Euconnus (Euconnus) kojiroi Hoshina
Euconnus (Euconophron) kojiroi Hoshina, 2004a: 17 .
Euconnus (Eupentarius) kojiroi Hoshina; Jałoszyński, 2021a: 156, implied, by placing Euconophron as junior synonym of Eupentarius.
Euconnus (Euconnus) kojiroi Hoshina; here placed in Euconnus s. str.
Remarks. This species is known to occur in Honshu, and it belongs to the E. fustiger group. It was described as reaching the body length 1.9 mm, which seems to be distinctly more than in E. fustiger, E. iouzensis, and E. raucus . Unfortunately, the aedeagus illustrated by Hoshina (2004a: figs 4‒6) is distorted, the ventral apical plate is strongly flipped ventrad and consequently the endophallus is also displaced. Comparisons with intact aedeagi are difficult or not possible and so are comparisons with apparently similar species that belong in the E. fustiger group. Status of this species remains unclear. See also remarks for E. takachihoi, E. miyatai, E. sayakai, and E. itsuki .
Hoshina (2004a) placed this species in the subgenus Euconophron (currently a junior synonym of Eupentarius). However, E. kojiroi does not show diagnostic characters of this subgenus, and its placement is here corrected to Euconnus (s. str.).