Taxonomic history

Apate dispar Fabricius, 1792: 363.

Anisandrus dispar (Fabricius): Ferrari, 1867: 24.

Xyleborus dispar (Fabricius): Hagedorn, 1910b: 98.

Anisandrus dispar (Fabricius): Hulcr et al., 2007: 578.

Synonyms

Bostrichus thoracicus Panzer, 1793: 34. Synonymy: Hagedorn 1910b: 102.

Scolytus pyri Peck, 1817: 207. Synonymy: Hubbard, 1897: 22; Swaine 1918: 124.

Bostrichus tachygraphus Sahlberg, 1836: 152. Synonymy: Eichhoff 1876b: 378.

Bostrichus ratzeburgi Kolenati, 1846: 39. Synonymy: Ferrari 1867: 27.

Xyleborus ishidai Niisima, 1909: 156. Synonymy: Smith et al. 2018b: 393.

Anisandrus aequalis Reitter, 1913: 81. Synonymy: Knížek 2011: 242.

Anisandrus swainei Drake, 1921: 203. Synonymy: Wood 1957: 403.

Xyleborus dispar rugulosus Eggers, 1922: 17. Synonymy: Schedl 1964d: 314.

Xyleborus cerasi Eggers, 1937: 335. Synonymy: Schedl 1964c: 220.

Xyleborus khinganensis Murayama, 1943: 100. Synonymy: Knížek 2011: 242.

Diagnosis

3.1−3.5 mm long (mean = 3.4 mm; n = 5); 2.27−2.5 times as long as wide. This species can be distinguished by the mesonotal mycangial tuft disperse, mesonotal mycangial tuft the length of the scutellum; declivital interstriae uniseriate granulate; discal interstriae with 2–3 confused rows of punctures; declivital interstriae 1 slightly raised, interstriae 2 and 3 even; declivital face smooth, shining; and interstrial setae erect, 1.5 times the width of an interstria.

May be confused with

Anisandrus maiche, A. paragogus, Xylosandrus dentipennis, X. eupatorii, and X. germanus

Distribution

Europe and North Africa, through Russia and Central Asia to China (Heilongjiang, Shaanxi), North Korea, and Japan. Introduced to Canada and USA (Wood 1977; Gomez et al. 2018a).

Host plants

polyphagous, attacking both angiosperms and conifers (Wood and Bright 1992, Beaver et al. 2014)

Remarks

The biology of the species is described by Palm (1959), Chararas (1962), Egger (1973), and French and Roeper (1975). Speranza et al. (2009) examine the effects of temperature and rainfall on flight activity. Like many xyleborines, the species is attracted to ethanol (Saruhan and Akyol 2012, Galko et al. 2014). It is an important pest of hazel (Corylus avellana) (Betulaceae) in the Mediterranean area (e.g. Bucini et al. 2005, Saruhan and Akyol 2012) and an occasional pest of fruit trees in the USA (Wood 1982).

DNA data

Sequences available for COI and CAD.

COI: GU808699.1

CAD: GU808622.1