Arsipoda punctata, 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 : 36-37

Arsipoda punctata sp. nov.

urn:lsid:zoobank.org:act:8176244E-DFAF-4B0E-9639-9F9BA3CB5BD8

Figs 2E , 5B , 6D , 9F , 15B

Diagnosis

Arsipoda punctata sp. nov. is an easily distinguishable small, yellow species with a strongly punctate pronotum. Species with similar strong punctuation ( A. isola and A. rutai sp. nov.) are very different in color: bronze, metallic in the case of A. isola , and very dark with greenish metallic lustre in A. rutai sp. nov.; moreover, the pronotal punctuation is unevenly sized in A. isola . Genitalia are also clearly different ( Figs 9A, F, H , 11I, N ).

Etymology

The specific epithet is a Latin adjective referring to the strong pronotal punctuation.

Type material

Holotype

NEW CALEDONIA: ³, Mueo , [-21.310337 165.020997], 20 May 1928, J.D.A. Cockerell leg. ( BMNH).

Paratypes

NEW CALEDONIA: 4 ³³, same data as the holotype ( BMNH).

Description of the holotype (³)

Body slightly convex ( Fig. 2E ); LB = 1.95 mm; maximum pronotal width at base (WP = 0.74 mm); maximum elytral width at basal third (WE = 0.98 mm). Dorsum yellowish, slightly metallic. Frons and vertex strongly punctate, with microreticulate surface; head grooves short, not continued to postantennal region; genae and frontal carina very short; antennae slightly longer than ½ body length ( LAN = 1.18 mm; LAN/LB = 0.61), yellow; LA: 100:56:44:56:78:78:78:78:89:78:100. Pronotum slightly trapezoidal, distinctly transverse (LP = 0.45 mm; WP/LP = 1.64), laterally straight ( Fig. 5B ); anterior angles weakly prominent, obliquely beveled; antebasal transverse sulcus moderately impressed, weakly sinuate; lateral fovea almost indistinguishable; pronotal punctuation large, strongly impressed, dense, evenly distributed on the irregularly microreticulate surface. Elytra moderately elongate (LE = 1.48 mm; WE/LE = 0.66), laterally slightly arcuate; punctuation clearly impressed; interstriae microreticulate and micropunctulate.

Legs yellow; first pro- and mesotarsomeres slightly dilated; adhesive setae present on ventral side of first pro-, meso- and, partially, metatarsomeres. Venter brownish; last abdominal ventrite laterally clearly incised, without special pre-apical impressions. Median lobe of aedeagus (LAED = 0.74 mm; LE/LAED = 2.01) ( Fig. 9F ) in ventral view thickset, tapered toward base, apically subtruncate, with median rounded small

tooth; ventral surface with complete, shallow ventral sulcus, wider at apical ¾; in lateral view, median lobe slightly curved, gradually thinner toward apex; dorsal ligula elongate, narrow, tapered toward apex.

Biometry

Male (n = 5; mean and standard deviation; range): LE = 1.52 ± 0.10 mm (1.40 Ĺ LE Ĺ 1.66 mm); WE = 0.99 ± 0.06 mm (0.90 Ĺ WE Ĺ 1.08 mm); LP = 0.45 ± 0.03 mm (0.40 Ĺ LP Ĺ 0.48 mm); WP = 0.75 ± 0.05 mm (0.68 Ĺ WP Ĺ 0.82 mm); LAN = 1.22 ± 0.07 mm (1.12 Ĺ LAN Ĺ 1.30 mm); LAED = 0.77 ± 0.02 mm (0.74 Ĺ LAED Ĺ 0.79 mm); LB = 2.05 ± 0.19 mm (1.85 Ĺ LB Ĺ 2.97 mm); LE/LP = 3.58 ± 0.15 (3.38 Ĺ LE/LP Ĺ 3.83); WE/WP = 1.47 ± 0.05 (1.42 Ĺ WE/WP Ĺ 2.35); WP/LP = 1.67 ± 0.03 (1.64 Ĺ WP/LP Ĺ 1.71); WE/LE = 0.65 ± 0.01 (0.64 Ĺ WE/LE Ĺ 0.66); LAN/LB = 0.60 ± 0.03 (0.54 Ĺ LAN/ LB Ĺ 0.64); LE/LAED = 1.99 ± 0.08 (1.88 Ĺ LE/LAED Ĺ 2.09). Paratypes (³) very similar in shape, sculpture and color to the holotype.

Female unknown.

Distribution

Endemic to Mueo area, Central Grande Terre ( Fig. 15B ).

Figures

Fig. 2. Habitus. A. Arsipoda longifrons sp. nov, Humboldt S track. B. A. montana sp. nov, Mt Humboldt. C. A. paniensis sp. nov, Mt Panié. D. A. povilaensis sp. nov, Pic d’Amoa. E. A. punctata sp. nov., Mueo. F. A. rostrata Gómez-Zurita, 2010, Koghi Mts. G. A. rutai sp. nov, Poro Plateau. H. A. shirleyae Samuelson, 1973, S Humboldt. I. A. transversa sp. nov., Mt Koghi.

Fig. 5. Head and pronotum. A. Arsipoda povilaensis sp. nov, Pic d’Amoa. B. A. punctata sp. nov., Mueo. C. A. rutai sp. nov., Dzumac Mts. D. A. transversa sp. nov., Mt. Koghi. E. A. wanati sp. nov., Mt Humboldt. F. A. yiambiae Samuelson, 1973, Yiambi.

Fig. 6. A–C. Elytra. A. Arsipoda atra sp. nov., Aoupinié. B. A. geographica Gómez-Zurita, 2010, Dzumac Mts (base). C. A. shirleyae Samuelson, 1973, Chute de la Madeleine. D. Prosternum of A. punctata sp. nov., Mueo. E. Hind tibia and tarsus of A. communis sp. nov., Dzumac Mts (1) and A. shirleyae Samuelson, 1973, Pic du Pin (2). F. Metafemoral spring of A. communis sp. nov., Dzumac Mts. Abbreviations: ae = apical emargination with thickset spines; asp = apical spur of hind tibia; ba = basal angle of ventral lobe; dba = dorsal-basal angle of metafemoral spring; dl = dorsal lobe; dmv = dorsal margin of ventral lobe; ea = extended arm of dorsal lobe; fm = first metatarsomere; ht = hind tibia; pas = prosternal antecoxal space; pc = procoxal cavities posteriorly open (arrows); pip = prosternal intercoxal process; rf = recurve flange; sbe = spring basal edge; vl = ventral lobe.

Fig. 9. Median lobe of aedeagus in lateral (l), ventral (v) and dorsal (d) view. A. Arsipoda isola Samuelson, 1973, Bois du Sud. B. A. longifrons sp. nov., Humboldt S track. C. A. montana sp. nov., Mt Humboldt. D. A. paniensis sp. nov., Mt Panié. E. A. povilaensis sp. nov., Pic d’Amoa, Povila. F. A. punctata sp. nov., Mueo. G. A. rostrata Gómez-Zurita, 2010, Koghi Mts. H. A. rutai sp. nov. Poro Plateau. I. A. shirleyae Samuelson, 1973, S Humboldt.

Fig. 15. Distributions of New Caledonian Arsipoda. A. Arsipoda elongata sp. nov., A. gressitti sp. nov., A. longifrons sp. nov., A. shirleyae Samuelson, 1973, A. transversa sp. nov. and A. yiambiae Samuelson, 1973. B. A. doboszi sp. nov., A. povilaensis sp. nov., A. punctata sp. nov., A. wanati sp. nov. and A. gomezzuritai sp. nov.

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.