Ochthebius (Ochthebius) aff. yoshitomii Jäch et Delgado, 2014

Sazhnev, A. S., 2018, New records of water beetles (Coleoptera: Helophoridae, Hydrophilidae, Hydraenidae) from Commander Islands, Far Eastern Entomologist 365, pp. 26-30 : 28

Ochthebius (Ochthebius) aff. yoshitomii Jäch et Delgado, 2014

Figs 8–10

MATERIAL EXAMINED. Russia: Kamchatka krai, Aleutsky District, Commander

Islands, Bering Island, Vkhodnoy Rif cape, coast of Pacific Ocean, in the cracks of the rocks,

26. VI 2015, 3 exs. (coll. A.S. Sazhnev); Toporkov Island , coast of Pacific Ocean, in the cracks of the rocks , 1. VII 2015, 7 exs. (coll. A.S. Sazhnev).

NOTES. Specimens from Commander Archipelago are identified by us as Ochthebius yoshitomii , which belong Ochthebius vandykei species group (Jäch & Delgado, 2014), but probably the populations from Commander Islands belong to a new undescribed species. All specimens of O. yoshitomii were collected in littoral zone in the cracks of the rocks ( Figs 8–

10) together with endemic to Commander Archipelago Aegialites beringensis Zerche, 2004

(Salpingidae) (Sazhnev, 2015).

DISTRIBUTION. Russia (Kuril Islands: Kunashir Island, Paramushir Island; Commander

Islands: Bering Island, Toporkov Island); Japan (Hokkaido Island, northern part of Honshu

Island) (Jäch & Delgado, 2014; Prokin et al., 2015).

Figures

Fig. 8–10. Habitat of Ochthebius yoshitomii on the Commander Islands. 8 – Toporkov Island (coast of Pacific Ocean); 9, 10 – Bering Island (Vkhodnoy Rif cape, coast of Pacific Ocean).