterally fused with the former by narrow white longitudinal pubescent band, one on posterior third, from near suture to epipleural margin, with narrow, oblique projection toward apex dorsally, with wide, irregular projection dorsally toward central band, and on epipleura toward middle of elytron, and wide, oblique band from epipleural margin to near dorsal surface on anterior third; remaining surface with dense yellowish-brown pubescence, except mostly dark-brown pubescence on circum-scutellar region, sutural region on anterior third, arched band dorsally close to posterior margin of anterior white band, and slightly oblique brown band close to posterior margin of central white band. Legs. Coxae with abundant, both yellowish and whitish pubescence. Trochanters with abundant whitish pubescence. Femoral peduncles and base of femoral clubs ventrally and laterally with abundant whitish pubescence; remaining surface of femoral clubs with abundant yellowish pubescence, except transverse brownish pubescent macula about middle, located dorsally and on superior region of sides, and brownish pubescent macula on inferior region of lateral surfaces. Protibiae with dense white pubescence, except dark-brown pubescent arcs on basal and apical thirds, located dorsally and laterally, and dense, bristly dark-brown pubescence ventrally on apical half. Meso- and metatibiae with dense white pubescence, except dark-brown pubescent arcs on basal and apical thirds, located dorsally and laterally, and dense, bristly yellowish-brown pubescence on apical third of ventral surface. Dorsal surface of tarsomeres I and apical half of V with dense whitish pubescence; dorsal surface of protarsomere II with sparse dark-brown pubescence, except irregular whitish pubescent macula on apical half of outer side; meso- and metatarsomeres II with dense whitish pubescence; tarsomeres III–IV and basal half of V with sparse dark-brown pubescence; I–IV and V with sparse, moderately short dark-brown setae laterally; metatarsomere I about as long as II–III together.

Abdomen. Ventrites 1–4 with dense yellowish-brown pubescence laterally, except glabrous superior half close to lateral margin, and abundant whitish pubescence not obscuring integument centrally, except glabrous margins of intercoxal process, central apex of ventrite 4; ventrites 2–3 with transverse carina anterocentrally. Ventrite 5 with abundant whitish pubescence, except glabrous central sulcus on anterior half, and glabrous superior half close to lateral margins, with long, erect dark-brown setae near apex; apex rounded.

Dimensions (mm). Total length, 14.00; prothoracic length, 2.40; anterior prothoracic width, 2.95; posterior prothoracic width, 3.40; maximum prothoracic width, 4.40; humeral width, 5.15; elytral length, 9.55.

Type specimen. Female holotype from ECUADOR, Zamora-Chinchipe: Zamora , 1000 m, 7–8 Aug 2023, J. Vlasak leg. ( MZSP, formerly JVCO) .

Etymology. We are pleased to name this species for Petr Svacha, a friend and a renowned Czech entomologist in the field of larval morphology and phylogenesis of Cerambycidae .

Remarks. Psapharoctes svachai sp. nov. can be distinguished from the other species of the genus using the following key:

1. Elytral apex uniformly rounded. French Guiana ( Figs 73–74 View FIGURES 69–75 ).................... P. hermieri Tavakilian & Néouze, 2007 View in CoL

- Elytral apex with outer angle spiniform ( Figs 69, 75 View FIGURES 69–75 )......................................................... 2

2(1). Antennae distinctly surpassing the elytral apex in females; pronotum with longitudinal dark pubescent band on each side; transverse white pubescent area on the posterior third of elytra about as wide as width of elytral apex; metatarsomere I slender, longer than II–III together. French Guiana ( Fig. 75 View FIGURES 69–75 ).......................... P. fanchonae Tavakilian & Néouze, 2007 View in CoL

- Antennae slightly surpassing the elytral apex in females; pronotum without longitudinal dark pubescent band on each side; transverse white pubescent area on the posterior third of elytra much wider than width of elytral apex; metatarsomere I stouter, as long as II–III together. Ecuador ( Figs. 69–72 View FIGURES 69–75 )............................................... P. svachai sp. nov.

Additionally, females of P. svachai differ from those of P. hermieri View in CoL by the lower eye lobes ( Fig. 72 View FIGURES 69–75 ) distinctly longer than genae (slightly longer ( Fig. 73 View FIGURES 69–75 ) in P. hermieri View in CoL ).

APOMECYNINI Thomson, 1860