Taxonomy of ' Euconnus complex'. Part XXIV. Intermediate forms between Psomophus, Eupentarius and Euconnus s. str. in the East Palaearctic fauna unify problematic subgenera (Coleoptera, Staphylinidae, Scydmaeninae) Author Jałoszyński, Paweł text Zootaxa 2022 2022-10-06 5194 3 343 391 journal article 160068 10.11646/zootaxa.5194.3.2 37029023-13d3-4f8b-aa2f-675882e19a2f 1175-5326 7154500 92DCC339-93BA-4C64-8035-7940F10F26DC 2. Euconnus rectitibia , species sola One new Japanese species described below as E. rectitibia is externally similar to E. debilis and allied species, but males do not have any protibial modifications, and its aedeagus is of a clearly different form, in ventral view drop-shaped, with median elongate and darkly sclerotized endophallic structure situated near middle of the bulbous portion of the median lobe. Moreover, the antennae, including also trimerous clubs, are much slenderer than those in the Euconnus callidus species group. Because of close external similarity to species of the Euconnus callidus group, this interesting taxon is treated here.