Endasys pristiphorae Sheng 2020, sp.n.
Creators: name: Duan, Chun-Hua
name: Li, Tao
name: Wu, Hai-Wei
name: Sheng, Mao-Ling
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Endasys
Endasys pristiphorae

description: Endasys pristiphorae Sheng, sp.n.
(Figs 1–10)
Material examined. Holotype, Female reared from cocoon of Pristiphora (Stauronematus) compresicornis (Hartig), CHINA: Feixian, Shandong province, 7 August 2007, Mao-Ling Sheng (GSFGPM). Paratypes: CHINA: 1 female reared from cocoon of Pristiphora erichsonii (Hartig), Pingheliang, Kangping, Shan’xi province, 12 May 2010, Tao Li (GSFGPM); 1 female 2 males reared from cocoons of P. xibei Wei & Xia, CHINA: Liupanshan, Ningxia, 13 to 18 May 2011, Tao Li, Mao-Ling Sheng (GSFGPM). 1 female 1 male, CHINA: Xinglongshan, Gansu, 3 June 2011, Mao-Ling Sheng (GSFGPM).
Diagnosis. Median section of upper margin of face slightly convex weakly edged (Fig. 2), evenly arched downward. Clypeus 1.8–2.0 × as wide as long, ventral margin weakly convex medially. Hypostomal carina strongly elevated behind mandible. Propodeum (Fig. 7) smooth, shiny, area superomedia as long as wide, anterior side as long as posterior side; costula connecting area superomedia almost at its middle. Head and mesosoma black. Basal metasomal tergites red brown, apical almost entirely black.
Description. Female. Body length 3.5–6.0 mm. Fore wing length 3.0–4.0 mm. Ovipositor sheath length approximately 0.8 mm.
Head. Inner margins of eyes parallel. Face (Fig. 2) slightly, evenly convex, 1.4–1.6 × as wide as long, with dense, fine punctures; median section of upper margin slightly rised as weak ridge, evenly arched downward. Clypeus 1.8–2.0 × as wide as long, slightly convex, ventral margin weakly convex medially. Mandible with sparse brownish yellow setae, upper tooth distinctly longer than lower tooth. Malar area with sparse fine punctures. Malar space 0.8–1.0 × as long as basal width of mandible. Gena (Fig. 3) smooth, shiny, distinctly wide, in lateral view approximately 1.8 × length of eye, with sparse punctures and brown setae. Vertex (Fig. 4) with texture as that of Gena. Postocellar line as long as ocular-ocellar line. Frons with texture as that of vertex, upper portion almost flat.Antenna (Fig. 5) with 19 flagellomeres. Ratio of length from first to fifth flagellomeres: 4.0:4.0:4.0:3.5:3.0. Occipital carina complete. Hypostomal carina strongly elevated behind mandible.
Mesosoma. Pronotum almost shiny, subanterior margin with a distinct, longitudinal carina; upper-posterior portion with even, dense punctures and light brown setae; lateral concavity with oblique transverse wrinkles. Epomia absent. Mesoscutum (Fig. 6) wide, 1.4 × as wide as long, slightly convex, with uneven punctures. Notaulus evident on front 0.25 of mesoscutum. Scutoscutellar groove (Fig. 6) smooth, shiny, with a strong median longitudinal carina. Scutellum smooth, shiny, with fine sparse punctures. Postscutellum short, as transverse ridge, smooth, without punctures. Mesopleuron (Fig. 8) with sparse fine punctures, lower portion with indistinct oblique short wrinkles. Speculum with fine sparse punctures. Upper end of epicnemial carina approximately reaching to subtegular ridge. Juxtacoxal carina strong, almost complete. Ratio of length of hind tarsomeres from first to fifth approximately: 10.0:4.0:3.0:2.0:4.0. Wings grayish, hyaline. Vein 1cu-a distal to 1/M approximately by 0.3 × length of 1cu-a. Areolet pentagonal, receiving vein 2m-cu approximately 0.66 × distance from vein 2rs-m to 3rs-m. 2-Cu approximately 2.3 × as long as 2cu-a. Hind wing vein 1-cu approximately 4.0 × as long as cu-a. Propodeum (Fig. 7) smooth, shiny, with strong, complete carinae. Area basalis an inverse trapezium. Area superomedia hexagonal, approximately as long as wide, costula connecting area superomedia almost at its middle. Area petiolaris strongly sloping, concave, with short, irregular transverse wrinkles. Propodeal spiracle small, circular, near lateral longitudinal carina, located at anterior 0.3 of propodeum.
Metasoma (Fig. 9). Metasomal tergites 1–4 smooth, shiny. First tergite 1.7–1.8 × as long as apical width, median carina reaching to postpetiole, dorso-lateral and ventro-lateral carinae complete; spiracle small, circular, at posterior 0.4. Second tergite evenly convex, trapezoidal, 0.5–0.6 × as long as apical width. Third tergite an inverse trapezium, 0.8 × as long as basal width. Fourth and subsequent tergites weakly shagreened. Ovipositor sheath 0.7– 0.8 × as long as hind tibia. Upper valve of ovipositor (Fig. 10) with indistinct nodus and a tiny notch on the nodus; apical portion of lower valve with irregular, sparse, indistinct vertical ridges.
Coloration (Fig. 1). Black, except the following. Median part of mandible darkish brown. Maxillary and labial palpi, basal part of antenna, fore and middle legs, hind leg except most portion of femur and apex of tibia, base of fore wing yellowish brown. Tenth and subsequent flagellomeres black brown. Tegula, pterostigma and wing veins brown. Metasomal tergites 1–2, basal half of tergite 3 red brown. Apical half of tergite 3 brown black. Fourth and subsequent tergites black.
Hosts. Pristiphora erichsonii (Hartig), P. xibei Wei & Xia, P. (Stauronematus) compresicornis (Hartig).
Distribution. CHINA: Gansu, Ningxia, Shan’xi, Shandong.
Etymology. The name of the new species is based on the host’s name.
Remarks. Similar to E. kinoshitai Uchida, 1955, but can be distinguished by the following combinations of characters: ventral part of mesopleuron with indistinct oblique short wrinkles; area superomedia of propodeum (Fig. 7) approximately as long as wide, anterior side as long as posterior side; apophysis very weak; face and mesosoma black; tegulae brown; apical tergites almost entirely black. E. kinoshitai: Mesopleuron mainly with distinct oblique longitudinal wrinkles; area superomedia of propodeum distinctly wider than long, approximately 1.6 as wide as long; apophysis strong, anterior side distinctly shorter than posterior side; face red brown; mesosoma irregularly darkish brown; tergites almost entirely yellow brown.
description: Published as part of Duan, Chun-Hua, Li, Tao, Wu, Hai-Wei & Sheng, Mao-Ling, 2020, A new species of genus Endasys Förster (Ichneumonidae, Cryptinae) parasitizing Pristiphora (Tenthredinidae) and a key to species from China, pp. 111-118 in Zootaxa 4743 (1) on pages 113-117, DOI: 10.11646/zootaxa.4743.1.9, http://zenodo.org/record/3687688