Arsipoda povilaensis Samuelson & Biondi 2016, sp. nov.
Creators: name: Samuelson, Allan
name: Biondi, Maurizio
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Arsipoda
Arsipoda povilaensis

description: Arsipoda povilaensis sp. nov.
urn:lsid:zoobank.org:act: 6E5BDE56-5D9F-4E95-AC92-7CA05D7 CAD 8E
Figs 2D, 5A, 9E, 11L, 15B
Diagnosis
Arsipoda povilaensis sp. nov. shares a thickset, ovoid body with A. atra sp. nov., A. evax and A. transversa sp. nov. (Figs 1B, F, 2D, I). It can be distinguished by the yellowish integuments (A. evax is black and metallic, A. atra sp. nov. is black, and A. transversa sp. nov. is reddish); compared to A. transversa sp. nov., with which it can be more easily confused, it also displays a less transverse and less convex pronotum (Fig. 5A, D). Genitalia are also clearly distinguishable (Figs 8C, G, 9E, 10A, 11B, F, L, P).
Etymology
The specific name is a Latinized adjective formed after Povila, the type locality where the species has been collected.
Type material
Holotype
NEW CALEDONIA (N): ♂, Picd’Amoa (Povila), - 20.95020165.29320, 400–450 m, rainforest, 17 Nov. 2010, R. Ruta and M. Wanat leg. (MNHN).
Paratypes
NEW CALEDONIA: 1 ♂, 3 ♀♀, same data of the holotype (MNHW); 1 ♂, Pic d’Amoa (Povila), -20.9510 165.29120, 400 m, lower rainforest, 18 Nov. 2010, M. Wanat and R. Ruta leg. (MNHW); 3 ♀♀, ditto, end 0.5 km of road, -20.95530 165.29100, 450 m, 18 Nov. 2010 (MNHW); 1 ♀, ditto, -20.95659 165.29103, 23 Nov. 2010, M. Wanat leg. (MNHW); 1 ♀, Pic d’Amoa, 20°57.2' S 165°17.5' E, 360 m, forest, at light, 14 Jan. 2007, R. Dobosz and M. Wanat leg. (USMB).
Description of the holotype (♂)
Body thickset, slightly convex (Fig. 2D); LB = 2.38 mm; maximum pronotal width at base (WP = 0.85 mm); maximum elytral width at basal third (WE = 1.18 mm). Dorsum yellowish, not metallic. Frons and vertex microreticulate and punctate; head grooves weakly impressed, not continued to postantennal region; genae and frontal carina short; antennae slightly longer than ½ body length (LAN = 1.28 mm; LAN/LB= 0.54), basally yellow, gradually and slightly darker towards apex; LA:100:6 7:56:56:78:78:78:78:89:78:122. Pronotum trapezoidal, clearly transverse (LP = 0.51 mm; WP/LP = 1.66), laterally weakly convex (Fig. 5A); anterior angles distinctly prominent; antebasal transverse sulcus weakly impressed, slightly sinuate, without clearly distinguishable lateral fovea; pronotal surface microreticulate, with small and dense punctuation, similar to that on head. Elytra slightly elongate (LE = 1.73 mm; WE/ LE = 0.68), laterally clearly arcuate; punctuation quite small, but distinctly larger than on pronotum; interstriae very finely microreticulate and micropunctuate. Legs yellow; first pro- and mesotarsomeres distinctly dilated; adhesive setae present on ventral side of first pro-, meso- and, partially, metatarsomeres. Venter light brown; last abdominal ventrite laterally clearly incised, without special preapical impressions. Median lobe of aedeagus (LAED = 0.94 mm; LE/LAED = 1.83) (Fig. 9E) in ventral view laterally parallel, slightly narrower in pre-apical part; apex rounded; in lateral view median lobe curved at basal third, then straight; apex sinuate, ventrally oriented; dorsal ligula from half length to apical part of median lobe of aedeagus, narrow.
Biometry
Male (n = 3; range): 1.60 Ĺ LE Ĺ 1.73 mm; 1.05 Ĺ WE Ĺ 1.08 mm; 0.48 Ĺ LP Ĺ 0.51 mm; 0.81 Ĺ WP Ĺ 0.85 mm; 1.25 Ĺ LAN Ĺ 1.28 mm; 0.94 Ĺ LAED Ĺ 0.94 mm; 2.16 Ĺ LB Ĺ 2.38 mm; 3.37 Ĺ LE/LP Ĺ 3.42; 1.26 Ĺ WE/WP Ĺ 1.38; 1.66 Ĺ WP/LP Ĺ 1.79; 0.66 Ĺ WE/LE Ĺ 0.68; 0.54 Ĺ LAN/LB Ĺ 0.59; 1.69 Ĺ LE/ LAED Ĺ 1.83.
Female (n = 8; mean and standard deviation; range): LE = 1.68 ± 0.04 mm (1.63 Ĺ LE Ĺ 1.74 mm); WE = 1.10 ± 0.04 mm (1.03 Ĺ WE Ĺ 1.15 mm); LP = 0.48 ± 0.01 mm (0.48 Ĺ LP Ĺ 0.51 mm); WP = 0.83 ± 0.03 mm (0.80 Ĺ WP Ĺ 0.88 mm); LAN = 1.13 ± 0.04 mm (1.10 Ĺ LAN Ĺ 1.18 mm); LSPc = 0.17 ± 0.01 mm (0.16 Ĺ LSPc Ĺ 0.18 mm); LB = 2.24 ± 0.08 mm (2.16 Ĺ LB Ĺ 2.34 mm); LE/LP = 3.46 ± 0.10 (3.27 Ĺ LE/LP Ĺ 3.58); WE/WP = 1.32 ± 0.04 (1.29 Ĺ WE/WP Ĺ 1.39); WP/LP = 1.72 ± 0.04 (1.66 Ĺ WP/ LP Ĺ 1.76); WE/LE = 0.66 ± 0.02 (0.62 Ĺ WE/LE Ĺ 0.68); LAN/LB = 0.51 ± 0.01 (0.49 Ĺ LAN/LB Ĺ 0.52); LE/LSPc = 10.06 ± 0.46 (9.38 Ĺ LE/LSPc Ĺ 10.86).
Paratypes very similar in shape and sculpture to the holotype. Some specimens slightly darker on elytra. Spermatheca (Fig. 11L) with rounded basal part; collum length about twice as long as apical part; ductus thickset, elongate, apically inserted.
Distribution
Endemic to the Pic d’Amoa, Central Grande Terre (Fig. 15B).
Ecological notes
Collected in rainforest between 360 and 450 m a.s.l. No information about host plants is available.
description: Published as part of Samuelson, Allan & Biondi, Maurizio, 2016, Taxonomic revision of the genus Arsipoda Erichson, 1842 (Coleoptera, Chrysomelidae) in New Caledonia, pp. 1-61 in European Journal of Taxonomy 230 on pages 33-36, DOI: 10.5852/ejt.2016.230, http://zenodo.org/record/3840408