Acanosema (Acanosema) nervosum (Тhоmsоn, 1858)

Chemyreva, V. G. & Kolyada, V. A., 2021, Review of the subtribe Psilommina (Hymenoptera: Diapriidae, Belythinae) from Russian fauna, Far Eastern Entomologist 436, pp. 1-34 : 17

Acanosema (Acanosema) nervosum (Тhоmsоn, 1858)

Figs 2 , 40–48

Cinetus nervosus Тhоmsоn, 1858: 165 .

MATERIAL. Moldova: Kotovskoe , 4. VI 1967, 3 ♂ , V. Tobias ; Vilenevka, 6 . VI

1967, 2 ♂, V. Tobias; Strasheni , 5.VI 1967 , 3 ♂, V. Tobias. Ukraine: Odessa

Prov., Lisne Vill., Staromanzyrs’kyy Zakaznyk, 13.VI 1974, 1 ♂, D. Kasparyan;

Kherson Prov., Askania-Nova National Reserve , 19.VI 1967, 1 ♂, V. Tobias .

Russia: Republic of Crimea : Prokhladnoe Vill., Selbukhra Mt., 6. VI 1995, 1 ♀, V .

Kolyada ( ZMUM); Karadag, 6–8. VI 1990, 1 ♀, D. Kasparyan; same locality, 9. VI

1990, 1 ♀, A. Kotenko; Novgorodskaya oblast : Tychkino Vill., 4–17.VI 1998 , 1 ♀,

2 ♂, V . Tobias ; Leningradskaya oblast: 4 km W of Krasnitsy, MT, 5–30.VII 2007 ,

2 ♀, 1 ♂, D. Kasparyan; Moskovskaya oblast: vicinity of Stupino, 25.VII 1993 and

6.VIII 1995, 1 ♀, 1 ♂, V. Kolyada ( ZMUM); Stavropolsky krai: Shpakovsk

[ Mikhaylovsk], 7–18.VI 1988, 1 ♀, 8 ♂, S. Belokobylskij; Kirovskaya oblast :

Bolsheromanovo Vill., 4–10.VIII 1994, 1 ♀, 4 ♂, V . Kolyada; Sverdlovskaya oblast : N. Tagil, 3.VIII 1971, 1 ♂ , Vinokurov; Baranchinskiy, 10.VII 1976, 1 ♂,

Potapova; Republic of Buryatia: Dungui Vill., 8–9.VIII 1970, 1 ♂, D. Kasparyan ;

Sakhalinskaya oblast: Sakhalin Island, Shmidta Peninsula, 30 km N of Okha Mt.,

11.VIII 2003, 2 ♂, A. Lelej; Kuril Islands, Urup, Kama River, 7.VIII 2000, 1 ♂, A.

Lelej; Primorsky krai: Shkotovskiy Distr, Khualaza Mt [Krinichnaya Mt], 1200 m,

17.VIII 1972, 1 ♀, V. Kuslitzky. Abkhazia: Bzipi River , 43.363916˚ N ,

40.495772˚ E, 11–14.VIII 2015, 2 ♀, V. Chemyreva ; Lashipse River, 43.491564˚

N, 40.661648˚ E, 7–8.VIII 2015, 1 ♀, 1 ♂, V. Chemyreva. Azerbaijan: Lenkoran ,

3–7. V 1971 , 2 ♀, V. Tobias; Hirkan National park , 16. VI 2009, 1 ♀, 1 ♂, K.

Tomkovich. All in ZISP if not stated otherwise.

VARIATION. Both sexes: head and mesosoma black to brown; marginal vein slightly shorter than distance from marginal vein to basal vein to 0.5 times as long as it; anterior scutellar pit transverse to subcircular. Female: body length 2.7–3.6;

A12–A14 from elongate to transverse. Male: body length 2.2–3.8; petiole cylindrical to distinctly swollen medially, 0.6–0.8 times as wide as long; A4 with keel extending to 0.4–0.5 of this segment length.

DISTRIBUTION. United Kingdom, Norway, Sweden, Italy, Czech Republic,

Poland, Slovakia, Hungary, Hercegovina, * Moldova, * Ukraine, * Russia (European part, Western and Eastern Siberia, Far East), *Abkhazia, * Azerbaijan.

Figures

Figs 1–4. Mesosoma, lateral view: 1 – Acanopsilus heterocerus; 2 – Acanosema nervosum;