Janssoniella magna Tselikh et Lee, 2020

Tselikh, E. V., 2020, Review of the eastern Palaearctic species of Janssoniella (Hymenoptera: Pteromalidae), with descriptions of four new species, Zoosystematica Rossica (China) 29 (2), pp. 301-315 : 309-310

Janssoniella magna Tselikh et Lee , sp. nov.

( Figs 25–31)

Janssoniella magna Tselikh and Lee in Tselikh et al.,

2017: 15–17 (unavailable name).

Holotype. Female , South Korea, “ Pocheon-si, Soheur-eup, Jikdong-ri 51-7, Korea National Arboretum, 37°45′01″N, 127°08′34″E, 29.VIII.–14.X.2013, coll. I. Kim ” ( YNU).

Paratype. Female , Russia, Primorskiy Terr., Ekaterinovka Vill., 24.VIII.2001, coll. S. Belokobylskij ( ZISP) .

Description. Female. Body length 7.50– 8.40 mm; fore wing length 4.70–5.30 mm.

Head and mesosoma dark metallic blue-green with diffuse coppery lustre. Antenna with scape metallic green in upper part and yellowish-brown in lower part, pedicel brown, flagellum and clava black. Fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown, femur, tibia, and tarsus yellow, last segment of tarsus yellowish-brown. Fore wing with brownish tint, venation brown. Metasoma dark metallic blue-green with diffuse coppery lustre; ovipositor sheath black.

Sculpture of head dorsally reticulate, clypeus weakly alutaceous and shining, malar space finely reticulate. Pronotum alutaceous and finely reticulate in lateral parts, mesoscutum, axilla, scutellum, frenal area and lateral areas of propodeum finely reticulate. Metasoma weakly alutaceous or smooth and shining.

Head in dorsal view 2.05–2.10 times as broad as long and 1.02–1.06 times as broad as mesoscutum; in frontal view 1.20–1.30 times broader than high. POL 1.35–1.55 times OOL. Eye height 1.35–1.40 times eye length and 3.0–3.1 times as long as malar space. Distance between antennal toruli and lower margin of clypeus 0.60–0.73 times distance between antennal toruli and median ocellus. Antenna with scape 0.66–0.70 times as long as eye height and 0.90 times as long as eye length; pedicel 1.45–1.55 times as long as broad and 0.36–0.4 times as long as F1; combined length of pedicel and flagellum 1.80–1.85 times breadth of head; flagellum almost filiform; all anelli transverse; F1 3.55–3.66 times as long as broad, with four–five rows of dense sensilla; F2–F6 longer than broad.

Mesosoma 1.65–1.80 times as long as broad. Scutellum 1.10–1.25 times as long as broad. Propodeum medially 0.25 times as long as scutellum; median carina complete and straight, nucha absent.

Fore wing 2.80–3.10 times as long as maximum width; basal cell pilose apically; speculum closed; costal cell with three complete rows of setae; marginal vein 0.60–0.70 times as long as postmarginal vein and 1.86–2.00 times as long as stigmal vein.

Metasoma lanceolate, 2.70–2.80 times as long as mesosoma and 1.80–2.00 times as long as mesosoma and head; Mt8 4.6–5.6 times longer than maximum width; ovipositor sheath 0.30–0.43 times length of Mt8.

Male. Unknown.

Comparative diagnosis.This species is similar to J. rachini in having the antennal clava darker, dark brown or black, basal cell pilose apically, sculpture of frenal area and lateral areas of propodeum finely reticulate, Mt2 and Mt3 dark metallic green. However, J. magna has the eye height 3.00–3.10 times as long as malar space (vs 2.13–2.25 times), antennal scape entirely yellowish-brown (vs yellowish-brown basally and metallic green apically), F1 3.55–3.66 times as long as broad (vs 2.35–2.65 times), metasoma 2.70–2.80 times longer than mesosoma (vs 2.15–2.25 times), Mt8 4.60–5.60 times longer than maximum width (vs 2.60–3.80 times), fore and hind coxae metallic green basally and yellowish-brown apically, mid coxa yellowish-brown (vs all coxae metallic green).

Etymology. The name is derived from the Latin “magnus”, meaning “great”, referring to the large size of this species.

Distribution. South Korea, Russia (Far East).

Biology. Unknown.