Arsipoda agalma Samuelson, 1973

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 : 7-8

Arsipoda agalma Samuelson, 1973

Figs 1A , 4A , 8 A–B, 11A, 14A

Arsipoda agalma Samuelson, 1973: 128 .

Arsipoda agalma – Gómez-Zurita et al. 2010: 2560 .

Type material examined

NEW CALEDONIA: holotype ³, Mt Panié, [-20,58860 164,77020], 500–1000 m, 11 Oct. 1967, J. & M. Sedlacek leg. ( BPBM).

New material

NEW CALEDONIA: 1 specimen, Col d’Amieu (3.0 km to gate), -21.58536 165.79319, 500 m, 16 Nov. 2008, M. Wanat ( MNHW); 2 specimens, Parc des Grandes Fougères, N of Pic Vincent, -21.5962 165.77650, 650 m, at night, 5 Nov. 2010, M. Wanat & R. Ruta leg. ( MNHW); 1 specimen, Haute Rivière Bleue, 22°05' S 166°38' E, 180–330 m, track to La Tranchée, 22–23 Jan. 2004, M. Wanat leg. ( MNHW); 1 specimen, ditto, La Tranchée-Sentier des Kaoris, 22°05' S 166°38' E, 280–330 m, humid forest, 28 Jan. 2004, M. Wanat leg. ( MNHW); 1 specimen, Riviere Bleue Parc, 1 km E of scient. Refuge, 22°05.9' S 166°39.2' E, 185 m, humid forest, 22 Dec. 2006, R. Dobosz & M. Wanat leg. ( USMB); 1 specimen, Mt Panié, E trail, -20.5886 164.7702, 1350–1629 m, rainforest, 24 Nov. 2010, M. Wanat & R. Ruta leg. ( MNHW).

Taxonomic notes

Arsipoda agalma is quite different from the other species, mainly for the deep and elongate frontal grooves, generally continued to post-antennal region, and the weakly convex pronotum, with very large and strongly impressed punctures on disc ( Fig. 4A ). Median lobe of aedeagus variable ( Figs 8 A–B): in ventral view laterally generally parallel, or slightly narrower in apical third, with a thin median groove; apex from triangular to strongly pointed; in lateral view median lobe from thin to rather thickset, moderately curved; dorsal ligula elongate – from basal fourth to almost the apex of median lobe of aedeagus – wide, but thinner in apical part. Spermatheca ( Fig. 11A ) with rounded basal part; collum elongate, about twice the apical part; ductus thin, with straight and elongate proximal part.

Biometry

Male (n = 6; mean and standard deviation; range): LE = 2.17 ± 0.22 mm (1.95 Ĺ LE Ĺ 2.55 mm); WE = 1.41 ± 0.14 mm (1.28 Ĺ WE Ĺ 1.65 mm); LP = 0.60 ± 0.05 mm (0.53 Ĺ LP Ĺ 0.68 mm); WP = 1.06 ± 0.10 mm (0.98 Ĺ WP Ĺ 1.24 mm); LAN = 2.08 ± 0.18 mm (1.80 Ĺ LAN Ĺ 2.28 mm); LAED = 1.16 ± 0.08 mm (1.07 Ĺ LAED Ĺ 1.27 mm); LB = 3.02 ± 0.29 mm (2.75 Ĺ LB Ĺ 3.50 mm); LE/LP = 3.60 ± 0.16 (3.39 Ĺ LE/LP Ĺ 3.78); WE/WP = 1.32 ± 0.01 (1.31 Ĺ WE/WP Ĺ 1.34); WP/LP = 1.77 ± 0.08 (1.67 Ĺ WP/ LP Ĺ 1.86); WE/LE = 0.65 ± 0.01 (0.63 Ĺ WE/LE Ĺ 0.66); LAN/LB = 0.68 ± 0.06 (0.61 Ĺ LAN/LB Ĺ 0.75); LE/LAED = 1.89 ± 0.09 (1.79 Ĺ LE/LAED Ĺ 2.01).

Female (n = 5; mean and standard deviation; range): LE = 2.34 ± 0.19 mm (2.18 Ĺ LE Ĺ 2.65 mm); WE = 1.57 ± 0.16 mm (1.45 Ĺ WE Ĺ 1.83 mm); LP = 0.63 ± 0.04 mm (0.60 Ĺ LP Ĺ 0.70 mm); WP = 1.15 ± 0.11 mm (1.05 Ĺ WP Ĺ 1.33 mm); LAN = 1.83 ± 0.28 mm (1.53 Ĺ LAN Ĺ 2.23 mm); LSPc = 0.21 ± 0.02 mm (0.20 Ĺ LSPc Ĺ 0.23 mm); LB = 3.16 ± 0.30 mm (2.88 Ĺ LB Ĺ 3.59 mm); LE/LP = 3.72 ± 0.09 (3.62 Ĺ LE/LP Ĺ 3.80); WE/WP = 1.36 ± 0.02 (1.33 Ĺ WE/WP Ĺ 1.38); WP/LP = 1.82 ± 0.09 (1.72 Ĺ WP/ LP Ĺ 1.92); WE/LE = 0.67 ± 0.02 (0.64 Ĺ WE/LE Ĺ 0.69); LAN/LB = 0.58 ± 0.04 (0.52 Ĺ LAN/LB Ĺ 0.62); LE/LSPc = 10.93 ± 0.61 (10.24 Ĺ LE/LSPc Ĺ 11.62).

Distribution

Northern, Central and Southern Grande Terre ( Fig. 14A ).

Ecological notes

Collected in humid forest and rainforest, from 180 m to over 1350 a.s.l. No information is available about host plants. Pollen found in the gut of some specimens.

Figures

Fig. 1. Habitus. A. Arsipoda agalma Samuelson, 1973, Mt Panié. B. A. atra sp. nov, Aoupinié. C. A. communis sp. nov, Mt Do. D. A. doboszi sp. nov, Haute Rivière Bleue. E. A. elongata sp. nov, Mt Humboldt. F. A. evax Samuelson, 1973, Koghi Mts. G. A. geographica Gómez-Zurita, 2010, Haute Rivière Bleue. H. A. gressitti sp. nov., Farino. I. A. isola Samuelson, 1973, Bois du Sud.

Fig. 4. Head and pronotum. A. Arsipoda agalma Samuelson, 1973, Col d’Amieu. B. A. communis sp. nov., Dzumac Mts. C. A. doboszi sp. nov, Haute Rivière Bleue. D. A. isola Samuelson, 1973, Mont Do. E. A. montana sp. nov., Mt Humboldt. F. A. paniensis sp. nov., Mont Panié. Abbreviations: ats = antebasal transverse sulcus; fg = frontal grooves; ld = lateral dimples; pr = postantennal region.

Fig. 8. Median lobe of aedeagus in lateral (l), ventral (v) and dorsal (d) view. A–B. Arsipoda agalma Samuelson, 1973. A. Mt Paniè. B. Col d’Amieu. C. A. atra sp. nov., Aoupinié. D. A. communis sp. nov., Mt Do. E. A. doboszi sp. nov., Haute Rivière Bleue. F. A. elongata sp. nov., Mt Humboldt. G. A. evax Samuelson, 1973, Koghi Mts. H. A. geographica Gómez-Zurita, 2010, Haute Rivière Bleue. I. A. gressitti sp. nov., Farino.

Fig. 11. Female genitalia. A–S. Spermatheca. A. Arsipoda agalma Samuelson, 1973, N of Pic Vincent. B. A. atra sp. nov., Aoupinié. C. A. communis sp. nov., Dzumac Mts. D. A. doboszi sp. nov., Mt Do. E. A.elongata sp. nov., Mt Humboldt. F. A. evax Samuelson, 1973, Chagrin. G. A. geographica Gómez- Zurita, 2010, Mt Humboldt. H. A. gressitti sp. nov., Farino. I. A. isola Samuelson, 1973, Bois du Sud. J. A. longifrons sp. nov., Humboldt S track. K. A. paniensis sp. nov., Mt Panie. L. A. povilaensis sp. nov., Pic d’Amoa, Povila.M. A. rostrata Gómez-Zurita, 2010, Dzumac Road.N. A. rutai sp. nov.Dzumac Road. O. A. shirleyae Samuelson, 1973, Haute Rivière Bleue. P. A. transversa sp. nov., Mt Koghi. Q. A. wanati sp. nov., Mt Humboldt. R. A. yiambiae Samuelson, 1973, Yiambi. S. A. gomezzuritai sp. nov., Dzumac Mts. T. Tignum (t) and vaginal palpi (vp) of A. communis sp. nov., Mt Do. Abbreviations: a = appendix; ap = apical part; bp = basal part; c = collum or neck; d = ductus; LSPc = length of spermathecal capsule; SPc = spermathecal capsule = ap + c + bp.

Fig. 14. Distributions of New Caledonian Arsipoda. A. Arsipoda agalma Samuelson, 1973, A. evax Samuelson, 1973, A. geographica Gómez-Zurita, 2010, A. isola Samuelson, 1973 and A. rutai sp. nov. B. A. atra sp. nov., A. communis sp. nov., A. montana sp. nov., A. paniensis sp. nov. and A. rostrata Gómez-Zurita, 2010.