Arsipoda elongata 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 elongata

description: Arsipoda elongata sp. nov.
urn:lsid:zoobank.org:act: 97EB34B7-866E-4D3F-ACBE-5341B904489E
Figs 1E, 8F, 11E, 15A
Diagnosis
Arsipoda elongata sp. nov. shares the elongate antennae with A. gomezzuritai sp. nov., A. longifrons sp. nov. and A. rostrata (LAN/LB: ♂ Ż 0.70, ♀ generally Ż 0.60) (Figs 1E, 2A, F, 3C). However, it can easily be distinguished from them by the elongate, laterally parallel elytra, and by the green metallic color.
Etymology
The specific name is a Latinized adjective referring to the elongate elytra of this species.
Type material
Holotype
NEW CALEDONIA (S): ♂, Mt Humboldt, -21.8793 166.4232, ca 1400 m, montane maquis, 13 Nov. 2010, R. Ruta & M. Wanat leg. (MNHN).
Paratypes
NEW CALEDONIA: 2 ♂♂, 5 ♀♀, same data as the holotype (MNHW).
Description of the holotype (♂)
Body elongate, rather flat (Fig. 1E); LB = 2.81 mm; maximum pronotal width at base (WP = 0.85 mm); maximum elytral width at basal third (WE = 1.18 mm). Dorsum dark metallic green. Frons and vertex wrinkled and densely punctate; frontal grooves moderately impressed, not continued to postantennal region; genae and frontal carina moderately elongate; antennae clearly longer than ½ body length (LAN = 2.18 mm; LAN/LB = 0.77), brown; LA: 100:61:69:69:92:100:108:108:108:100:131. Pronotum slightly trapezoidal, moderately transverse (LP = 0.54 mm; WP/LP = 1.58), laterally straight; anterior angles moderately prominent, obliquely beveled; antebasal transverse sulcus clearly impressed, almost straight; lateral fovea clearly distinguishable; pronotal punctuation small, dense, distinctly impressed, evenly distributed on the microreticulate surface. Elytra distinctly elongate (LE = 2.03 mm; WE/LE = 0.58), laterally slightly arcuate; punctuation clearly larger than on pronotum, strongly impressed; interstriae smooth, very finely microreticulate and micropunctuate. Legs light brown, with dark femora; first pro- and mesotarsomeres distinctly dilated; adhesive setae on ventral side of first pro-, meso- and, partially, metatarsomeres. Venter black; last abdominal ventrite laterally clearly incised, without special preapical impressions. Median lobe of aedeagus (LAED = 1.40 mm; LE/LAED = 1.45) (Fig. 8F) slender, in ventral view laterally parallel, slightly narrower in apical part; apex triangular, with a small rounded median tooth; ventral surface with a wide, moderately deep ventral sulcus along central third; in lateral view, median lobe clearly and evenly curved; dorsal ligula as long as half of median lobe, wide but gradually narrower toward apex.
Biometry
Male (n = 3; range): 2.03 Ĺ LE Ĺ 2.20 mm; 1.18 Ĺ WE Ĺ 1.33 mm; 0.54 Ĺ LP Ĺ 0.64 mm; 0.85 Ĺ WP Ĺ 0.93 mm; 2.18 Ĺ LAN Ĺ 2.30 mm; 1.36 Ĺ LAED Ĺ 1.44 mm; 2.81 Ĺ LB Ĺ 3.13 mm; 3.45 Ĺ LE/LP Ĺ 3.77; 1.38 Ĺ WE/WP Ĺ 1.43; 1.45 Ĺ WP/LP Ĺ 1.58; 0.58 Ĺ WE/LE Ĺ 0.60; 0.73 Ĺ LAN/LB Ĺ 0.77; 1.45 Ĺ LE/LAED Ĺ 1.58.
Female (n = 5; mean and standard deviation; range): LE = 2.24 ± 0.07 mm (2.15 Ĺ LE Ĺ 2.35 mm); WE = 1.32 ± 0.05 mm (1.25 Ĺ WE Ĺ 1.38 mm); LP = 0.62 ± 0.02 mm (0.60 Ĺ LP Ĺ 0.65 mm); WP = 0.93 ± 0.04 mm (0.88 Ĺ WP Ĺ 0.98 mm); LAN = 1.86 ± 0.06 mm (1.78 Ĺ LAN Ĺ 1.93 mm); LSPc = 0.20 ± 0.01 mm (0.18 Ĺ LSPc Ĺ 0.21 mm); LB = 3.17 ± 0.13 mm (3.00 Ĺ LB Ĺ 3.34 mm); LE/LP = 3.61 ± 0.04 (3.58 Ĺ LE/LP Ĺ 3.67); WE/WP = 1.41 ± 0.04 (1.36 Ĺ WE/WP Ĺ 1.46); WP/LP = 1.50 ± 0.03 (1.46 Ĺ WP/ LP Ĺ 1.53); WE/LE = 0.59 ± 0.01 (0.58 Ĺ WE/LE Ĺ 0.60); LAN/LB = 0.59 ± 0.01 (0.57 Ĺ LAN/LB Ĺ 0.61); LE/LSPc = 11.30 ± 0.70 (10.75 Ĺ LE/LSPc Ĺ 12.50).
Paratypes very similar in shape, sculpture and color to the holotype. Females with shorter antennae. Spermathecal capsule (Fig. 11E) with globose basal part; collum about twice as long as apical part; ductus thin, short, apically inserted.
Distribution
Endemic to Mt Humboldt, Southern Grande Terre (Fig. 15A).
Ecological notes
Collected in montane maquis at 1400 m a.s.l. No information is available about host plants.
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 14-17, DOI: 10.5852/ejt.2016.230, http://zenodo.org/record/3840408