Synaldotrema Belokobylskij & Tobias, 2002

Peris-Felipo, Francisco Javier, Santa, Fernando, van Achterberg, Cornelis & Belokobylskij, Sergey A., 2025, Review of the genera and subgenera of the subtribe Aspilotina (Hymenoptera, Braconidae, Alysiinae), with a new illustrated key, ZooKeys 1229, pp. 133-200 : 133-200

Genus Synaldotrema Belokobylskij & Tobias, 2002 , stat. nov.

Synaldotrema Belokobylskij & Tobias, 2002: 3 (as subgenus of Dinotrema Foerster); Belokobylskij and Tobias 2007: 11; van Achterberg and Vikberg 2014: 3; Yu et al. 2016.

Type species.

Dinotrema (Synaldotrema) speciosum Belokobylskij & Tobias, 2002 , by original designation (Figs 28 , 29 ).

Material examined.

Holotype ( Dinotrema (Synaldotrema) speciosum ) Russia: • ♀, Primorskiy kray, 10 km SSW of Partizansk , border of forest, 12–13. vii. 1996 (S. Belokobylskij) ( ZISP) . Paratypes ( Dinotrema (Synaldotrema) speciosum ) Russia: • ♀, Primorskiy kray, 50 km N of Olga , mixed forest, 29. vii. 1979 (S. Belokobylskij) ( ZISP) ; • ♀, Primorskiy kray, Pogranichnyi District, Barabash-Levada , forest, 3–6. vi. 1980 (S. Belokobylskij) ( ZISP) ; • ♀, Primorskiy kray, 42 km S of Plastun , forest, 24. vi. 1979 (S. Belokobylskij) ( ZISP) ; • ♀, Republic of Tuva, 14 km E of Kyzyl , lowland of Ka Khem River, 31. v. 1975 (D. Kasparyan) ( ZISP) .

Diagnosis.

Synaldotrema Belokobylskij & Tobias shares the main characters of Dinotrema sensu stricto but differs by having the hypopygium of the female strongly retracted under the posterior tergites of metasoma and the fourth tergite strongly elongated, ~ 2.5 × longer than fifth tergite (vs approximately of equal length in Dinotrema s. str.).

Remarks.

The type species of Synaldotrema ( D. speciosum Belokobylskij & Tobias, 2002 ) has a variable vein 2 - SR of the fore wing. This vein is usually present, but sometimes, mostly discoloured and its posterior half or sometimes entire vein 2 - SR is absent ( Belokobylskij and Tobias 2002). Previous studies showed that the value of the reduction of this vein illustrates well the subgeneric division ( Belokobylskij and Tobias 2002), however the current diagnostic character study proved that retraction of hypopygium has enough value to consider Synaldotrema as a valid genus.

Figures

Figure 28. Synaldotrema speciosum Belokobylskij & Tobias, 2002, comb. nov. (holotype, female) A habitus, lateral view B head and mesosoma, lateral view C mandible D antenna E head, front view F head and mesonotum, dorsal view.

Figure 29. Synaldotrema speciosum Belokobylskij & Tobias, 2002, comb. nov. (holotype, female) A propodeum B legs, metasoma and ovipositor, lateral view C first metasomal tergite, dorsal view D fore and hind wings.