Megarhyssa rixator (Schellenberg, 1802)

Varga, A., 2014, A Review Of The Subfamily Rhyssinae (Hymenoptera, Ichneumonidae) From The Ukrainian Carpathians, Vestnik Zoologii 48 (1), pp. 27-34 : 29

Megarhyssa rixator (Schellenberg, 1802) ( fig. 1 ; 3 , 2 )

M a t e r i a l. Ukraine: Ivano-Frankivsk Region: Bogorodchany District , Mochary, 48°50ʹ51.17ʹʹ N, 24°35ʹ26.91ʹʹ E, 300–350 m, mixed forest, 5 km NE of Bogorodchany , 5.05.2012, 4 ♂, 1 ♀, 6.05.2012, 5 ♂, 3 ♀, 12.05.2011, 1 ♂, 12.05.2012, 1 ♂, 2 ♀, 31.05.2011, 3 ♀, 31.05.2012, 1 ♀; Dibrova, 48°46ʹ10.35ʹʹ N, 24°30ʹ20.28ʹʹ E, 310 m, oak forest, 5 km SW of Bogorodchany , 19.05.2011, 1 ♀, 10– 11.05.2012, 1 ♂, 1 ♀; Zhbyr, 48°47ʹ4.92ʹʹ N, 24°28ʹ46.45ʹʹ E, 400 m, mixed forest, 7–8 km SW of Bogorodchany , 26.05.2012, 1 ♂, 19.05.2013, 2 ♂, TT, 15– 31.05.2013, 2 ♂; Gorgany, 48°36ʹ54.56ʹʹ N, 24°09ʹ54.27ʹʹ E, 1050–1100 m, 4 km SW of Stara Guta , 4.06.2012, 4 ♂, 8– 9.06.2012, 30 ♂, 1.07.2012, 1 ♀; Nadvirna District , Gorgany, Elmy, 48°24ʹ39.50ʹʹ N, 24°24ʹ50.28ʹʹ E, 800–900 m, coniferous forest, 15 km SW of Yaremche , 14.07.2011, 1 ♀, 20– 23.06.2012, 1 ♀, 8.06.2013, 2 ♂; Chornogora, 48°08ʹ09.63ʹʹ N, 24°32ʹ32.14ʹʹ E, 1600 m, coniferous forest, 11.07.2013, 3 ♂ ( Varga ) .

C o l o r a t i o n. F e m a l e. Generally body colour as in Rhyssa persuasoria , but white marks also on mesoscutum. Legs generally red, all coxae and hind femora varying from red to brown, sometimes with yellow spots, hind tibiae and tarsi fuscous. Propodeum and metasoma entirely smooth and polished. OTI 8.0–9.0

M a l e. Body colour as in female, but metasoma usually entirely black, with at most two white spots on tergite I.

R e m a r k. From other species of the genus, M. rixator differs in the black clypeus, mesosoma and metasoma and in the structure of the male parameres (see Horstmann, 1998).

D i s t r i b u t i o n. Palaearctic: Austria, Czech Republic, Germany, Poland, Switzerland, Russia (Chita, Tula and Yaroslavl Regs); Ukraine.

Figures

Fig. 1. Female of Megarhyssa rixator boring into the wood of dead Picea abies. Рис. 1. Cамка Megarhyssa rixator, которая сверлит отверстие в стволе мертвой Picea abies.

Fig. 3. The clypeus: 1 — Rhyssa amoena; 2 — Megarhyssa rixator. Рис. 3. Наличник: 1 — Rhyssa amoena; 2 — Megarhyssa rixator.

Fig. 2. Tereskhinʹs trap in coniferous forest.