Arsipoda montana, Samuelson & Biondi, 2016

Samuelson, Allan & Biondi, Maurizio, 2016, Taxonomic revision of the genus Arsipoda Erichson, 1842 (Coleoptera, Chrysomelidae) in New Caledonia, European Journal of Taxonomy 230, pp. 1-61 : 30-31

publication ID

https://doi.org/ 10.5852/ejt.2016.230

publication LSID

lsid:zoobank.org:pub:80B8573D-AEF3-4E98-A9C8-BF652ED4124E

DOI

https://doi.org/10.5281/zenodo.3853545

persistent identifier

https://treatment.plazi.org/id/D410BA08-D43B-438A-A48F-800B1F4CDCB8

taxon LSID

lsid:zoobank.org:act:D410BA08-D43B-438A-A48F-800B1F4CDCB8

treatment provided by

Valdenar

scientific name

Arsipoda montana
status

sp. nov.

Arsipoda montana sp. nov.

urn:lsid:zoobank.org:act:D410BA08-D43B-438A-A48F-800B1F4CDCB8

Figs 2B View Fig , 4E View Fig , 9C View Fig , 14B View Fig

Diagnosis

Arsipoda montana sp. nov. is a bronze, strongly metallic species, quite similar to A. communis sp. nov. in sculpture and color. They can be distinguished by the more transverse pronotum and the more deeply impressed pronotal transverse sulcus in A. montana sp. nov. ( Fig. 4B, E View Fig ). Median lobe of aedeagus is also useful to discriminate between the two species ( Figs 8D View Fig , 9C View Fig ).

Etymology

The specific epithet is a Latinized adjective referring to the high altitude where the species was collected.

Type material

Holotype

NEW CALEDONIA (S): ³, Mt Humboldt , -21.8793 166.4232, ca 1400 m, montane maquis, 13 Nov. 2010, R. Ruta and M. Wanat leg. ( MNHN). GoogleMaps

Paratypes

NEW CALEDONIA: 2 ³³, 1 ♀, same data of the holotype ( MNHW).

Description of the holotype (³)

Body quite thickset, moderately elongate and convex; LB = 2.72 mm; maximum pronotal width at base (WP = 0.93 mm); maximum elytral width at basal third (WE = 1.28 mm). Dorsum dark bronze, metallic. Frons and vertex microreticulate and densely punctate; head grooves moderately impressed, not continued to postantennal region; genae and frontal carina short; antennae slightly longer than ½ body length ( LAN = 1.73 mm; LAN/ LB = 0.63), brown, slightly paler basally; LA: 100:64:64:73:91:91:100:100:100:91:127. Pronotum trapezoidal, clearly transverse (LP = 0.53 mm; WP/LP= 1.76), laterally straight ( Fig. 4E View Fig ); anterior angles slightly prominent, obliquely beveled; antebasal transverse sulcus strongly impressed, straight; lateral fovea moderately impressed; pronotal punctuation small and shallow, dense, evenly distributed on the densely microreticulate surface. Elytra moderately elongate (LE = 2.00 mm; WE/LE = 0.64), laterally moderately arcuate; punctuation quite small but clearly larger than on pronotum, strongly impressed; interstriae microreticulate and micropunctuate. Legs brownish, with darkened femora; first pro- and mesotarsomeres distinctly dilated; adhesive setae present on ventral side of first pro-, meso- and, partially, metatarsomeres. Venter brown; last abdominal ventrite laterally clearly incised, without special preapical impressions. Median lobe of aedeagus (LAED = 1.25 mm; LE/ LAED = 1.59) ( Fig. 9C View Fig ) slender in ventral view, laterally subparallel, slightly narrower at middle and preapical part; apex acute, slightly rounded, with large, apically rounded median tooth; ventral surface with complete, moderately deep ventral sulcus; in lateral view, median lobe curved at basal half, then straight; dorsal ligula long about half of median lobe, fusiform, quite narrow.

Biometry

Male (n = 3; range): 1.93 Ĺ LE Ĺ 2.00 mm; 1.25 Ĺ WE Ĺ 1.30 mm; 0.51 Ĺ LP Ĺ 0.55 mm; 0.85 Ĺ WP Ĺ 0.93 mm; 1.68 Ĺ LAN Ĺ 1.73 mm; 1.22 Ĺ LAED Ĺ 1.25 mm; 2.63 Ĺ LB Ĺ 2.72 mm; 3.61 Ĺ LE/LP Ĺ 3.81; 1.38 Ĺ WE/WP Ĺ 1.47; 1.66 Ĺ WP/LP Ĺ 1.76; 0.64 Ĺ WE/LE Ĺ 0.65; 0.62 Ĺ LAN/LB Ĺ 0.65; 1.58 Ĺ LE/ LAED Ĺ 1.62. Paratypes (³) very similar in shape, sculpture and color to the holotype.

Female (n = 1): LE = 1.86 mm; WE = 1.25 mm; LP = 0.50 mm; WP = 0.85 mm; LAN = 1.45 mm; LB = 2.66 mm; LE/LP = 3.73; WE/WP = 1.47; WP/LP = 1.70; WE/LE = 0.67; LAN/LB = 0.55. Spermatheca not detected.

Distribution

Endemic to Mt Humboldt, Southern Grande Terre ( Fig. 14B View Fig ).

Ecological notes

Collected in montane maquis at 1400 m a.s.l. No information is available about host plants.

MNHN

Museum National d'Histoire Naturelle

LAN

Lancing College

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

SubOrder

Polyphaga

SuperFamily

Chrysomeloidea

Family

Chrysomelidae

SubFamily

Galerucinae

Tribe

Alticini

Genus

Arsipoda

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