Sympiesis bimaculae, Kosheleva, 2024

Kosheleva, O. V., 2024, Eulophid wasps of the subfamily Eulophinae (Hymenoptera: Chalcidoidea) from the Khingan Reserve (Amur Province, Russia), with the descriptions of new species, Far Eastern Entomologist 493, pp. 14-31 : 27-29

Sympiesis bimaculae sp. n.

https://zoobank.org/NomenclaturalActs/ 304D9EF2-FA46-4D56-8E2F-26897BF3B09B

Figs 5A–F , 6A–B

TYPE MATERIAL. Holotype: ♀, Russia: Amur Province, KhR, 24 km W Arkhara, сordon Kleshinskoe ozero, 12–13.VIII.2022 (ChV) (antenna and fore wing – permanent slide, no. 81) ( ZISP) . Paratype: same locality, 12−14.VIII.2022 (antenna and fore wing – permanent slide, no. 82), 1♀ , 7 km SE Uril, river Dyrovatka , forest, 6–7.VIII.2022, 2 ♀ (VCh, OK) ( ZISP) .

DESCRIPTION. Female. Body length 2.2–3.4 mm.

Colour. Head mainly purple with a greenish tinge to the lower face and genae, scape pale yellow, dark brown dorso-apically; remaining antenna brown; mesosoma dark green with coppery luster; tegula brown; legs pale yellow, coxae whitish, except basal half of fore coxae and small area on ventral surface of middle coxae dark brown; fore femur with brown longitudinal stripe on posterolateral surface; gaster dark brown, dorsally with green to violet reflections, ventrally yellow-brownish, first tergite with bluish purple luster, third and fourth tergites with large yellow spots and small spots on sixth tergite; fore wing with infuscate area bellow ST (in small specimens infuscate area reduced to almost absent); venation pale brownish.

Sculpture. Head finely coriaceous-reticulate; pronotum, mesonotum and dorsellum strongly reticulate with isodiametric cells; propodeum rugulose; gaster smooth, sixth and seventh tergites weakly alutaceous.

Head. 1.10–1.24 × as broad as mesoscutum in dorsal view, 2.20–2.60 × as broad as long; transverse-oval, 1.30–1.40 × wider than high in frontal view; temple 0.10 × as long as eye. POL 1.55–1.87 × OOL, OOL 1.10–1.30 × OD. Eyes separated by 1.10 their high, with very short, sparse setae. Malar space 0.20–0.30 × height of eye. Mouth opening 1.67–1.90 × as broad as malar space. Antenna inserted at above ventral margins of eyes, at distance about equal distance between inner mesal margins of toruli; scape 4.0–4.3 × as long as broad, 0.8– 0.9 × as long as height of eye, reaching lower edge of median ocellus; pedicel plus flagellum 1.40–1.50 × as long as breadth of head and 1.57–1.75 × as long as breadth of mesoscutum; pedicel in profile 1.60 × as long as broad, funicle with one anellus and four funicular segments, F1 1.80–2.20 × as long as pedicel; F1–F3 about equal in length and about 1.30 × longer F4; F1–F4: 2.50–2.70, 2.46–2.53, 2.29–2.50 and 1.86–1.88 × as long as broad, respectively; clava two segmented, 2.20 × as long as broad, C1 1.20–1.30 × as long as broad, more than half length of clava. Funicular segments with numerous setae.

Mesosoma. 1.77–1.89 × as long as broad in dorsal view, weakly convex in lateral view, 1.89–1.96 × as long as high with propodeum sloping at about 45°. Pronotum 0.25–0.35 × as long as mesoscutum. Mesoscutum transverse, 1.55–1.60 × as broad as long, and 1.00–1.20 × as long as scutellum. Scutellum about as long as broad, with two pairs of strong, white setae; sculpture of scutellum and axillae as strong as mesoscutum. Dorsellum reticulate. Propodeum medially 2.20 × as long as dorsellum and 0.52–0.55 × as long as scutellum; with irregular median carina (5E); callus with several long white setae; spiracles of medium size, rounded, separated from metanotum by 0.50 × its diameter. Fore wing 2.35–2.40 × as long as broad; costal cell 0.83–0.88 as long as M and 7.0–8.0 × as long as broad; ventrally with a complete row of setae and dorsally a partial row of 9 setae apically; SM dorsally with 7–9 setae; M 5.70–6.60 × as long as ST; ST at an angle of 46° to the costal wing margin, moderately thin basally; stigma elongate, hardly thickened; PM 2.60–2.65 × as long as ST, 0.30–0.50 × as long as M; basal cell open posteriorly, with three to four setae; speculum of moderate size, reaching to base of M, closed below. Fore wing with moderately dense; marginal fringe short. Hind wing 4.0 × as long as broad, rounded at apex.

Metasoma. Gaster long ovate, 2.35–2.79 × as long as broad, 1.36–1.61 × as long as mesosoma, 1.08–1.25 × as long as head plus mesosoma, and 0.95–1.00 × as broad as mesosoma; acute apically; last tergite a little longer than broad ( Fig 5 F ).

Male. Unknown.

DIFFERENTIAL DIAGNOSIS. The new species is similar to S. derogatae Kamijo, 1965 (Comparative material: 2♀, Primorskiy Territory, Chernigovskiy distr., Dmitrievka ex. Loxostege sticticalis , soya, 9.IX.1980 (coll.) 6.IV.1981 (par. em.) V. Arephin) and S. smaragdina Storozheva, 1990 (Comparative material: holotype: ♀, Primorskiy Territory, Rjazanovka, ex. caterpillar on Lespedeza, 13.VIII.1983, coll. N.A. Storozheva), by the elongate gaster (longer than head plus thorax), reticulate or rugulose propodeum and complete nataular furrows of mesoscutum. The new species differs from the both latter species by the with infuscate area bellow stigma (wings hyaline in S. derogatae and S. smaragdina [ Kamijo, 1965: P. 74; Storozheva, 1990: P. 41]), hind coxae completely white (infuscate extreme base in S. derogatae and yellow in S. smaragdina [see ibid], gaster with two large yellow spots (one brownish yellow spot in S. derogatae , and with yellow pattern on second to fourth tergites in S. smaragdina [see ibid]), mesoscutum with strong reticulation, the reticulations moderately large, isodiametric (with relatively small reticulations in S. derogatae and S. smaragdina [comparative material]).

DISTRIBUTION. Amur Province

HOSTS. Unknown

ETYMOLOGY. Named for the colouration of the gaster, from the Latin prefix bi - (two) and maculae (spots).

Figures

Fig. 5. Sympiesis bimaculae sp. n. (♀, holotype). A – habitus, dorsal view; B – habitus, lateral view; C – head, frontal view; D – mesosoma, dorsal view; E – dorsellum with propodeum, dorsal view; G – metasoma, dorsal view.

Fig. 6. Sympiesis bimaculae sp. n. A – antenna (♀, paratype); B – fore wing (♀, holotype).