Diuncus mucronatus (Eggers, 1923)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.983.52630

publication LSID

lsid:zoobank.org:pub:7DED4CE2-934C-4539-945F-758930C927F9

persistent identifier

https://treatment.plazi.org/id/F0D96056-45F2-DA57-A4AD-2FE3B9EE5DC4

treatment provided by

ZooKeys by Pensoft

scientific name

Diuncus mucronatus (Eggers, 1923)
status

 

Diuncus mucronatus (Eggers, 1923) Fig. 50G, H, L View Figure 50

Xyleborus mucronatus Eggers, 1923: 191.

Diuncus mucronatus (Eggers): Hulcr and Cognato 2009: 34.

Type material.

The holotype was destroyed in the bombing of UHZM in World War II ( Wood and Bright 1992).

New records.

China: Guizhou, Guiyang, Huaxi, 25.x.2015, Y. Li, ex trap baited with ipsenol + EtOH (MSUC, 1). Hong Kong, Tai Po Kau, vi.2017, J. Skelton (MSUC, 4). Jiangsu, Nanjing, Laoshan National Park, Bacai Road, 32.09156N, 118.583701E, 15.viii.2017, Cognato, Li, Gao, ex Populus (MSUC, 2). Vietnam: Cao Bang, 22°34.118'N, 105°52.537'E, 1048 m, 12.iv.2014, VN13, Cognato, Smith, Pham, ex large felled Pinus sp. (MSUC, 1).

Diagnosis.

2.0-2.5 mm long (mean = 2.26 mm; n = 5); 2.33-2.78 × as long as wide. This species is distinguished by the elytral summit armed by two pairs of large denticles, one pair on interstriae 2 and the other on interstriae 3; pronotum longer than wide; declivity appearing strongly bisulcate; declivital interstriae 1 and 3-6 clearly convex giving the declivity a rugged appearance.

Similar species.

Diuncus haberkorni , D. mucronatulus , D. quadrispinulosus .

Distribution.

China* (Guizhou*, Hong Kong*, Jiangsu*), Indonesia (Java), Japan, East & West Malaysia, New Guinea, Philippines, Thailand, Vietnam*.

Host plants.

Polyphagous ( Browne 1961b).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Diuncus

Loc

Diuncus mucronatus (Eggers, 1923)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I. 2020
2020
Loc

Xyleborus mucronatus

Eggers 1923
1923