Anelaphus hirtus Chemsak & Noguera, 2003

Santos-Silva, Antonio, Botero, Juan Pablo & Tirant, Stéphane Le, 2018, A new genus, four new species and taxonomic and geographic notes in Mexican Cerambycidae, Zootaxa 4420 (2), pp. 189-210 : 192-193

Anelaphus hirtus Chemsak & Noguera, 2003

( Figs. 3–6 )

Anelaphus hirtus Chemsak & Noguera, 2003: 61 ; Monné, 2017a: 167 (cat.).

Redescription. Male. Integument mostly dark brown; mouthparts, scape and trochanters dark reddish brown; antennomeres reddish brown; tibiae dark reddish brown basally, gradually lighter toward apex; tarsi reddish brown; distal area of abdominal ventrites I–IV dark reddish brown.

Head. Frons coarsely, densely, confluently punctate except smooth, widely triangular area close to clypeus; with grayish white pubescence not obscuring integument, distinctly longer laterally (more yellowish depending on angle of light source). Area between antennal tubercles with sculpturing and pubescence as on frons. Area from base of upper eye lobes gradually elevated toward prothoracic margin; coarsely, confluently punctate between eyes, gradually finer toward prothoracic margin; with decumbent, moderately long yellowish white setae between eyes (more whitish depending on angle of light source), not obscuring integument, with long, sub-erect yellowish white setae interspersed laterally; remaining surface of vertex nearly glabrous. Area behind upper eye lobes moderately coarsely, abundant, confluently punctate; with a few long, erect, yellowish white setae close to eye; area behind lower eye lobes glabrous, finely rugose-punctate. Genae finely, sparsely punctate except smooth apex; with sparse grayish white pubescence except glabrous apex. Antennal tubercles slightly elevated, somewhat flattened dorsally; moderately coarsely, abundant, confluently punctate except smooth apex (this latter area wider centrally); with sparse grayish white pubescence except glabrous apex. Median groove distinct from clypeus to area between upper eye lobes. Gulamentum smooth, glabrous between prothorax and eyes, coarsely, abundant punctate, with long, erect yellowish white setae between eyes. Last segment of maxillary and labial palpi distinctly securiform. Distance between upper eye lobes 0.73 times length of scape; in frontal view, distance between lower eye lobes 1.08 times length of scape. Antennae 1.4 times elytral length, reaching elytral apex; scape moderately coarsely, densely punctate; with sparse yellowish white pubescence (more whitish depending on angle of light source) interspersed with long, erect yellowish setae; antennomeres with pale yellow not obscuring integument; antennomeres III–X with long, erect pale yellow setae ventrally, gradually shorter, sparser toward X; antennomeres III–VII with spine at inner apex, gradually shorter toward VII. Antennal formula (ratio) based on length of antennomere III (only one measured; excluding apical spines): scape = 0.81; pedicel = 0.21; IV = 0.80; V = 0.85; VI = 0.83; VII = 0.83; VIII = 0.83; IX = 0.80; X = 0.76; XI = 0.98. Length of apical spines of antennomeres compared with greatest width of segment (only one specimen measured): III = 0.83; IV = 0.65; V = 0.53; VI = 0.50; VII = 0.27. Ratio of spines of antennomeres based on length of spine of antennomere III: IV = 0.80; V = 0.60; VI = 0.54; VII = 0.27.

Thorax. Prothorax slightly longer than wide; sides slightly rounded from basal constriction to distal margin. Pronotum with slightly distinct gibbosity on each side after middle; coarsely, abundantly punctate except smooth, subelliptical central area between basal constriction and area near middle; with grayish white pubescence, partially obscuring integument laterally (especially on each side of basal third), sparser centrally except glabrous smooth area; with long, decumbent yellowish brown setae centrally near middle, and sub-erect, sparse yellowish white setae between base and middle. Sides of prothorax coarsely, moderately abundantly punctate; with grayish white pubescence not obscuring integument interspersed with long, sub-erect yellow setae. Prosternum transversely, widely sulcate at about middle; basal half coarsely, abundantly punctate centrally, finer laterally; area between transverse sulcus and distal margin moderately finely striate-punctate; with grayish white pubescence, distinctly sparser between transverse sulcus and distal margin; with long, erect, sparse yellowish white setae, more abundant between transverse sulcus and distal margin. Prosternal process longitudinally sulcate centrally; with grayish white pubescence not obscuring integument. Mesoventrite with grayish white pubescence not obscuring integument. Mesanepisternum and mesepimeron with dense grayish white pubescence. Mesoventral process without tubercle, deeply emarginated at apex. Metanepisternum with dense grayish white pubescence nearly obscuring integument. Metaventrite moderately coarsely, densely punctate; with grayish white pubescence nearly obscuring integument laterally, gradually spacer toward center. Scutellum with grayish white pubescence obscuring integument. Elytra. Coarsely, abundantly punctate on basal half, gradually finer, slightly sparser toward apex; with abundant grayish white pubescence not obscuring integument, interspersed with long, erect grayish white setae; apex truncate, unarmed. Legs. Femora coarsely, densely, confluently punctate; with grayish white pubescence not obscuring integument, interspersed with long, erect yellowish setae. Tibiae moderately coarsely, densely punctate; sides carinate from base to near apex; with short and long, erect yellowish setae interspersed with sparse grayish white setae.

Abdomen. Ventrites moderately finely, densely punctate except smooth, narrow distal area of I–IV; with grayish white pubescence partially obscuring integument, except glabrous smooth area. Apex of ventrite V slightly rounded.

Female. Unknown.

Dimensions in mm (males). Total length, 12.65–14.65; prothoracic length, 2.55–3.05; basal prothoracic width, 2.15–2.60; distal prothoracic width, 1.95–2.35; widest prothoracic width, 2.50–3.00; humeral width, 2.90– 3.85; elytral length, 8.50–10.40.

Material examined. MEXICO, Guerrero: Xalitla (588 m), 3 males, 12.VI.2010, D. Curoe col. (2 IMQC; 1 MZSP); (600 m), 6 males, 1.VIII.2011, D. Curoe col. (5 IMQC; 1 MZSP).

Remarks. Anelaphus hirtus is similar to A. michelbacheri Linsley, 1942 by the long spine at apex of antennomeres III–IV; antennomere III longer than IV; antennomere IV and V with similar length; pronotum with smooth and glabrous area. In A. michelbacheri the spine at apex of antennomeres is shorter and present from III to V, antennomere IV slightly longer than III, antennomere V distinctly longer than IV, and pronotum without smooth and glabrous area. It can be separated from A. piceus (Chemsak, 1962) by the long spine at apex of antennomeres III and IV (very small in A. piceus ), antennomeres V–VII with spine at apex (absent in A. piceus ), and pronotum with smooth and glabrous area (absent in A. piceus ). Anelaphus hirtus differs from A. tuckeri ( Casey, 1924) by the antennomeres III–VII with distinct spine at apex (at most, with small spine at antennomere III in A. tuckeri ), and by the pronotum with smooth and glabrous area (absent in A. tuckeri ).

The specimens used in this redescription are entirely dark, while the holotype and paratypes are lighter, and the elytra have a longitudinal blackish band. However, there are no morphological differences between the specimens. Furthermore, according to Chemsak & Noguera (2003): “The specimens from the state of Oaxaca […] are placed into this species, but not paratypical. These have the pubescence shorter, erect hairs less numerous and the elytra lack the vague darker areas on the disk. Structurally they are identical to the type series.” The general pubescence in the specimens studied by us does not differ from that in the female allotype (examined through photographs). The general pubescence in the specimens examined by us is grayish white (white according to the general description). However, the paratype figured in Bezark (2017) has the general pubescence distinctly yellower.

Figures

FIGURES 1–9. 1–2, Eburia (Eburia) girouxae, male, 1, dorsal habitus, 2, ventral habitus; 3–6, Anelaphus hirtus, male; 3, head, frontal view, 4, dorsal habitus, 5, ventral habitus, 6, lateral habitus; 7, Plagionotus astecus, male, dorsal habitus; 8, Anopliomorpha hirsuta, female, dorsal habitus; 9, Ischnocnemis cyaneus, female, dorsal habitus.