Tmesiphorus LeConte, 1849

Inoue, Shota, Maruyama, Munetoshi & Nomura, Shûhei, 2019, Revision of the genus Tmesiphorus LeConte, 1849 (Coleoptera: Staphylinidae: Pselaphinae) from Japan, Zootaxa 4646 (1), pp. 67-86 : 68

Genus Tmesiphorus LeConte, 1849

Tmesiphorus LeConte, 1849: 75 . Type species: Pselaphus carinatus Say, 1824 , subsequent designation by Lucas, 1920: 643.

Glyptosoma Motschulsky, 1851 . Type species: Glyptosoma paulinae by original monotypy.

Sintectes Westwood, 1870 . Type species: Sintectes carinatus Westwood (= Tmesiphorus westwoodi Raffray ), by original monotypy.

Syntectes Jeannel, 1949: 203 (misspelling)

Note. A detailed synonymic list was provided by Chandler (2001)

Diagnosis. Members of this genus are easily distinguished from the other pselaphine species by the following character states: body large and stout; antennae thick; apical three segments of antennae enlarged to form variously sized club in male; maxillary palpi asymmetrical; second and third segments with penicillate spine on outer margin; fourth segment with rounded lobe on outer margin and conical shaped projection at apex; legs with protibiae arcuate and thickened at middle; apex of each tibia with dense yellow setae; tarsal claws paired; abdomen with visible tergites IV–VIII, with paratergites; tergite V longest.

Among the Japanese pselaphine genera, Tmesiphorus is very similar in general appearance to Raphitreus Sharp, 1883 , but is readily distinguished from it by the combination of larger body, segment IV of the maxillary palpi with a rounded lobe on the outer margin.