Georissus (Georissus) crenulatus (P. Rossi, 1794)

Sazhnev, A. S. & Prokin, A. A., 2017, Georissidae (Coleoptera: Hydrophiloidea) – a new beetle family for the fauna of Mongolia, Far Eastern Entomologist 347, pp. 22-24 : 23

Georissus (Georissus) crenulatus (P. Rossi, 1794)

Fig. 1

MATERIAL EXAMINED. Mongolia: Dzabkhan Aymag, vicinities of Dörvöljin sum,

coast of Dzabkhan River , 47°37′28.43″N, 95°00′36.84″E, 28.VIII 2017, 20 ex. (coll. A.S.

Sazhnev & A.A. Prokin).

NOTES. All specimens were collected at a distance of 2–5 meters from water edge line

( Fig. 2 ) on sandy-gravel substrate on the shore of Dzabkhan River (at elevations up to 1 400

m a.s.l.) together with Saldidae , Carabidae ( Bembidion , Dyschiriodes ) and Heteroceridae

(Augyles). All beetles were covered by drift.

DISTRIBUTION. Mongolia (new record). – Europe from Norway to Caucasus, Trans-

caucasia, Israel, Kazakhstan, Russia (West and East Siberia, Russian Far East) (Litovkin &

Sazhnev, 2012; Fikáček & Przewoźny, 2015).

♂; 2 – immature specimen, ♀; 3 – aedeagus, dorsal view.

Figures

Fig. 1. Habitus of Georissus crenulatus, Dörvöljin, Mongolia. 1 – normal specimen,

Fig. 2. Habitat of Georissus crenulatus in Mongolia, coast of Dzabkhan River.