Euodynerus (Pareuodynerus) posticus (Herrich-Schaeffer, 1841)

Selis, Marco, Fateryga, Alexander V. & Cilia, Giovanni, 2024, The genus Euodynerus Dalla Torre in Europe and the Maghreb (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5537 (2), pp. 151-194 : 177

Euodynerus (Pareuodynerus) posticus (Herrich-Schaeffer, 1841)

( Figs 12H, K ; 14M ; 15G, P, S, U ; 16B )

Odynerus posticus Herrich-Schaeffer, 1841: 176 , pl. 9, ♀ — type locality not stated (type destroyed).

Odynerus innumerabilis de Saussure, 1853: 154 (key), 189, ♂ (in subgenus Leionotus ) — “L’Algérie” (MNHN).

Odynerus graphicus de Saussure, 1853: 155 (key), 191, ♀ (in subgenus Leionotus ) — “ Le midi de la France ” (MNHN).

Odynerus differens Morawitz, 1895: 478 , ♂, ♀ (in subgenus Lionotus ) — [ Georgia and Azerbaijan] “ Transcaucasia : Lagodechy; Zakataly ” (syntypes ZISP [examined]).

Odynerus cephalicus Blüthgen, 1944: 32 , 34, ♂ (in subgenus Pareuodynerus ) — “Argentat (Dept. Corrèze, Südfrankreich)” (MNHN).

Pseudepipona postica punctatissima Giordani Soika, 1952: 382 , ♂ (in subgenus Euodynerus ) — “ Anatolia, Gyaur daglari” (NMPC).

Euodynerus posticus posticus var. notatiformis Blüthgen, 1955a: 155 , ♀ (in subgenus Pareuodynerus ) — “Sasso-Furbara (Lazio)” (ZMB). Unavailable name according to Art. 45.5 of ICZN (1999), because originally described as infrasubspecific name.

Euodynerus posticus punctatissimus var. nahariensis Blüthgen, 1955b: 28 , ♂, ♀ (in subgenus Pareuodynerus ) — “Nahariya (10 km. N. of Acre)” (holotype female ZMB). Unavailable name according to Art. 45.5 of ICZN (1999), because originally described as infrasubspecific name.

Distribution. Mainly Western Palaearctic, ranging from the Iberian Peninsula and the Maghreb in the West to the Caucasus and Iran in the East ( Fateryga et al. 2019). Ma et al. (2017) include E. posticus in their key to the Chinese Euodynerus species, but in fact it was never recorded from the Eastern Palaearctic.

Notes. The available genetic data show a certain level of substructuring in Euodynerus posticus , with an eastwest gradient ( Fig. 10 ): the specimens from the western Mediterranean (Iberian Peninsula and Maghreb) differ by 2.29% from ones from the Italian Peninsula and by 6.06% from the eastern ones, while the Italian ones differ by 3.75% from the eastern ones. The genetic distances are low and not associated with obvious morphological differences, confirming E. posticus as a species with a wide Palaearctic distribution.

Figures

FIGURE 10. Phylogenetic tree (Neighbor-Joining) of Euodynerus (Pareuodynerus) based on the mitochondrial COI gene. Ancistrocerus gazella (Panzer) was used as an outgroup. Numbers adjacent to branches represent bootstrap support (values of <75 are omitted); only the species occurring in the considered area are highlighted. Countries are abbreviated using ISO 3166-1 alpha-2 codes.

FIGURE 12. A–G, Euodynerus notatus (Jurine). A, E, male from Hungary. B, F, female from Altai, Russia. C, G, female from Krasnodar Territory, Russia. D, male from Nizhny Novgorod Province, Russia. H–K, E. posticus (Herrich-Schaeffer). H, J, male from Italy. I, female from Crimea, Russia. K, female from Italy.

FIGURE 14. Male genitalia, from left to right: aedeagus in ventral view, aedeagus in lateral view, digitus+volsella. A, Euodynerus bidentatus (Lepeletier). B, E. caspicus (Morawitz). C, E. curictensis Blüthgen. D, E. dantici (Rossi). E, E. disconotatus (Lichtenstein). F, E. fastidiosus (de Saussure). G, E. hellenicus Blüthgen. H, E. semisaecularis (Dalla Torre). I, E. variegatus (Fabricius). J, E. velutinus Blüthgen. K, E. bidentoides (Giordani Soika). L, E. notatus (Jurine). M, E. posticus (Herrich-Schaeffer). N, E. quadrifasciatus (Fabricius).

FIGURE 15. A–E, S2 in lateral view. F–I, propodeum in posterodorsal view (arrowheads indicating dorsal carinae). J–O, vestiture of mesosoma. P–Q, metanotum in anterior view. R–T, male hind tarsus in dorsal view. U–Y, female head in dorsal view (arrowhead in Y indicating foveae not placed in depression). A, F, J, Euodynerus bidentiformis (Giordani Soika). B, V, E. bidentoides (Giordani Soika). C, K, E. quadrifasciatus (Fabricius). D, E. caspicus (Morawitz). E, H, M, T, E. dantici (Rossi). G, P, S, U, E. posticus (Herrich-Schaeffer). I, Y, E. disconotatus (Lichtenstein). L, R, E. notatus (Jurine). N, E. curictensis Blüthgen. O, E. semisaecularis (Dalla Torre). Q, X, E. fastidiosus (de Saussure). W, E. rubrosignatus Gusenleitner.

FIGURE 16. A–B, male mandible in frontal view (arrowhead indicating normal or modified tooth). C–G, tegula in dorsal view. H–I, apex of T2 in dorsal view (arrowhead indicating lamellar margin). J–K, male hind femur in frontal view (arrowhead in J indicating basal expansion). L–N, apex of male metasoma in lateral view. A, Euodynerus notatus (Jurine). B, E. posticus (Herrich-Schaeffer). C, E. caspicus (Morawitz). D, H, E. hellenicus Blüthgen. E, I, E. dantici (Rossi). F, L, E. fastidiosus (de Saussure). G, N, E. disconotatus (Lichtenstein). J, E. velutinus Blüthgen. K, E. curictensis Blüthgen. M, E. semisaecularis (Dalla Torre).