Taxonomic history

Xyleborus bodoanus Reitter, 1913: 82.

Cyclorhipidion bodoanum (Reitter): Bussler and Immler, 2007: 5.

Synonyms

Xyleborus punctulatus Kurentzov, 1948: 52Knížek, 2011: 245.

Xyleborus californicus Wood, 1975b: 399. Knížek, 2011: 245.

Xyleborus misatoensis Nobuchi, 1981a: 146. Smith et al. 2020b: 182.

Diagnosis

1.7−2.2 mm long (mean = 2.03 mm; n = 4); 2.76−3.14 times as long as wide. This species is distinguished by the short, steep declivity that is approximately 25% of total elytral length, armed with large tubercles on interstriae 1 and 3, interstriae 2 always unarmed; posterolateral margins rounded; and declivital interstriae 1 and 2 setae uniseriate.

May be confused with

This species is a part of a challenging species group consisting of C. distinguendum, C. inarmatum, C. pelliculosum, C. tenuigraphum, and C. xeniolum. They can be most readily separated using Smith et al. (2020b) table 1:

species

declivital interstriae 1 setae

declivital interstriae 2 setae

lateral profile of declivity

declivital interstriae 2 granulate

 total length (mm)

xeniolum

uniseriate

uniseriate

obliquely truncate

unarmed

1.65−1.8

bodoanum

uniseriate

uniseriate

steeply rounded

unarmed

1.7−2.2

inarmatum

2 rows, confused

uniseriate

steeply rounded

unarmed

2.8−3.0

tenuigraphum

2 rows, confused

2 rows, confused

steeply rounded

often on apical third

2.7−3.0

pelliculosum

3 rows, confused

uniseriate

steeply rounded

unarmed

3.2−3.5

distinguendum

3 rows, confused

2 rows, confused

steeply rounded

unarmed

2.5−3.1

 

Distribution

China (Fujian, Heilongjiang, Hong Kong, Guizhou, Jiangxi, Yunnan), Japan, Laos, South & North Korea, Russia (Far East), Taiwan, Thailand, Vietnam. Introduced to Europe, USA (Wood 1975; Vandenberg et al. 2000; Kirkendall and Faccoli 2010; Gomez et al. 2018a).

Host plants

Like a number of other species of Cyclorhipidion, the species has a clear preference for trees in the family Fagaceae, and most records are from Quercus, with rare attacks on Castanea (Bussler and Immler 2007). Also recorded from Pinus (Pinaceae) and Populus (Salicaceae) (Lightle et al. 2007).

Remarks

McPherson et al. (2008) note that the species attacks Quercus previously attacked by pathogenic fungi, resulting in the spread of decay fungi and increased tree mortality.

DNA data

Sequences available for COI and CAD.

COI: GU808697MN619885

CAD: MN199590