Arsipoda geographica Gómez-Zurita, 2010

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 : 19-20

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.3853565
persistent identifier	https://treatment.plazi.org/id/03D7C972-FF92-FFEB-FD9D-323EFACBFD76
treatment provided by	Valdenar
scientific name	Arsipoda geographica Gómez-Zurita, 2010
status

Treatment

Figs 1G View Fig , 6B View Fig , 8H View Fig , 11G View Fig , 14A View Fig

Arsipoda geographica Gómez-Zurita in Gómez-Zurita et al., 2010: 2564 View Cited Treatment .

Arsipoda species A – Samuelson 1989: 409.

Arsipoda sp. – Samuelson 1994: 181.

New material

NEW CALEDONIA: 1 specimen, Mt Humboldt, -21.87930 166.42320, 1500–1618 m, montane maquis, 13 Nov. 2010, M. Wanat and R. Ruta leg. ( MNHW); 11 specimens, ditto, a 1400 m ( MNHW); 1 specimen, ditto, -21.88120 166.41770, 1400–1500 m ( MNHW); 2 specimens, ditto, -21.88210 166.41290, 1400 m, night beating, mont. maquis ( MNHW); 4 specimens, ditto (S track), Botanical Reserve, -21.88267 166.39968, 1130–1280 m, moss forest, 10 Nov. 2008, M. Wanat leg. ( MNHW); 1 specimen, 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 specimen, Dzumac Mts (Mt Ouin road junction), 22°01.9' S 166°28.0' E, 900 m, beating, 28 Dec. 2006, R. Dobosz and M. Wanat leg. ( USMB); 1 specimen, ditto (base), km 1.5–3 E of Ouin rd jct [= road junction], -22.03710 166.49570, 800 m, rainforest, 6 Dec. 2010, R. Ruta and M. Wanat leg. ( USMB); 2 specimens, Mt Ouin Rd, km 0– 0.5 N of Dzumac jct, -22.03180 166.46740, 900 m, 4 Dec. 2010, R. Ruta and M. Wanat leg. ( USMB); 5 specimens, Montagne des Sources [-22.12227 166.59613], 650–700 m, gallery forest, on Zygogynum bicolor Van Tiegh. flowers, 24 Nov. 1976, L.B. Thien leg. ( BPBM).

Taxonomic notes

Arsipoda geographica is, along with A. gressitti sp. nov. and A. shirleyae , one of the yellowish species lacking external morphological characters that allow a reliable identification, even though A. geographica generally displays elytral interstriae slightly more convex ( Fig. 6B View Fig ); pronotal antebasal sulcus more deeply impressed ( Fig. 6B View Fig ); elytral suture and lateral margin often darkened ( Fig. 1G View Fig ). These species can be distinguished by relying on the morphology of genitalia ( Figs 8 View Fig H–I, 9I, 11G–H, O).

Median lobe of aedeagus ( Fig. 8H View Fig ) in ventral view thickset, laterally parallel, apically widely rounded, with a thin median tooth laterally parallel and apically truncate; ventral surface with a deep median groove in the middle third; in lateral view median lobe distinctly curved; dorsal ligula short, from half length to pre-apical part of median lobe of aedeagus, triangular, with wide base. Spermatheca ( Fig. 11G View Fig ) with large, pyriform basal part; collum elongate, thickset and wrinkled; apical part distinctly shorter than collum; ductus short, thin, apically inserted.

Biometry

Male (n = 10; mean and standard deviation; range): LE = 1.96 ± 0.09 mm (1.85 Ĺ LE Ĺ 2.10 mm); WE = 1.28 ± 0.07 mm (1.18 Ĺ WE Ĺ 1.40 mm); LP = 0.58 ± 0.04 mm (0.54 Ĺ LP Ĺ 0.65 mm); WP = 0.93 ± 0.05 mm (0.85 Ĺ WP Ĺ 1.03 mm); LAN = 1.71 ± 0.08 mm (1.60 Ĺ LAN Ĺ 1.83 mm); LAED = 1.03 ± 0.03 mm (0.99 Ĺ LAED Ĺ 1.09 mm); LB = 2.77 ± 0.13 mm (2.56 Ĺ LB Ĺ 2.94 mm); LE/LP = 3.38 ± 0.15 (3.13 Ĺ LE/LP Ĺ 3.68); WE/WP = 1.38 ± 0.03 (1.34 Ĺ WE/WP Ĺ 1.45); WP/LP = 1.60 ± 0.08 (1.46 Ĺ WP/ LP Ĺ 1.75); WE/LE = 0.65 ± 0.02 (0.63 Ĺ WE/LE Ĺ 0.67); LAN/LB = 0.62 ± 0.02 (0.58 Ĺ LAN/LB Ĺ 0.64); LE/LAED = 1.91 ± 0.05 (1.84 Ĺ LE/LAED Ĺ 1.99).

Female (n = 10; mean and standard deviation; range): LE = 2.02 ± 0.06 mm (1.95 Ĺ LE Ĺ 2.15 mm); WE = 1.33 ± 0.07 mm (1.28 Ĺ WE Ĺ 1.48 mm); LP = 0.59 ± 0.04 mm (0.55 Ĺ LP Ĺ 0.68 mm); WP = 0.95 ± 0.04 mm (0.90 Ĺ WP Ĺ 1.05 mm); LAN = 1.54 ± 0.06 mm (1.48 Ĺ LAN Ĺ 1.68 mm); LSPc = 0.20 ± 0.01 mm (0.19 Ĺ LSPc Ĺ 0.22 mm); LB = 2.82 ± 0.15 mm (2.69 Ĺ LB Ĺ 3.16 mm); LE/LP =

3.42 ± 0.12 (3.19 Ĺ LE/LP Ĺ 3.59); WE/WP = 1.39 ± 0.03 (1.32 Ĺ WE/WP Ĺ 1.44); WP/LP = 1.62 ± 0.06 (1.56 Ĺ WP/LP Ĺ 1.71); WE/LE = 0.66 ± 0.02 (0.64 Ĺ WE/LE Ĺ 0.69); LAN/LB = 0.55 ± 0.02 (0.53 Ĺ LAN/LB Ĺ 0.59); LE/LSPc = 9.93 ± 0.38 (9.32 Ĺ LE/LSPc Ĺ 10.61).

Distribution

Southern Grande Terre ( Fig. 14A View Fig ).

Ecological notes

Collected in montane maquis, moss forest, rainforest, and gallery forest, mostly from 800 to 1400 m a.s.l. Found on flowers of Zygogynum bicolor (Winteraceae) . Gómez-Zurita et al. (2010) report molecular evidence associating this species with the genus Ardisia ( Myrsinaceae ; following the APG III Classification, this family is now included within the Primulaceae ). Pollen found in the gut of some specimens.