Empria tridens (Konow, 1896)

Prous, Marko, Heidemaa, Mikk, Akihiko, Shinohara & Soon, Villu, 2011, Review of the sawfly genus Empria (Hymenoptera, Tenthredinidae) in Japan, ZooKeys 150, pp. 347-380 : 361

Empria tridens (Konow, 1896)

Poecilosoma (Poecilosoma) tridens Konow, 1896: 54, 58. Type locality: Europe "Europa fere tota" [original description]. Lectotype female (designated in Prous et al. 2011b), DEI [examined].

Empria (Empria) caucasica Dovnar-Zapolskij, 1929: 38-39. Synonymy according to Conde (1940), see Prous et al. (2011b) for details.

Empria (Triempria) konowi Dovnar-Zapolskij, 1929: 39-40. Type locality: Russia, Sarepta. Lectotype female (designated in Prous et al. 2011b), ZISP [examined].

Empria (Triempria) gussakovskii Dovnar-Zapolskij, 1929: 40-41. Type locality: Russia, Kostroma District. Lectotype female (designated in Prous et al. 2011b), ZISP [examined].

Taxonomic affinities.

Belongs to Empria longicornis group. Morphologically the closest species is Empria longicornis , from which it can be distinguished in most cases by shorter antennae and more pairs of pale patches on abdominal terga (4 large and 1 small in Empria tridens , on terga 2-6; 3 large and 1 small in Empria longicornis , on terga 2-5), and by its less prominent serrulae (Fig. 22; http://www.morphbank.net/?id=578850).

Host plants.

Rubus idaeus and possibly Rubus fruticosus complex ( Prous et al. 2011b).

Distribution.

Palaearctic. Specimens studied are from Belgium, Croatia, Denmark, Estonia, Finland, France, Germany, Hungary, Japan (Hokkaido), Mongolia, Russia (Amur Oblast, Kamchatka Krai, Kostroma Oblast, Leningrad Oblast, Primorsky Krai, Sakhalin Oblast, Stavropol Krai, Volgograd Oblast), Sweden, Switzerland, Turkey, Ukraine, and United Kingdom.