Binodoxys ekaterinaе Davidian, Davidian & Belokobylskij, 2022

Davidian, Elena M. & Belokobylskij, Sergey A., 2022, New species of the aphid parasitoids of the genus Binodoxys Mackauer (Hymenoptera: Braconidae: Aphidiinae) from the fauna of Russia, Zootaxa 5209 (3), pp. 373-378 : 375-377

publication ID	https://doi.org/ 10.11646/zootaxa.5209.3.6
publication LSID	lsid:zoobank.org:pub:D1944A01-BC27-485E-AF88-E7295A880167
DOI	https://doi.org/10.5281/zenodo.7334250
persistent identifier	https://treatment.plazi.org/id/03F087B7-FFF3-653C-FF52-2934FB07FEBD
treatment provided by	Plazi
scientific name	Binodoxys ekaterinaе Davidian
status	sp. nov.

Treatment

Binodoxys ekaterinaе Davidian , sp. nov.

Figs 1B View FIGURE 1 ; 2B, H View FIGURE 2

Type material. Holotype: female, Russia, Irkutsk Province, Olkhon Island , 4.5 km E of Kharantsy, 53.224260° N, 107.493317° E, 23.VII.2021 (E. Tselikh) ( ZISP). GoogleMaps

Paratype: 1 female, with label as in holotype ( ZISP) .

Description. Female ( Fig. 1B View FIGURE 1 ). Body length 1.7 mm, fore wing length 1.1 mm, length of antenna 0.6 mm.

Head smooth, shining, sparsely setose, transverse in dorsal view, wider than mesosoma at level of tegulae. Eye large, oval, with sparse and short setae on its lower half. Transverse diameter of eye as long as temple (dorsal view). Tentorial index 0.25. POL 2.5 × Od. Clypeus with four long setae, width of clypeus 2.0 × its height. Antenna with 10 antennomeres, thickened towards apex, covered by semi-erect setae, which are shorter than width of flagellomere. F1 2.0 × longer than its width; F2 1.5 × longer than its width.

Mesosoma. Mesoscutum perpendicularly elevated above pronotum, with notauli developed only on its anterior third. Propodeum with large but weakly delineated central pentagonal area.

Wings. Fore wing hyaline, its length 2.1 × maximum width. Pterostigma 2.5 × longer than its width and 2.5 × longer than metacarp (1-R1). Radial vein (r+3-SR) 2.5 × longer than metacarp (1-R1) and almost as long as pterostigma.

Metasoma. Petiole ( Fig. 2H View FIGURE 2 ) without median and lateral carinae, their spiracular and additional tubercles almost fused; length of petiole 2.0 × larger than its width at level of spiracles. Prongs ( Fig. 2B View FIGURE 2 ) on posterior margin of last metasomal sternite short, straight, its basal width about 4.0 × longer than subapical width; prongs almost as long as ovipositor sheath, its dorsal side with three setae, and apex with two setiform bristles. Ovipositor sheath distinctly concave on ventral margin and with two long setae on its wide basal part. Narrow apical part of sheath 1.6 × longer than its wide basal part, and 0.4 × as wide as its basal width.

Colour. Body (beside black eye) entirely (including prongs and ovipositor sheaths) monochromic dark brown

Male. Unknown.

Host. Unknown.

Etymology. Named in honor Dr Ekaterina V. Tselikh, the collector of the specimens of this new species.

Comparative diagnosis. New species differs from the most part of Binodoxys species by shortened prongs on the posterior margin of the last metasomal sternite. These features are similar to same in Binodoxys crataegi sp. nov.; the differences between these taxa are shower after description of the latter.

The structures of antenna and petiole of new species resemble Binodoxys brevicornis (Haliday, 1833) , but the latter characterised by the long and upcurved prongs and long ovipositor sheaths ( Fig. 2D View FIGURE 2 ).