Genus Bicladodrilus Pic, 1921

Bicladodrilus Pic, 1921a: 15. Gender: masculine. Type species. Bicladodrilus bakeri Pic, 1921; by monotypy.

Bieladodrilus: Pic 1923: 62 [unavailable name, incorrect subsequent spelling not in prevailing usage].

Bicalodrilus: Pic 1930b: 320 [unavailable name, incorrect subsequent spelling not in prevailing usage].

Literature.

Pic (1921a: 15): original description; Pic (1923: 62): species description [as Bieladodrilus [sic!]]; Pic (1930b: 320): remark [as Bicalodrilus [sic!]], key; Wittmer (1941: 197): catalogue, distribution; Wittmer (1944: 211): catalogue; Bocakova et al. (2007: 484): molecular phylogeny; Hunt et al. (2007: suppl.): molecular phylogeny; Bocak et al. (2008: 2019): molecular phylogeny; Levkanicova and Bocak (2009: 214): molecular phylogeny; Costa and Zaragoza-Caballero (2010: 134): remark; Kawashima et al. (2010: 139): book chapter; Kundrata and Bocak (2011a: 57): remark; Kundrata and Bocak (2011b: 370): molecular phylogeny; Kundrata et al. (2013: 202): molecular phylogeny; Kundrata et al. (2014: 167): molecular phylogeny; Bocak et al. (2016: suppl.): molecular phylogeny; Kovalev and Kirejtshuk (2016: 205): remark; Kundrata et al. (2016: 296): molecular phylogeny; Bocak et al. (2018: 4): molecular phylogeny; Kundrata et al. (2019: 1263): molecular phylogeny; Liu et al. (2020: 46): remark. In addition to the aforementioned literature, this genus was included in PhD theses by Jeng (2008) and Roza (2022).

Remarks.

This genus currently contains two described species from the Philippines and Vietnam, respectively. The generic assignment of a specimen reported as " Bicladodrilus sp." from China, which was used in the molecular phylogenetic analyses by Bocakova et al. (2007), Bocak et al. (2008, 2018), Levkanicova and Bocak (2009), and other studies, needs a careful re-examination. Bicladodrilus is similar to Bicladum and Diplocladon in having strongly bipectinate antennae and long elytra. This generic complex is in need of revision.