Euconnus (Euconnus) nanashi Hoshina

Jałoszyński, Paweł, 2022, Euconnus Thomson of Japan: redescriptions of species established by Reitter, Sharp and Franz, new synonyms, and summary of current state of knowledge (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 5093 (1), pp. 1-37 : 27

Euconnus (Euconnus) nanashi Hoshina

Euconnus nanashi Hoshina, 2019a: 56 .

Euconnus (Euconnus) nanashi Hoshina ; here placed in Euconnus s. str.

Remarks. This species is known to occur on the Ryukyuan Yakushima Island, and it is also a member of the E. fustiger group. The type series included two males, and the body length of this species, ranging from 1.39 to 1.41 mm, falls within the size of E. fustiger .

Hoshina (2019a) stated that E. nanashi is similar to E. matsunoyamensis , but differs in “having the relatively large body (about 1.4 mm) and median lobe of aedeagus projected upwardly in lateral view”, vs. E. matsunoyamensis having a “relatively small body (about 0.9 mm) and the median lobe projected ventrally in lateral view” (not clear what difference in the median lobe in lateral view the author meant). Even though the illustrated aedeagus is distorted (as can be seen by comparing the illustration in ventral and dorsal views, which differ markedly in the silhouette of the median lobe), the shape of the dorsal apical projection seems unique among Japanese Euconnus species , and may allow for species identification when new specimens are found and correctly prepared aedeagi are compared.

Hoshina (2019a) did not place this species in any subgenus. As all other members of E. fustiger group, E. nanashi belongs in Euconnus s. str.