Pteromalus xiaomoheensis Yan & Li, 2025

Pteromalus xiaomoheensis Yan & Li sp. nov.

Fig. 5 A – L View Figure 5

Type material.

Holotype. • 1 ♀ ( ICXU 20246442 ), Xinjiang, China, Gongliu County of Yili Prefecture ; 43°10'52.04"N, 82°44'9.49"E; 1377 m; 10 Jul 2021, coll. Liqin research group GoogleMaps . Paratypes. • 8 ♀ ( ICXU 20246443–20246450 ), same collection information as holotype GoogleMaps ; • 2 ♀ ( ICXU 20246451–20246452 ), Qinghe County of Altay Prefecture ; 46°26'5.83"N, 90°2'45.15"E; 600 m; 9 Jul 2020, coll. Liqin research group GoogleMaps ; • 1 ♀ ( ICXU 20246453 ), Altai City of Altay Prefecture ; 47°39'26.97"N, 88°17'20.22"E; 624 m; 24 Jun 2021, coll. Liqin research group GoogleMaps ; • 1 ♀ ( ICXU 20246454 ), Fuyun County of Altay Prefecture ; 47°1'7.69"N, 89°45'24.35"E; 830 m; 11 Jul 2020, coll. Liqin research group GoogleMaps ; • 6 ♀ ( ICXU 20246455–20246460 ), Zhaosu County of Yili Prefecture ; 43°9'10.43"N, 81°26'38.83"E; 1556 m; 9 Jul 2021, coll. Liqin research group GoogleMaps ; • 1 ♀ ( ICXU 20246461 ), Xinyuan County of Yili Prefecture ; 43°22'38"N, 83°36'18"E; 1279 m; 28 Jul 2018, Coll. Hongying Hu research group GoogleMaps ; • 1 ♀ ( ICXU 20246462 ), Tekes County of Yili Prefecture ; 43°13'19.12"N, 81°48'31.80"E; 1200 m; 8 Jul 2021, coll. Liqin research group GoogleMaps ; • 33 ♀, Tekes County of Yili Prefecture ; 43°9'19.98"N, 88°47'23.76"E; 1184 m; 9 Jul 2021, coll. Liqin research group GoogleMaps ; • 1 ♀ ( ICXU 20246463 ), Gongliu County of Yili Prefecture ; 43°20'22.85"N, 82°31'4.19"E; 881 m; 10 Jul 2021, coll. Liqin research group GoogleMaps ; • 1 ♀ ( ICXU 20246464 ), Urumqi County of Urumqi ; 43°27'25.02"N, 87°22'37.20"E; 1757 m; 5 Jul 2022, Coll. Hongying research Hu GoogleMaps .

Description.

Female. Body (Fig. 5 A, B View Figure 5 ) length 3.0– 3.4 mm (n = 5). Head and mesosoma dark metallic-green, metasoma dark green with reflections. Antenna with yellowish-brown scape; pedicel and flagellum dark-chocolate-brown. Legs (Fig. 5 K View Figure 5 ) with all coxae dark metallic-green, femora dark green, except for apical part brown, tibiae yellowish brown to brown and tarsi pale yellow, except last segment brown. Wings hyaline; forewing with venation brown.

Head in frontal view (Fig. 5 C View Figure 5 ) 1.19–1.28 × as broad as high, face with metallic reflections and regular raised-reticulations; clypeus (Fig. 5 C View Figure 5 ) with longitudinal striations, with lower margin deeply incised medially, hence appearing almost bidentate; left mandible 3 - toothed and right mandible 4 - toothed (Fig. 5 D View Figure 5 ). Antennae (Fig. 5 C View Figure 5 ) inserted at centre of face, higher than the lower margin of eyes; distance between upper margin of antennal toruli and lower margin of median ocellus 0.91–1.11 × as long as distance between lower margin of antennal toruli and lower margin of clypeus; antennae with scape reaching lower margin of anterior ocellus; pedicel 1.55–1.59 × as long as broad in dorsal view; two anelli annular; funicular segments (Fig. 5 E, G View Figure 5 ) connected tightly to each other and each with two rows of sensilla; fu 1 to fu 4 each about 1.10–1.30 × as long as broad each; fu 5 0.95–1.12 × as long as broad; fu 6 0.73–0.77 × as long as broad; clava 2.52–2.68 × as long as broad; pedicle and flagellum combined 0.75–0.90 × head width. Head in lateral view (Fig. 5 F View Figure 5 ), eye height 1.42–1.70 × as eye width; malar sulcus linear and complete, and malar space 0.46–0.48 × eye height. Head in dorsal view (Fig. 5 G View Figure 5 ), 2.19–2.44 × as broad as long; POL 1.50–1.86 × OOL.

Mesosoma in dorsal view (Fig. 5 A View Figure 5 ) 0.86–0.96 × as head width; pronotum collar (Fig. 5 H View Figure 5 ) margined with carina, 0.88–0.91 × as wide as mesoscutum, medially one quarter as long as mesoscutum; mesoscutum 0.62–0.72 × as long as broad; scutellum 0.95–1.00 × as long as width, frenal line absent. Propodeum (Fig. 5 I View Figure 5 ) 0.35–0.47 × as long as scutellum, medial area reticulated; median carina and plica complete and sharp; nucha large and reticulate. Mesosoma in lateral view with prepectus smooth, 0.62–0.80 × as long as tegula; entire thoracic pleura regularly reticulate, except the upper mesepimeron smooth and shiny metallic. Forewing (Fig. 5 J View Figure 5 ) apex exceeding apex of gaster, 2.05–2.14 × as long as broad; lower surface of costal cell with one row of hairs interrupted medially; basal setal line and basal cell bare; speculum large and open posteriorly. Marginal vein length 0.96–1.04 × postmarginal vein length and 1.09–1.13 × longer than stigmal vein length; postmarginal vein 1.10–1.14 × as long as stigmal vein. Metacoxa in dorsal view bare, metafumur (Fig. 5 K View Figure 5 ) 3.87–4.16 × as long as broad.

Gaster long-oval (Fig. 5 L View Figure 5 ), 1.57–1.85 × as long as broad, 1.06–1.30 × as long as mesosoma, 0.81–0.97 × as long as head plus mesosoma; Gt 1 about 0.31–0.35 × as long as gaster; Gt 7 0.63–1.14 × as long as broad; ovipositor sheaths exserted, length of extend part 0.5–1.25 × as long as Gt 7 length; hypopygium extending about 0.51–0.67 × the length of gaster.

Male. Unknown.

Etymology.

The species is named after the collection locality of its holotype.

Biology.

Unknown.

Distribution.

Xinjiang, China: Yili Prefecture (Gongliu County; Zhaosu County; Xinyuan County; Tekes County; Gongliu County), Altay Prefecture (Qinghe County; Altai City) and Urumqi.

Comments.

This species is similar to P. tripolii (Fig. 6 A – F View Figure 6 ); both species belong to the albipennis species group, both have with left mandible with three teeth and right mandible with four; head and thorax brightly metallic, green to blue, brassy, or coppery; antenna with sensilla usually numerous and in two irregular rows on at least the proximal segments of the funicle; fu 1 longer than broad and fu 6 quadrate or transverse; combined length of pedicellus and flagellum distinctly less than the breadth of the head; propodeum medially a little less than half as long as the scutellum ( Graham 1969: fig. 377); gaster ovate, basal tergite occupying 1 / 3–2 / 5 of the total length. However the new species is distinguished from P. tripolii by the following characters: body color dark blue; body length 3.0– 3.4 mm; gaster long-oval (Fig. 5 L View Figure 5 ), 1.57–1.85 × as long as broad, 1.06–1.30 × as long as mesosoma. In P. tripolii : body color usually bright green to blue (Fig. 6 A View Figure 6 ); body length 2.7–3.1 mm (Fig. 6 A View Figure 6 ); gaster (Fig. 6 F View Figure 6 ) short-oval, about as long as, or slightly shorter than, the mesosoma, about as broad as the latter, 1.2 to 1.6 times as long as broad, acute but not acuminate apically (Fig. 6 A View Figure 6 ).