Intybia kawasakii ( Nakane, 1956 )

Ikeda, Hiroshi & Yoshitomi, Hiroyuki, 2017, Revision of the genus Intybia (Coleoptera, Malachiidae) from Japan, European Journal of Taxonomy 331, pp. 1-31 : 27-28

Intybia kawasakii ( Nakane, 1956)

[Japanese name: Okinawa-obi-jôkai-modoki]

Figs 1H , 2H , 4H , 5H , 11A

Laius kawasakii Nakane, 1956: 162 [type locality: Hedozaki, Kunigamison, Okinawa].

Laius kawasakii – Nakane 1957: 14, fig.5. — Nakane 1963: 186, pl. 93, fig. 18. — Satô 1985: 165. — Nakane 1983: 164. — Satô 1989: 366.

Intybia kawasakii – Wittmer 1997: 191. — Mayor 2007: 417 [catalogued]. — Yoshitomi & Hayashi 2011: 19.

Diagnosis

Elytra with a pale yellow transverse fascia narrowly interrupted at suture, just before the middle; male antennomere III ear-like shaped.

Type material examined

Holotype

JAPAN: ♂, [Hedozaki, Kunigamison , Okinawa, 13 Jun. 1955, R. KAWASAKI.] ( SEHU).

Paratypes

JAPAN: 3 ♀♀, same data as for the holotype ( SEHU).

Redescription

Male

Body ( Fig. 1H ) oblong oval, shining, sparsely covered with gray pubescence. Coloration of head, pronotum and elytra black; antennae yellow, but apical 6 or 7 segments black; elytral fascia pale yellow, narrowly interrupted at suture; legs yellow; base of femora dark; hind femur and tibia black.

Head densely punctate; eyes normal, prominent; HL/HW 0.58. Antennae ( Fig. 4H ) long, reaching base of elytra; antennomere I long and stout; antennomere III ear-like shaped, deeply concave in dorso-mesal portion; L/W = 1.77; approximate ratio of each antennomere (n = 1) as 5.60: 1.00: 8.48:1.16: 1.24: 1.24: 1.40: 1.60: 1.24:1.60: 2.40. Pronotum transverse, sparsely punctured in middle, densely so in lateral and posterior parts; PL/PW 1.17. Elytra oblong-ovate, a little broader than prothorax, then gently dilated to behind middle, sparsely punctate; EL/EW 1.51; EL/PL 2.70; EW/ PW 1.52; TL/EW 2.43. Male genitalia not examined.

Female

Similar to male in general appearance ( Fig. 2H ); coloration of antennae yellow, with apical 5 or 6 segments black; HL/HW 0.64–0.76 (0.70); PW/PL 1.13–1.18 (1.15); EL/EW 1.50–1.65 (1.57); EL/PL 2.71–2.82 (2.78); EW/PW 1.45–1.61 (1.54); TL/EW 2.48–2.66 (2.54). Antennae ( Fig. 5H ) long; antennomere III distinctly expanded laterally, shallowly concave in dorsal portion; L/W = 2.07; approximate ratio of each antennomere (n = 1) as 7.11: 1.00: 5.00:2.24: 2.24: 2.11: 1.97: 2.18:2.19: 2.37: 3.42.

Measurements

Male(n=1):TL 3.04mm; HL 0.45 mm; HW 0.77mm; PW 0.82 mm; PL 0.7mm; EL 1.89 mm; EW 1.25mm.

Female (n = 3): TL 3.60–3.90 (3.79) mm; HL 0.58–0.63 (0.61) mm; HW 0.83–0.90 (0.88) mm; PW 0.90–1.00 (0.9) mm; PL 0.80–0.87 (0.84) mm; EL 2.17–2.45 (2.34) mm; EW 1.45–1.57 (1.49) mm.

Distribution ( Fig. 11A )

Japan (Okinawa-jima).

Remarks

This species is rare and no additional specimens besides the type series have been collected. This species was recorded from Kyushu by Satô (1989) and Yoshitomi & Hayashi (2011), but we regard this as a simple mistake.

Biological notes

The type series was collected from the northernmost cape of the island, and this species probably inhabits beach plant communities.

Figures

Fig. 1. Dorsal habitus Intybia spp., ♂. A. Intybia histrio (Kiesenwetter, 1874). B. I. tsushimensis (Satô & Ohbayashi, 1968). C. I. donan sp. nov., holotype. D. I. pelegrini pelegrini (Pic, 1910). E. I. niponica (Lewis, 1895). F. I. takaraensis (Nakane, 1955). G. I. kishiii (Nakane, 1955). H. I. kawasakii (Nakane, 1956), holotype. Scales = 1.0 mm.

Fig. 2. Dosal habitus of Intybia spp., ♀. A. Intybia histrio (Kiesenwetter, 1874). B. I. tsushimensis (Satô & Ohbayashi, 1968). C. I. donan sp. nov., paratype. D. I. pelegrini pelegrini (Pic, 1910). E. I.niponica (Lewis, 1895). F. I.takaraensis (Nakane, 1955).G. I. kishiii (Nakane, 1955). H. I. kawasakii (Nakane, 1956), paratype. Scale bars = 1.0 mm.

Fig. 4. Right antennae of Intybia spp., ♂. A. Intybia histrio (Kiesenwetter, 1874). B. I. tsushimensis (Satô & Ohbayashi, 1968). C. I. donan sp. nov. D. I. pelegrini pelegrini (Pic, 1910). E. I. niponica (Lewis, 1895). F. I. takaraensis (Nakane, 1955). G. I. kishiii (Nakane, 1955). H. I. kawasakii (Nakane, 1956). Scale bars = 0.2 mm.

Fig. 5. Right antennae of Intybia spp., ♀. A. Intybia histrio (Kiesenwetter, 1874). B. I. tsushimensis (Satô & Ohbayashi, 1968). C. I. donan sp. nov. D. I. pelegrini pelegrini (Pic, 1910). E. I. niponica (Lewis, 1895). F. I. takaraensis (Nakane, 1955). G. I. kishiii (Nakane, 1955). H. I. kawasakii (Nakane, 1956). Scale bars = 0.2 mm.

Fig. 11.Map showing thedistribution of Intybia spp.A.The histriogroup:●:Intybia histrio(Kiesenwetter, 1874), ▲: I. tsushimensis (Satô & Ohbayashi, 1968), ■: I. donan sp. nov.). B. The pelegrini group: ○: I. pelegrini (Pic, 1910), △: I. niponica (Lewis, 1895), □: I. takaraensis (Nakane, 1955), ×: I. kishiii (Nakane, 1955), +: I. kawasakii (Nakane, 1956).