Anelaphus zacapensis, Santos-Silva, 2021

Santos-Silva, Antonio, 2021, Description of four new species of Anelaphus Linsley (Coleoptera, Cerambycidae Cerambycinae, Elaphidiini), correction of the spelling of species-group names and description of the female of Anelaphus pilosus Chemsak and Noguera, Zootaxa 5048 (3), pp. 371-390 : 380-383

Anelaphus zacapensis sp. nov.

( Figs 23–28 )

Description. Holotype female. Integument mostly dark brown; ventral mouthparts dark reddish brown; antennae and legs reddish brown (basal antennomeres slightly darkened apically, apex of femora and base of tibiae darkened; elytra slightly lighter than pronotum, especially toward apex; ventral surface of abdomen dark reddish brown basally, gradually lighter toward apex, except transverse yellowish-brown band close to apex on ventrites 3 and 4 (more distinct on 3).

Head. Frons coarsely, abundantly punctate, except smooth central triangular plate close to postclypeus; with short, sparse, decumbent yellowish setae (whiter depending on light intensity), slightly more abundant laterally, and somewhat long, bristly setae of same color interspersed; with one long, erect yellowish seta on each side close to eyes. Antennal tubercles finely, sparsely punctate toward posterior area, punctures coarser (finer than on frons), more abundant toward anterior area, except smooth apex; with sparse, short yellowish setae. Area between antennal tubercles and posterior margin of upper eye lobes coarsely, somewhat rugose-punctate; with short, abundant yellowish setae not obscuring integument. Remaining surface of vertex finely, densely rugose-punctate, glabrous. Area behind upper eye lobes smooth close to eye (this region slightly, gradually widened toward lower eye lobe); remaining surface finely, densely rugose-punctate; smooth area glabrous; with abundant yellowish pubescence superiorly close to eye, sparse fringe of short yellowish-brown setae inferiorly close to smooth area, glabrous on remaining surface; superior area with two long, erect yellowish setae close to eye. Area behind lower eye lobes smooth close to eye, except inferior area finely punctate; remaining surface finely punctate superiorly, gradually rugose-punctate toward ventral surface; with yellowish pubescence inferiorly close to eye, and a few long, erect setae of same color interspersed, glabrous on remaining surface. Genae finely punctate close to eye, smooth toward apex; with short, decumbent yellowish setae close to eye, glabrous on remaining surface. Wide central area of postclypeus coarsely, abundantly punctate (punctures finer than on frons); with yellowish pubescence not obscuring integument, and one long, erect yellowish-brown seta on each side. Sides of postclypeus smooth, glabrous. Labrum coplanar with anteclypeus posteriorly (anterior margin of this area strongly concave), inclined anteriorly; coplanar area with short, sparse yellowish setae, and one long, erect yellowish-brown seta on each side close to anterior margin; inclined area with erect, sparse yellowish setae, and fringe of yellowish-brown setae on anterior margin. Gulamentum smooth, glabrous on posterior third, coarsely punctate between eyes (punctures finer and denser close to eyes); with sparse, both short and long, erect yellowish setae, more abundant close to eyes and sparser centrally. Maxillary palpomere IV and labial palpomere III gradually widened toward apex. Posterior 2/3 of outer side of mandibles coarsely rugosepunctate, with sparse yellowish-white setae and a few long, erect yellowish-brown setae interspersed; anterior third smooth and glabrous. Distance between upper eye lobes 0.27 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.34 times distance between outer margins of eyes. Antennae 1.5 times elytral length, reaching elytral apex near apex of antennomere X. Scape coarsely, abundantly punctate, except smooth dorsal apex; with yellowish pubescence not obscuring integument, sparser ventrally, and long, erect setae of same color interspersed. Pedicel and antennomeres III–XI with yellowish pubescence not obscuring integument, shorter and denser from VI; pedicel and antennomeres III–VI with long, erect yellowish setae ventrally (erect setae sparser toward VI); apex of pedicel and antennomeres III–X with long, erect yellowish setae; apex of antennomeres III–V with somewhat long spine at inner apex, slightly longer in III, with similar length in IV and V; apex of antennomere VI with short spine at inner apex; apex of antennomeres VII–VIII with spicule at inner apex. Antennal formula based on length of antennomere III (excluding apical spines): scape = 0.89; pedicel = 0.21; IV = 0.78; V = 1.00; VI = 0.96; VII = 1.00; VIII = 0.93; IX = 0.86; X = 0.71; XI = 0.75.

Thorax. Prothorax slightly wider than long; sides with rounded protuberance about middle, slightly divergent and sinuous from anterolateral angles to central protuberance, then slightly convergent toward posterolateral angles. Pronotum coarsely, densely punctate, without smooth central area; with dense pale yellow pubescent macula on each side of anterior third, and another smaller, less dense with same color on each side close to posterior margin; outer side of anterior pubescent maculae with somewhat abundant yellowish-white pubescence; remaining surface with sparse, decumbent yellowish-white setae, except glabrous central area of posterior half, and long, erect yellowishbrown setae interspersed. Sides of prothorax coarsely, abundantly punctate on wide central area, striate punctate close to anterior margins (this area gradually widened toward prosternum), almost smooth close to posterior margin (this area gradually widened toward procoxal cavity); with yellowish setae distinctly not obscuring integument, forming dense small macula centrally close to pronotum. Prosternum coarsely rugose-punctate on posterior 2/3, transversely striate, with fine punctures interspersed on anterior third; with sparse yellowish-white setae, slightly more abundant laterally, especially toward posterior margin. Prosternal process with abundant yellowish-white pubescence on anterior 2/3, with minute, sparse setae on posterior third; narrowest area 0.13 procoxal width. Procoxal cavities open behind. Mesoventrite with short, sparse grayish-white pubescence centrally, pubescence slightly longer laterally (appearing to be whiter depending on light intensity). Mesanepisternum, mesepimeron, metanepisternum, sides of metaventrite, and posterior area of metaventrite with abundant grayish-white pubescence (appearing to be whiter depending on light intensity); remaining surface of metaventrite with short, sparse grayishwhite setae, except glabrous area along metathoracic discrimen; sides of metaventrite with a few long, erect yellowish setae interspersed. Scutellum with dense yellowish-white pubescence close to margins, sparse on remaining surface, except glabrous anterocentral region. Elytra. Coarsely, somewhat abundantly punctate on anterior third, punctures gradually finer, sparser toward apex; with wide, transverse, irregular, fragmented white pubescent band slightly before middle, almost reaching epipleural and sutural margins; posterior half with small, irregular white pubescent maculae; remaining surface with short, decumbent, sparse yellowish-white setae; with long, erect, sparse yellowishbrown setae interspersed throughout; apex obliquely truncate. Legs. Femora without longitudinal carina on sides of club; with yellowish-white pubescence not obscuring integument; with long, both erect and suberect yellow setae interspersed, more abundant dorsally, especially on metafemora. Tibiae with short, decumbent yellowish-white setae not obscuring integument, and long, erect yellow setae interspersed, more abundant on meso- and metatibiae, except ventral surface with abundant, short, bristly yellow setae (gradually longer and more abundant toward apex), also interspersed with long, erect setae of same color. Metatarsomere I slightly longer than II–III together.

Abdomen. Ventrites 1–2 with somewhat abundant grayish-white pubescence laterally, sparser centrally (central pubescence slightly, more abundant centrally on 2); ventrites 3–4 with somewhat sparse grayish-white pubescence throughout; ventrite 5 with abundant grayish-white pubescence not obscuring integument; all ventrites with long, erect, sparse yellowish setae interspersed; apex of ventrite 5 rounded.

Dimensions (mm). Total length, 10.75; prothoracic length, 1.90; anterior prothoracic width, 1.45; posterior prothoracic width, 1.70; maximum prothoracic width, 2.05; humeral width, 2.60; elytral length, 7.20.

Type material. Holotype female from GUATEMALA, Zacapa: San Lorenzo Quarry Rd, Sierra Las Minas , 15.050609, -89.670787, 675 m, 29-31.V.2019, Skillman, Wappes and Monzón leg. ( FSCA, formerly FWSC).

Etymology. Allusive to Zacapa, Guatemalan department of the type locality.

Remarks. Anelaphus zacapensis sp. nov. is similar to A. belkini Skiles, 1985 , but differs by the sparser pronotal pubescence (denser in A. belkini ) and elytral apex without a spine at the sutural angle (present in A. belkini ). The new species differs from A. giesberti Chemsak and Linsley, 1979 by the pubescence on the frons not forming a dense yellow band laterally (present in A. giesberti ), and by the antennomeres spiniform from III to VIII (spiniform from III to V in A. giesberti ); from A. jansoni Linsley, 1961 by the distinctly longer antennae in females, surpassing the elytral apex (not reaching the elytral apex in females of A. jansoni ), and by the slender antennomeres (stouter in A. jansoni ); from A. niveivestitus (Schaeffer, 1905) by the absence of a dense yellow pubescence macula on each side of the vertex close to the eyes (present in A. niveivestitus ), pronotum with two yellowish-white maculae on each side (three yellow pubescent maculae on each side in A. niveivestitus ); from A. robi Hrabovsky, 1987 by the elytral punctures finer and less dense (coarser and denser in A. robi ), and by metatarsomere I slightly longer than II–III together (shorter than II–III together in A. robi ); from A. subdepressus (Schaeffer, 1904) by the pronotal and elytral pubescence sparser (more abundant in A. subdepressus ), and antennae surpassing the elytral apex in females (not reaching elytral apex in females of A. subdepressus ); from A. undulatus ( Bates, 1880) ( Figs 29–37 ) by the pronotal and elytral punctures finer (coarser in A. undulatus ), antennae surpassing elytral apex (not reaching elytral apex in females of A. undulatus ), and by antennomere V having a distinct apical spine (at most dentiform in A. undulatus ); from A. tikalinus Chemsak and Noguera, 2003 by the absence of dense pubescence on the base of the elytra (present in A. tikalinus ), and the antennae surpassing the elytral apex in females (not reaching elytral apex in females of A. tikalinus ); and from A. yucatecus Chemsak and Noguera, 2003 by the pubescence on pronotum forming isolated dense maculae (not forming in A. yucatecus ) and the central area of the pronotum without a smooth area (present in A. yucatecus ).

Figures

FIGURES 23–28. Anelaphus zacapensis, holotype female: 23) Dorsal habitus; 24) Ventral habitus; 25) Head, frontal view; 26) Pronotum; 27) Lateral habitus; 28) Procoxal cavities.

FIGURES 29–39. 29–33) Anelaphus undulatus (Bates, 1880), female from Mexico (Yucatán): 29) Dorsal habitus; 30) Ventral habitus; 31) Lateral habitus; 32) Head, frontal view; 33) Prothorax, lateral view. 34–37) Anelaphus undulatus, female from Mexico (Quintana Roo): 34) Lateral habitus; 35) Prothorax, lateral view; 36) Dorsal habitus; 37) Ventral habitus. 38–39) Anelaphus subdepressus (Schaeffer, 1904), female: 38) Prothorax, lateral view; 39) Dorsal habitus.