Anelaphus flavofasciatus, Nascimento, 2018

Nascimento, Francisco E. de L., 2018, Elaphidiini (Coleoptera: Cerambycidae) from the Neotropical Region: new species, updated key, new synonym, and new records, Acta Entomologica Musei Nationalis Pragae 58 (1), pp. 177-185 : 178-179

Anelaphus flavofasciatus sp. nov.

( Figs 1–6 )

Type material. HOLOTYPE: ♀, COLOMBIA: ANTIOQUIA: Yarumal (07°04 ′ 15 ″ N, 75º26 ′ 59 ″ W, 2020 m), 23.–30.v.2016. V. Sinyaev & C. Pinilla leg. ( MZSP).

Description. Female. General integument brownish; mouthparts except mandibles, legs and antennae reddish brown.

Head. Frons coarsely, densely, confluently punctate; with abundant, decumbent yellow setae obscuring integument laterally ( Fig. 4 ); median groove distinct frontally, from clypeus to level of antennal sockets. Genae slightly angular at apex; surface coarsely punctate; with short, decumbent yellowish setae. Maxillary palpomere IV slightly securiform; labial palpomere III distinctly securiform. Mandibles coarsely punctate dorsally; proximal two-thirds with subdecumbent setae interspersed with long setae; distal third smooth and glabrous.Area between antennal tubercles coarsely punctate, punctures more distant from each other than those on frons; with short, abundant, decumbent yellow setae near margins of upper eye lobes. Antennal tubercles not elevated; area behind upper eye lobes coarsely, densely, confluently punctate. Gulamentum coarsely punctate, with sparse, subdecumbent whitish setae between lower eye lobes; remaining areas smooth and glabrous. Upper eye lobes with four rows of ommatidia; distance between upper eye lobes about twice width of upper eye lobe. Antennae reaching elytral apex at about middle of antennomere XI. Scape gradually widened distally; surface coarsely punctate; punctures evenly distributed; with subdecumbent yellowish setae evenly distributed; apex smooth and glabrous. Antennomeres with subdecumbent whitish setae, and long yellowish setae interspersed (especially along inner side). Antennomers V–XI longitudinally flattened at outer margin; antennomeres III–VI with apical spine on inner side; length of spine compared with distal diameter of respective antennomere: III – 1.0; IV – 0.6; V – 0.4; VI – 0.3; antennomeres V–X with spicule at apex of both inner and outer sides. Antennal formula (ratio) based on antennomere III (spines not included): scape = 1.25; pedicel = 0.20; IV = 0.90; V = 1.1; VI = 1.10; VII = 1.05; VIII = 0.95; IX = 0.90; X = 0.75; XI = 0.90.

Thorax. Prothorax 1.1 times longer than wide; mostly parallel-sided with anterior fifth visibly constricted towards anterior margin. Pronotum coarsely punctate, puctures evenly distributed, except on slightly elevated, narrow, smooth and glabrous longitudinal median area; surface with short, decumbent yellowish setae. Anterior third of prosternum sparsely punctate; with a few transverse, slightly elevated carinae; margin of procoxal cavity and prosternal process with abundant, decumbent setae (not obscuring integument); prosternal process 0.18 times as wide as procoxal cavity, widened at apex, about three- -quarter procoxal width; procoxal cavity closed behind. Mesoventrite with abundant, subdecumbent whitish setae (not obscuring integument); mesoventral process abruptly elevated; width about half diameter of mesocoxal cavity; widened and notched at apex. Mesanepisternum and mesepimeron with abundant, subdecumbent whitish setae (not obscuring integument). Metaventrite coarsely punctate except close to metathoracic discrimen; with abundant, subdecumbent whitish setae laterally, gradually sparser towards middle; metathoracic discrimen not reaching metaventral process; metanepisternum and metepimeron with short, less abundant, decumbent whitish setae. Scutellum length 0.7 its width; with abundant, decumbent yellowish setae (obscuring integument). Elytra coarsely, abundantly punctate on anterior two-thirds, punctures gradually sparser towards apex; surface with irregular area of short, decumbent whitish setae, with long yellowish setae interspersed; apex transversely truncate. Legs. Coxae with short, subdecumbent whitish setae, evenly distributed; femora with decumbent whitish setae, with long setae interspersed; tibiae with short, decumbent whitish setae, with yellowish long setae interspersed, yellowish setae more abundant on distal half. Femora slightly clavate, largest diameter about twice the basal diameter; apex transversely truncate. Pro- and mesotarsomere I slightly shorter than II–III together; metatarsomere I about as long as II–III together.

Abdomen. Ventrites with short decumbent whitish setae, with long setae interspersed, especially laterally; longest length of ventrite I about twice the length of II; II–IV slightly decreasing in length, V 1.3 longer than IV, truncate at apex.

Dimensions (in mm). Total length 14.60; prothorax length 3.00; greatest width of prothorax 2.25; anterior width of prothorax 2.00; posterior width of prothorax 2.25; humeral width 3.70; elytral length 9.70.

Differential diagnosis. Anelaphus flavofasciatus sp. nov. is similar to A. sparsus Martins & Galileo, 2003 and A. subseriatus (Bates, 1885) ( Figs 7–8 ) in procoxal cavities closed behind. The new species differs from both in less dense pubescence pattern, with subdecumbent setae on the pronotum and elytra, metaventrite densely, coarsely punctate with subdecumbent setae, scape more elongate, and antennae in females reaching the elytral apex. In A. sparsus and A. subseriatus ( Figs 7-8 ) the pronotum and elytra are densely pubescent, the metaventrite is densely pubescent, sparsely and finely punctate, the scape is shorter and the antennae in females do not reach the elytral apex. Additionally, the new species can be differentiated by the anterior margin of the mesoventral process being slightly elevated, nearly forming a tubercle. Anelaphus sparsus and A. subseriatus have the upper margin of the mesoventral process not elevated. In the integument color and pubescence pattern, A. flavofasciatus sp. nov. resembles A. colombianus Martins & Galileo, 2003 and A. souzai (Zajciw, 1964) , but can be differentiated from both primarily by the antennae of the females reaching the elytral apex and by the sparse pubescence of pronotum, without areas of obscured integument. In A. colombianus and A. souzai the antennae of females reach the posterior third of elytra and the pronotum has areas of integument obscured by pubescence.

Etymology. The species name is composed Latin adjective flavofasciatus (- a, - um), meaning ‘yellow-striped’; the name refers to the abundant areas of yellowish setae on the frons.

Distribution. Colombia: Antioquia.

Figures

Figs 1–7. 1–6 – Anelaphus flavofasciatus sp. nov., holotype, female: 1 – dorsal view, 2 – ventral view, 3 – lateral view, 4 – frontal view, 5 – head in lateral view, 6 – metaventrite. 7– Anelaphus subseriatus (Bates, 1885), female, metaventrite.