Intybia donan, Ikeda & Yoshitomi, 2017

Ikeda, Hiroshi & Yoshitomi, Hiroyuki, 2017, Revision of the genus Intybia (Coleoptera, Malachiidae) from Japan, European Journal of Taxonomy 331, pp. 1-31 : 18-20

publication ID

https://doi.org/ 10.5852/ejt.2017.331

publication LSID

lsid:zoobank.org:pub:3FD5D922-B91F-42BB-9D7B-7DFB98841732

DOI

https://doi.org/10.5281/zenodo.3848088

persistent identifier

https://treatment.plazi.org/id/DCD7FF92-1188-40E9-8AE9-94BE4CA028B7

taxon LSID

lsid:zoobank.org:act:DCD7FF92-1188-40E9-8AE9-94BE4CA028B7

treatment provided by

Carolina

scientific name

Intybia donan
status

sp. nov.

Intybia donan sp. nov.

urn:lsid:zoobank.org:act:DCD7FF92-1188-40E9-8AE9-94BE4CA028B7

[Japanese name: Yotsu-mon-obi-jôkai-modoki]

Figs 1C View Fig , 2C View Fig , 4C View Fig , 5C View Fig , 6C, H View Fig , 9C View Fig , 10C View Fig , 11A View Fig , 12 View Fig C–D

Diagnosis

Elytra with four pale yellow spots; antennomere I long, abruptly widened from near the middle; antennomere III ginkgo-like shaped, two concavities on outer edge and provided with a slender tonguelike projection near base; gonoporal piece gently curved, constricted near the middle; semi-gonoporal piece slightly curved; ligula long, slightly curved; spinous plate absent.

Etymology

After the old name of the type locality Yonaguni-jima.

Material examined

Holotype

JAPAN: ♂, Mantabaru-shinrinkôen , Yonaguni-chô, Yaeyama-gun, 24°27′31.77′′ N, 122°58′31.31′′ E, 4 May 2016, H. Ikeda leg. ( EUMJ).

GoogleMaps

Paratypes

JAPAN: 2 ♂♂, 1 ♀, same data as for the holotype ( EUMJ); 3 ♂♂, same data as for the holotype, but 30 Apr. 2016, N. Tsuji leg. ( NTJ); 2 ♀♀, same data as for the holotype, but 30 Apr. 2016, H. Ikeda leg. ( EUMJ); 2 ♂♂, same data as for the holotype, but 29 Apr. 2015, Y. Ogata leg. ( YOJ); 1 ♂, Tarumai ( LT), Yonaguni-jima, 10 Sep. 2004, Shiho and Koji Arai leg. ( EUMJ); 1 ♂, Yonaguni-jima, Urabu-dake, 28 Apr. 1993, Y. Kaneko leg. ( EUMJ); 1 ♀, Yonaguni-jima, Tokorono, 13 May 1974, H. Hiramatsu leg. ( KUM).

Description

Male

Body ( Fig. 1C View Fig ) oblong oval, shining, densely covered with yellow pubescence, and sparsely covered with long erect hairs. Coloration of head, pronotum and elytra black; antennae, two pairs of elytral spots, and legs pale yellow.

Head sparsely and minutely punctate; eyes moderately prominent; HL/HW 0.51–0.79 (0.63). Antennae ( Fig. 4C View Fig ) long, nearly reaching base of elytra; antennomere I long, abruptly widening from middle onwards; antennomere III ( Fig. 6C View Fig ) ginkgo-leaf shaped, with two concavities on outer edge, with a slender tongue-like projection near base; L/W = 1.53; approximate ratio of each antennomeres (n = 1) as 8.3: 1.0: 9.7: 2.3: 2.7:3.3:3.3: 3.3: 3.3: 3.7: 6.3. Pronotum slightly broader than long, sparsely and minutely punctate; PW/PL 1.07–1.27 (1.18). Elytra oblong-ovate, slightly broadened posteriorly, somewhat densely punctate; two large and oval pairs of elytral spots; EL/EW 1.22–1.48 (1.39); EL/PL 2.58–3.14 (2.77); EW/PW 1.48–1.82 (1.69); TL/EW 2.02–2.56 (2.27). Aedeagus about 0.48 mm in AL. Gonoporal piece ( Fig. 10C View Fig ) gently curved, constricted from near the middle 0.23 mm in GL; GL/AL 0.48. Semi-gonoporal piece slightly curved, 0.19 mm in SGL. Ligula long slightly curved, 0.05 mm in LL. Spinous area ( Fig. 9C View Fig ) bearing short spines, lacking spinous plate.

Female

Similar to male in general appearance ( Fig. 2C View Fig ); HL/HW 0.52–0.60 (0.57); PW/PL 1.08–1.18 (1.15); EL/EW 1.34–1.43 (1.40); EL/PL 2.73–3.04 (2.94); EW/PW 1.78–1.92 (1.83); TL/ EW 2.08–2.23 (2.18). Antennae ( Fig. 5C View Fig ) long; antennomere III distinctly expanded laterally, shallowly concave in dorsal portion, L/W = 1.78; approximate ratio of each antennomere (n = 1) as 6.3: 1.0: 4.0:2.3: 2.5: 2.5: 2.8: 2.8: 2.8:2.8: 4.8.

Measurements

Male (n = 10): TL 2.23–2.52 (2.40) mm; HL 0.32–0.46 (0.39) mm; HW 0.57–0.67 (0.62) mm; PW 0.60–0.67 (0.63) mm; PL 0.50–0.58 (0.53) mm; EL 1.31–1.62 (1.48) mm; EW 0.89–1.20 (1.06) mm.

Female (n = 4): TL 2.46–2.88 (2.66) mm; HL 0.32–0.42 (0.37) mm; HW 0.62–0.70 (0.66) mm; PW 0.62–0.73 (0.67) mm; PL 0.53–0.62 (0.58) mm; EL 1.61–1.84 (1.70) mm; EW 1.12–1.30 (1.22) mm.

Distribution ( Fig. 11A View Fig )

Only known from the type locality, Yonaguni-jima of Japan.

Remarks

This species is distinct in having a small body and four elytral spots. It is similar to Intybia viridithorax ( Pic, 1921) in the shapes of antenna and male genitalia ( Wittmer 1997), and differs from the latter by the coloration of the elytra with four spots ( I. viridithorax has fascia).

Biological notes

This species is rare, inhabits forest edges ( Fig. 12C View Fig ), can be collected from the flowers of Ardisia sieboldii Miquel and Meliosma oldhamii Miquel ex Maximowicz ( Fig. 12D View Fig ), and can be collected from shrubs and bushes by sweeping, beating, and light traps.

EUMJ

Ehime University

LT

Université de Montréal

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Melyridae

Genus

Intybia

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF