Binodoxys yunnanicus Davidian, 2024

Davidian, Elena M. & Belokobylskij, Sergey A., 2024, To the knowledge of the aphidiine wasps (Hymenoptera: Braconidae: Aphidiinae) from China, Zootaxa 5507 (2), pp. 395-400 : 396-398

publication ID	https://doi.org/ 10.11646/zootaxa.5507.2.10
publication LSID	lsid:zoobank.org:pub:548CAE99-01F4-44B4-B7A0-6220AD15C387
DOI	https://doi.org/10.5281/zenodo.13757481
persistent identifier	https://treatment.plazi.org/id/A0FDF4C2-FE71-48B4-BA68-1C01C82B062E
taxon LSID	lsid:zoobank.org:act:A0FDF4C2-FE71-48B4-BA68-1C01C82B062E
treatment provided by	Plazi
scientific name	Binodoxys yunnanicus Davidian
status	sp. nov.

Treatment

Binodoxys yunnanicus Davidian , sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:A0FDF4C2-FE71-48B4-BA68-1C01C82B062E

Fig. 1 View FIGURE 1

Type material. Holotype: female, China. Yunnan Perovince , NE of Lanping City, 6.25 km W of Guanping Village, 26°30ʹ59ʺ N, 99°30ʹ50ʺ E, h = 3430 m, 28.V.2015 (G.E. Davidian) ( ZISP). GoogleMaps

Notes. The holotype was originally preserved in the alcohol (70%), and consequently the integument of the body is partly deformed. During the preparation of the slide and its following investigation and photographing, part of the setae on the dorsal margin of prongs were lost; all these setae were drawn on the Fig. 1G View FIGURE 1 at the locations of the setae points similar to those preserved ones.

Description. Female. Body length 2.0 mm; length of antenna 1.2 mm; length of fore wing 1.8 mm.

Head ( Fig. 1B View FIGURE 1 ) smooth and shiny, with sparse setae, wider than mesoscutum at level of tegulae. Eye large, oval, weakly convergent below (front view), with sparse setae in its lower half. Temple about as long as transverse diameter of eye (dorsal view). Ocelli in acute triangle. POL 2.0 × Od. Clypeus 2.0 × wider than its high. Tentorial index 0.4. Face 1.5 × wider than its height. Antenna with 11 antennomeres, filiform, not widened towards apex, with semi-erect setae, length of setae almost equal to medial width of antennomeres. F1 and F2 same length, their length 4.6 × width in middle. F1 without rhinaria (multiparous plate sensillae), F2 with 2 rhinaria.

Mesosoma. Mesoscutum smooth, shiny, with sparse setae. Notauli present only in anterior one third of mesoscutum. Propodeum ( Fig. 1D View FIGURE 1 ) with distinct, wide and delineated by carinae areola. Legs with semi-erect setae.

Wings ( Fig. 1A View FIGURE 1 ). Fore wing hyaline, its length 2.4 × maximum width. Pterostigma 3.3 × longer than its maximum width and equal to metacarp (1-R1). Radial vein (r) 1.4 × longer than metacarp (1-R1) and pterostigma.

Metasoma. Petiole ( Fig. 1C View FIGURE 1 ) narrow, with two pair lateral tubercles, length of petiole 3.6 × its width at level of spiracles. Spiracular tubercles situated on middle of petiole. Basal part of ovipositor sheath dorsally evenly curved, 0.35 × as long as its apical part. Ovipositor sheath ( Fig. 1E View FIGURE 1 ) 4.0 × longer its maximum width. Prongs ( Fig. 1F, G View FIGURE 1 ) 1.5 × longer than ovipositor sheath, with four long setae on its dorsal margin, with one long seta-shaped bristle apically.

Colour. Head, antennomeres from third antennomere, mesosoma and most of metasoma dark brown. Scape, pedicel, F1 and F2, clypeus, mouthparts, legs (except dark last segments), petiole, posterior tergites of metasoma with ovipositor sheaths and posterior sternite with prongs yellowish brown.

Male. Unknown.

Hosts. Unknown.

Bionomics. Specimen was collected on the leaves of Acer sp. ( Fig. 2 View FIGURE 2 ).

Etymology. Named after Yunnan Province of China, where this new species was collected.

Comparative diagnosis. This new species is similar to species described from North-East India (Meghalaya State), Binodoxys trichosiphae Samanta & Raychaudhuri, 1990 [parasitoid of Greenidea psidii van der Goot, 1916 ) ( Raychaudhuri et al. 1990) and B. shillongensis Starý, 1978 (parasitoid of Sinomegoura pyri (Ghosh & Raychaudhuri, 1968) ] ( Starý and Ghosh 1978). These Indian species are also characterised the presence of the single apical seta-shaped bristle on prongs.

Binodoxys yunnanicus sp. nov. differs from B. shillongensis and B. trichosiphae the following characters: F1 and F2 the same length; pterostigma as long as metacarp (1-R1) ( Fig. 1A View FIGURE 1 ); petiole 3.6 × longer than its width at level of spiracular tubercles ( Fig. 1C View FIGURE 1 ); ovipositor sheath 4.0 × longer than its maximum width ( Fig. 1E View FIGURE 1 ); prongs almost straight, with four long setae on their dorsal margin ( Fig. 1F, G View FIGURE 1 ).

In turn, B. shillongensis and B. trichosiphae have F1 longer than F2, pterostigma 2.0 × longer than metacarp (1-R1), petiole only 3.0 × longer than its width at level of spiracular tubercles. Besides, in B. shillongensis the ovipositor sheath is 3.0 × longer than its maximum width, and the prongs sinuate and with three long setae on their dorsal margin and single apical seta-shaped bristle. In B. trichosiphae of the ovipositor sheath is 4.5 × longer than its maximum width, the prongs straight and with two long setae on their dorsal margin and single apical seta-shaped bristle.