Arsipoda gomezzuritai Samuelson & Biondi 2016, sp. nov.

Arsipoda gomezzuritai sp. nov.

urn:lsid:zoobank.org:act: 51AFB32A-32D2-4117-98E2-5E9EFBF6B926

Figs 3C, 10D, 11S, 15B

Diagnosis

This species is similar in shape, sculpture and often color to A. longifrons sp. nov. and A. rostrata (Figs 2A, F, 3C). They all are distinguishable from the other Arsipoda species by the elongate antennae (LAN/LB: ³ Ż 0.70, ♀ generally Ż 0.60) and the elongate frons with narrow frontal carina. The three species can be reliably distinguished by the shape of their genitalia (Figs 9B, G, 10D, 11J, M, S).

Etymology

Male patronym. Named after Dr. Jesús Gómez-Zurita (Institut de Biologia Evolutiva, Barcelona, Spain) for his contribution to the knowledge of Arsipoda in New Caledonia.

Type material

Holotype

NEW CALEDONIA (S): ³, Col des Deux Tétons, -22.2059 166.6797, 220–250 m, humid forest, 9 Dec. 2010, M. Wanat & R. Ruta leg. (MNHN).

Paratypes

NEW CALEDONIA: 1 ♀, same data as the holotype (MNHW); 1 ³, Bois du Sud, -22.1720 166.76111, 220 m, maquis, 4 Dec. 2008, M. Wanat leg. (MNHW); 1 ♀, ditto, 22°10.5' S 166°45.8' E, 160 m, maquis, night coll. (lamp and beating), 23 Dec. 2006, R. Dobosz and M. Wanat leg. (USMB); 3 ³³, 5 ♀♀, Dzumac Mts (Mt Ouin road junction), 22°01.9' S 166°28.0' E, 900 m, night collecting, 28 Dec. 2006, M. Wanat and R. Dobosz leg. (MNHW); 1 ³, ditto, beating (MNHW); 3 ♀♀, ditto (USMB); 1 ♀, Dzumac Road, 22°06.4' S 166°27.4' E, 470 m, maquis, 30 Dec. 2006, R. Dobosz and M. Wanat leg. (USMB); 2 ♀♀, ditto (Mt Ouin to Mts Couvélé road junctions), 22°04.1' S 166°26.8' E, 800– 900 m, 29 Dec. 2006, M. Wanat leg. (MNHW); 2 ³³, Pic du Pin, base, 22°14,9' S 166°49,7' E, 280 m, forest and plantation, 25 Dec. 2006, M. Wanat and R. Dobosz leg. (MNHW); 1 ³, 1 ♀, ditto, -22.24843 166.82883, 280 m, beating, forest edge, 2 Dec. 2008, M. Wanat leg. (MNHW); 2 ³³, Haute Rivière Bleue, track La Tranchée-Hte Pourina, 22°04.0' S 166°37.4' E, 330–560 m, 21 Dec. 2006, M. Wanat leg. (MNHW); 1 ³, 3 ♀♀, ditto, track to La Tranchée, 22°05' S 166°38' E, 190–330 m, 20 Dec. 2006, M. Wanat and R. Dobosz leg. (MNHW); 3 ♀♀, Mt Ouin Rd, 400 m N of Dzumac jct, -22.0288 166.4698, 900 m, at light, 6 Dec. 2010, M. Wanat and R. Ruta leg. (MNHW); 2 ³³, 4 ♀♀, ditto, km 0– 0.5 N of Dzumac jct, -22.03180 166.46740, 900 m, 4 Dec. 2010, R. Ruta and M. Wanat leg. (MNHW); 2 ³³, ditto, night beating (MNHW).

Description of the holotype (³)

Body moderately elongate and convex; LB = 2.50 mm; maximum pronotal width at base (WP = 0.83 mm); maximum elytral width at basal third (WE = 1.20 mm). Dorsum dark bronze, metallic. Frons and vertex irregularly wrinkled and punctate; head grooves distinctly impressed, not continued to postantennal region; genae and frontal carina elongate; antennae clearly longer than ½ body length (LAN = 1.98 mm; LAN/LB = 0.79), basally light brown, gradually and slightly darker toward apex; LA: 100:69:61:92:115:115:131:138:131:123:154. Pronotum slightly trapezoidal, moderately transverse (LP = 0.54 mm; WP/LP = 1.53), laterally weakly concave; anterior angles not prominent; antebasal transverse sulcus strongly impressed, weakly sinuate; lateral fovea not clearly distinguishable; pronotal punctuation small and shallow, evenly distributed on the irregularly microreticulate and very sparsely micropunctuate surface. Elytra moderately elongate (LE = 1.88 mm; WE/LE = 0.64), laterally slightly arcuate; punctuation clearly larger than on pronotum, strongly impressed; interstriae smooth, very finely micropunctate. Legs yellow, with darkened femora; first pro- and mesotarsomeres distinctly dilated; adhesive setae present on ventral side of first pro-, meso- and, partially, metatarsomeres. Venter brownish; last abdominal ventrite laterally clearly incised, without special preapical impressions. Median lobe of aedeagus (LAED = 1.17 mm; LE/LAED = 1.61) (Fig. 10D) in ventral view thickset, narrower at base and at apical third, and distally widely lanceolate, with median rounded small tooth; ventral surface with deep ventral sulcus; in lateral view, median lobe straight, with two lateral small humps at apical third, and small sinuate apex dorsally bent; dorsal ligula short, from apical third to apical part of median lobe of aedeagus, narrow, thinner toward apex.

Biometry

Male (n = 10; mean and standard deviation; range): LE = 2.01 ± 0.13 mm (1.88 Ĺ LE Ĺ 2.23 mm); WE = 1.31 ± 0.08 mm (1.20 Ĺ WE Ĺ 1.45 mm); LP = 0.56 ± 0.03 mm (0.53 Ĺ LP Ĺ 0.60 mm); WP = 0.89 ± 0.05 mm (0.83 Ĺ WP Ĺ 0.99 mm); LAN = 2.12 ± 0.14 mm (1.98 Ĺ LAN Ĺ 2.35 mm); LAED = 1.25 ± 0.09 mm (1.16 Ĺ LAED Ĺ 1.38 mm); LB = 2.69 ± 0.16 mm (2.50 Ĺ LB Ĺ 2.97 mm); LE/LP = 3.58 ± 0.15 (3.38 Ĺ LE/LP Ĺ 3.83); WE/WP = 1.47 ± 0.05 (1.42 Ĺ WE/WP Ĺ 1.58); WP/LP = 1.58 ± 0.05 (1.50 Ĺ WP/ LP Ĺ 1.65); WE/LE = 0.65 ± 0.01 (0.64 Ĺ WE/LE Ĺ 0.67); LAN/LB = 0.79 ± 0.03 (0.75 Ĺ LAN/LB Ĺ 0.83); LE/LAED = 1.60 ± 0.06 (1.51 Ĺ LE/LAED Ĺ 1.70).

Female (n = 10; mean and standard deviation; range): LE = 2.25 ± 0.15 mm (2.03 Ĺ LE Ĺ 2.45 mm); WE = 1.44 ± 0.11 mm (1.25 Ĺ WE Ĺ 1.55 mm); LP = 0.62 ± 0.06 mm (0.53 Ĺ LP Ĺ 0.69 mm); WP = 0.95 ± 0.08 mm (0.83 Ĺ WP Ĺ 1.05 mm); LAN = 1.87 ± 0.14 mm (1.65 Ĺ LAN Ĺ 2.03 mm); LSPc = 0.18 ± 0.01 mm (0.16 Ĺ LSPc Ĺ 0.21 mm); LB = 3.01 ± 0.20 mm (2.69 Ĺ LB Ĺ 3.25 mm); LE/LP = 3.63 ± 0.20 (3.30 Ĺ LE/LP Ĺ 3.88); WE/WP = 1.51 ± 0.04 (1.44 Ĺ WE/WP Ĺ 1.57); WP/LP = 1.54 ± 0.04 (1.46 Ĺ WP/LP Ĺ 1.60); WE/LE = 0.64 ± 0.01 (0.62 Ĺ WE/LE Ĺ 0.66); LAN/LB = 0.62 ± 0.02 (0.57 Ĺ LAN/LB Ĺ 0.65); LE/LSPc = 12.44 ± 1.00 (11.18 Ĺ LE/LSPc Ĺ 13.92).

Paratypes generally very similar in shape and sculpture to the holotype; some specimens paler. Females with clearly shorter antennae. Spermathecal capsule (Fig. 11S) thin and curved, with elongate and wrinkled collum; basal part slightly enlarged, not abruptly separated from collum; apical part short; ductus short, apically inserted.

Distribution

Southern Grande Terre (Fig. 15B).

Ecological notes

Collected in humid forest, maquis and plantation between 160 and 900 m a.s.l. No information is available about host plants. Pollen found in the gut of some specimens.