Plutothrix gribanovi
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Ordo: Hymenoptera
Familia: Pteromalidae
Genus: Plutothrix
Name
Plutothrix gribanovi Tselikh, Várkonyi & Dale-Skey sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Comparison
Plutothrix gribanovi is similar to P. canariensis Hedqvist and P. trifasciata (Thomson); the differences between these species are given in the key.
Description
Female. Body length 4.90–7.20 mm. Fore wing length 3.00–3.90 mm.
Head dark metallic blue; mesosoma metallic green with diffuse coppery lustre; metasoma with Mt2 basally metallic bluish-green, apically yellowish-brown, Mt3, Mt4, sometimes Mt5 yellowish-brown, Mt6–Mt8 dark brown; ovipositor sheath black. Antenna with scape and pedicel yellow, flagellum brown. All coxae metallic green with diffuse coppery lustre; all femora, tibiae and tarsi yellow except last segment yellowish-brown. Fore wing with three or four fuscous clouds, venation yellowish-brown.
Head in dorsal view 2.10–2.20× as broad as long and 1.25–1.35× as broad as mesoscutum; in frontal view 1.30–1.40× as broad as high. POL 0.96–1.00× OOL. Eye height 1.42–1.45× eye length and 2.60–2.70× as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.75–0.76× distance between antennal toruli and median ocellus. Antenna with scape 0.80–0.85× as long as eye height and 1.15–1.20× as long as eye length; pedicel 2.00–2.16× as long as broad and 0.46–0.52× as long as F1; combined length of pedicel and flagellum 1.33× breadth of head; F1 2.85–3.10× as long as broad, F3–F6 longer than broad; clava 2.35–2.44× as long as broad.
Mesosoma 1.65–1.70× as long as broad. Scutellum finely reticulate, 1.0–1.05× as long as broad. Propodeum without nucha, 0.86–0.90× as long as scutellum; median carina present; sculpture alutaceous. Metapleuron alutaceous, upper mesepimeron smooth. Fore wing 2.67–2.85× as long as maximum width; basal cell bare; cubital vein bare; basal vein setose; speculum partly open; PST 0.53–0.66× as long as M, M 0.78–0.80× as long as PM and 1.68–1.70× as long as S. Metasoma 4.47–5.15× as long as broad, 1.90–2.02× as long as mesosoma and 1.45–1.48× as long as mesosoma and head; Mt2 deeply emarginate medially, Mt8 1.90–2.10× as long as broad. Ovipositor sheath projecting beyond apex of metasoma.
Male. Body length 3.1–4.0 mm. Fore wing length 2.7–3.1 mm.
Head metallic green with diffuse coppery lustre; metasoma brown with diffuse coppery or metallic green lustre. Fore wing with four fuscous clouds, venation yellowish-brown.
Head in dorsal view 1.20–1.31× as broad as mesoscutum. Eye height 1.50–1.60× eye length and 2.10–2.30× as long as malar space. Distance between antennal toruli and lower margin of clypeus 1.28–1.40× distance between antennal toruli and median ocellus. Pedicel 1.60–1.63× as long as broad and 0.30–0.32× as long as F1; combined length of pedicel and flagellum 2.34× breadth of head; F1 5.60–7.00× as long as broad; clava 4.66× as long as broad.
Metasoma 4.60–5.30× as long as broad, 1.12–1.16× as long as mesosoma and 0.86–0.87× as long as mesosoma and head. Otherwise, similar to female.
Etymology
The species is named in honour of the senior author’s brother, Sergej Gribanov.
Material examined
Holotype female (deposited in ZISP): “RUSSIA, Altai Rep., 30 km S Kuray, 31.VII.2007, coll. A. Khalaim”.
Paratypes (ZISP): Russia: Krasnodar Reg., 1 male, Sochi City, Lazarevskoe, 28.V.1974, coll. Tobias; 1 female, same locality, 3–6.VI.1974, coll. V. Tobias; 3 females, same locality, 14–26.VI.1979, coll. Tobias; 1 female, Sochi City, Golovinka, 9.IV.1975, coll. V. Tobias; 1 female, Sochi City, Lazarevskoe, Polkovnich’ya balka, 43°53'48"N, 39°21'18"E, 31.VII.2020, coll. Tselikh; 1 male, Sochi City, Mamedova shchel’, 43°57'11"N, 39°18'27"E, 29.VII.2020, coll. K. Fadeev.
Distribution
Russia (European part, Western Siberia).
Biology
Unknown.
Original Description
- Tselikh, E; Várkonyi, G; Dale-Skey, N; 2022: Review of the genus Plutothrix Förster, 1856 (Hymenoptera, Pteromalidae) with a key to Palaearctic species Journal of Hymenoptera Research, 93: 1-32. doi
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