Taxonomic revision of the Lycocerus hanatanii species group (Coleoptera, Cantharidae), with the description of new species from Taiwan

Abstract

Abstract. The Lycocerus hanatanii species group is revised, with the addition of seven taxa:

Review of the Lycocerus pallidulus group (Coleoptera, Cantharidae), with descriptions of six new species from China

“…Based on our studies and Wang et al (2023) , we found that L. pallidulus group definitely differs from L. maculicollis group in the shape of aedeagus, which is unique in the latter group noted previously by Kazantsev (1999) . In addition, the former L. maculicollis group has already been suggested as a non-monophyletic ( Hsiao 2021 ; Xi et al 2022 ; Wang et al 2022 ). Thus, we suggest L. pallidulus group be treated as an independent species group.…”

“… Lycocerus Gorham, 1889 sensu Okushima (2005) is one of the largest genera in Cantharidae , with more than 300 species worldwide ( Liu et al 2022 ). No subgenera could be defined in the genus ( Okushima 2005 ), but 16 species-groups have been proposed to date ( Okushima 2005 ; Okushima and Brancucci 2008 ; Okushima and Yang 2013 ; Yang et al 2014 ; Hsiao and Okushima 2015 , 2016 ; Hsiao et al 2016 ; Okushima and Hsiao 2017 , 2021 ; Xi et al 2021a , b , 2022 ; Wang et al 2022 ). Among these species-groups, L. maculicollis group was proposed by Okushima (2005) , originally contained three subgroups, including L. ryukyuanus subgroup, L. maculicollis subgroup and L. pallidulus subgroup.…”

“…This species-group was characterized by median lobe of male genitalia without dorsal process, short spermathecal duct, spermatheca with one spiral tube which is relatively short and stout and gradually expanded to the base ( Okushima 2005 ). However, the monophyly of L. maculicollis group was frequently not recovered, with the L. pallidulus subgroup in a distant position from L. maculicollis subgroup in the morphological phylogenetic trees ( Hsiao 2021 ; Wang et al 2022 ; Xi et al 2022 ).…”