Pteromalus xiaomoheensis Yan & Li 2025, sp. nov.
Creators: name: Li, Qin
name: Liu, Ya-Lin
name: Yan, Guo-Hua
name: Zhang, Tong-You
name: Xiao, Hui
name: Hu, Hong-ying
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Pteromalus
Pteromalus xiaomoheensis

description: Pteromalus xiaomoheensis Yan & Li sp. nov.
Fig. 5 A – L
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. Paratypes. • 8 ♀ (ICXU 20246443–20246450), same collection information as holotype; • 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; • 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; • 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; • 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; • 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; • 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; • 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; • 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; • 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.
Description.
Female. Body (Fig. 5 A, B) 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) 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) 1.19–1.28 × as broad as high, face with metallic reflections and regular raised-reticulations; clypeus (Fig. 5 C) 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). Antennae (Fig. 5 C) 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) 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), 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), 2.19–2.44 × as broad as long; POL 1.50–1.86 × OOL.
Mesosoma in dorsal view (Fig. 5 A) 0.86–0.96 × as head width; pronotum collar (Fig. 5 H) 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) 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) 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) 3.87–4.16 × as long as broad.
Gaster long-oval (Fig. 5 L), 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); 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), 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); body length 2.7–3.1 mm (Fig. 6 A); gaster (Fig. 6 F) 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).
description: Published as part of Li, Qin, Liu, Ya-Lin, Yan, Guo-Hua, Zhang, Tong-You, Xiao, Hui & Hu, Hong-ying, 2025, Description of two new species of the genus Pteromalus Swederus (Hymenoptera, Pteromalidae, Pteromalinae) from Xinjiang, China, pp. 221-237 in ZooKeys 1234 on pages 221-237, DOI: 10.3897/zookeys.1234.145429