A review of the powderpost beetle genera Xylothrips Lesne, 1901 and Calophagus Lesne, 1902 (Coleoptera: Bostrichidae: Bostrichinae: Xyloperthini)

Abstract

This paper reviews the genera Xylothrips Lesne, 1901 and Calophagus Lesne, 1902, and their species, and proposes that Calophagus should be reinstated as a full genus from a subgenus of Xylothrips (contra Borowski & Węgrzynowicz 2019). The genera and their included species are diagnosed and redescribed, and a summary of information on the distribution and biology of all species is provided. The importance of characters of the antennal club and pronotum in separating the two genera is stressed. A key to the two genera and the two species of Xylothrips is provided.

The Oriental genera of Xyloperthini (Coleoptera: Bostrichidae: Bostrichinae), with a new genus and species from Thailand, and a key to the genera

“…Following a series of revisions of genera of the tribe Xyloperthini (Liu et al 2016;Liu & Beaver 2017, 2021Liu 2021a), this study added to the profile of the Oriental fauna, and provided baseline information for a large further study project, which will revise the interesting tribe Xyloperthini.…”

“…Lesne (1921 formally erected the tribe Xyloperthini Lesne, 1921 to include those genera with a lamelliform intercoxal process of the first abdominal ventrite. The tribe Xyloperthini is the most species-rich in the Bostrichidae, and currently includes 35 genera (Borowski & Węgrzynowicz 2007;Ivie 2010;Park et al 2015;Liu et al 2016;Liu & Beaver 2017;Liu 2021a;Zhang et al 2022).…”

“…The tribe has a worldwide distribution, but the individual genera are mostly confined to a single zoogeographical region or subregion (Morrone 2002;Borowski & Węgrzynowicz 2007;Beaver et al 2011;Holt et al 2013;Sittichaya et al 2013;Park et al 2015;Liu et al 2016Liu et al , 2021Liu & Beaver 2017;Borowski 2018;Liu 2021aLiu , 2021bZhang et al 2022), with the Oriental region having the most genera-rich fauna, and the African region the most species-rich fauna.…”