Stenodynerus steckianus (von Schulthess, 1897)

Zeng, Xin, Chen, Bin & Li, Ting-Jing, 2024, The genus Stenodynerus de Saussure, 1863 (Hymenoptera: Vespidae: Eumeninae) from China: a new species, new records, and key to the species, Zootaxa 5514 (4), pp. 385-400 : 393-394

Stenodynerus steckianus (von Schulthess, 1897)

( Figs 40–46 )

Odynerus dentisquama var. steckianus von Schulthess, 1897: 90 , ♂ (lectotype, ♂, deposited in Swiss Federal Institute of Technology , Zurich; type locality: “bei Biel ” [Zürich, Switzerland]); van der Vecht & Fischer 1972: 69 (syn. of S. teutonicus )

Odynerus teutonicus Blüthgen, 1937: 43 , ♀ ♂ (in subgenus Lionotus ) (holotype ♀, deposited in Museum Berlin, type locality: “Himmelreich bei Bad Kösen” [Berlin, Germany]); Gusenleitner 1981: 209, 226 (syn. of S. steckianus )

Nannodynerus teutonicus : Blüthgen 1951: 169; 1952: 2; 1953: 5; 1961: 70, 107, 108, 110, 114, 119; Blüthgen & Königsmann 1969: 929.

Stenodynerus teutonicus : van der Vecht & Fischer 1972: 69 (cat.).

Stenodynerus steckianus : Gusenleitner 1981: 216, 226 (syn. O. teutonicus ); Tussac 2007: 296; Fateryga 2010: 77; 2017: 190; Amolin & Artokhin 2014: 12.

Material examined. China: 1♀, Xinjiang Autonomous Region, Bortala Prefecture, Bole City , 45°7′44″N, 81°43′8″E, 25. VII.2023, Tingjing Li ( CNU) .

Diagnosis. Female and male. Body length: female 7.5–9.0 mm, male 7.0–8.0 mm; black, following parts ivory white ( Fig. 40 ): interantennal spot on lower frons, a small spot on the upper gena, two small separated spots on pronotum anteriorly, apical bands on T1–T2, and largely interrupted apical band on S2; following parts ferruginous: tegula, parategula, legs largely; clypeus in male yellow. Cephalic foveae small and shallow, its width less than the distance between posterior ocelli; clypeus wider than long in both sexes, clypeus in female with denser punctures than male ( Fig. 41 ); anterior surface of pronotum almost vertical, with a few punctures, median foveae V-shaped, pronotal carina interrupted medially ( Fig. 42 ); propodeum medially without a transverse plane behind metanotum ( Fig. 43 ); T1 less than 2× as wide as long; apical border of T2 barely depressed ( Figs 44, 45 ); anterior surface of S2 sloping, in lateral view S2 rounded ( Fig. 44 ), S2 with sparser punctures than T2, ventrally in basal portion without a median longitudinal furrow ( Fig. 46 ).

Distribution. * China (Xinjiang), Portugal, Spain, France, Germany, Switzerland, Italy, Austria, Hungary, Bulgaria, Albania, Greece, Turkey, Ukraine, Azerbaijan, Kazakhstan, Russia (European Part, Urals) (von Schulthess 1897; Blüthgen 1937, 1951, 1952, 1953, 1961; Blüthgen & Königsmann 1969; van der Vecht & Fischer 1972; Kurzenko 1978; Gusenleitner 1981; Amolin & Artokhin 2014; Fateryga 2010, 2017).

Figures

FIGURES 40–46. Stenodynerus steckianus, ♀. 40. Habitus, dorsal view. 41. Head, frontal view. 42. Pronotum, dorsal view. 43. Propodeum, dorsal view. 44. Metasomal segments 2–6, lateral view. 45. T1–T6, dorsal view. 46. S2–S6, ventral view.