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Taxonomic notes on the ground beetles in the genus Trephionus Bates, 1883 from central Honshu, Japan (Coleoptera, Carabidae, Sphodrini, Synuchina).


ABSTRACT: Trephionus Bates, 1883, a Japanese endemic genus in the subtribe Synuchina (Coleoptera, Carabidae, Sphodrini), is revised taxonomically based mainly on the shape of the endophallus, a membranous inner sac everted from the aedeagus of the male genitalia. Three known species from central Honshu, T. kinoshitai Habu, 1954; T. shibataianus Habu, 1978; and T. babai Habu, 1978, are re-defined based on this genital character, and five new species are described from the region: T. cylindriphallus Sasakawa, sp. n., T. niumontanus Sasakawa, sp. n., T. inexpectatus Sasakawa & Itô, sp. n., T. abiba Sasakawa & Itô, sp. n., and T. bifidilobatus Sasakawa & Itô, sp. n. The observed interspecies differences in endophallus morphology are discussed in terms of the species-level phylogeny and genus-level taxonomy of Trephionus.

SUBMITTER: Sasakawa K 

PROVIDER: S-EPMC5904455 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Taxonomic notes on the ground beetles in the genus <i>Trephionus</i> Bates, 1883 from central Honshu, Japan (Coleoptera, Carabidae, Sphodrini, Synuchina).

Sasakawa Kôji K   Itô Hirotarô H  

ZooKeys 20180312 742


<i>Trephionus</i> Bates, 1883, a Japanese endemic genus in the subtribe Synuchina (Coleoptera, Carabidae, Sphodrini), is revised taxonomically based mainly on the shape of the endophallus, a membranous inner sac everted from the aedeagus of the male genitalia. Three known species from central Honshu, <i>T. kinoshitai</i> Habu, 1954; <i>T. shibataianus</i> Habu, 1978; and <i>T. babai</i> Habu, 1978, are re-defined based on this genital character, and five new species are described from the region  ...[more]

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