Hedyjoppa chinensis, Riedel, 2023

Riedel, Matthias, 2023, Notes on Ichneumoninae (Hymenoptera, Ichneumonidae) from southern China, with descriptions of one new genus and twelve new species, Contributions to Entomology 73 (2), pp. 223-248 : 223

Hedyjoppa chinensis sp. nov.

Figs 2 , 22-25

Type material.

Holotype. (♂) China, Yunnan, Pianma env., 25.973°N, 98.708°E, 2500 m elev., 03.VI.2009, leg. Blank, Liston, Taeger.

Etymology.

The species name refers to the country of collection, China.

Description.

Male. Body length 13 mm. Flagellum with 40 segments, bristle-shaped; 1st flagellar segment 2.5 × as long as wide; distal segments moderately nodose. Tyloids on flagellar segments 9-18, long-oval, maximally 0.8 × as long as their segments. Temple distinctly and roundly narrowed behind eye, with microsculpture and sparse punctures, shining. OED 1.1 × and OOD 1.0 × ocellar diameter. Frons moderately concave, almost smooth, shining. Face finely and rather densely punctate, with microsculpture, ± shining, medially moderately bulging. Clypeus not distinctly separated from face, almost flat, 2.5 × as wide as long, with rather dense punctures; apical margin sharp and straight. Mandible slender, with two teeth; ventral tooth much smaller than dorsal tooth and slightly bent inwards. Malar space 0.6 × as long as width of mandibular base. Gena with rather dense punctures ventrally. Genal carina reaching hypostomal carina far from mandibular base, both carinae low.

Notaulus impressed at anterior 1/6 of mesoscutum. Mesoscutum densely punctate and finely granulate, ± dull. Side of pronotum punctate dorsally, striate ventrally. Mesopleuron and metapleuron densely punctate and shining; speculum smooth; juxtacoxal carina present. Scutellum slightly elevated, slightly longer than wide, densely punctate and with lateral carina in anterior 2/3. Propodeum in profile with an evenly arcuate line from base to apex and with distinctly elongate and sloping area dentipara, coarsely, but superficially rugose, without apophysis; spiracle slit-shaped. Area basalis and area superomedia confluent. Area basalis smooth and without lateral carina, slightly bulging forwards medially. Area superomedia almost sickle-shaped, ca. 2 × as wide as long, partly smooth; costula reaching its middle. Area petiolaris long and slender, with transverse rugae and distinct lateral carina. Lateral longitudinal carina of propodeum strong. Hind coxa coarsely and densely punctate. Hind femur densely punctate, 4.2 × as long as wide. External surface of hind tibia with about 12 distinct spines. Tarsal claws simple, strongly bent apically (by 90°). Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 4 × diameter of these veins; vein 2m-cu slightly distal to its middle. Vein 1cu-a postfurcal by 3 × its width.

Metasoma slender. Postpetiole slightly widened, without latero-median carina; median field not separated, finely aciculate; lateral field with some coarse punctures. Gastrocoelus strongly impressed and with coarse curved ridges. Thyridium transverse, 0.5 × as wide as interval between thyridia. 2nd tergite 1.1 × as long as wide. 2nd and 3rd tergites coarsely punctate and distinctly striate medially, ± dull. Following tergites with superficial punctures and ± shining. Hypopygium unmodified; apical margin distinctly rounded.

Colour. Black with extensive yellow colouration. Scape yellow; pedicel and flagellar segments 1-11 reddish-yellow, distal segments black. Head yellow; black are frons medially, stemmaticum and occiput. Mesosoma largely yellow; pronotum with transverse black band centrally. Mesoscutum black, with long median reddish-yellow band and lateral yellow stripe at wing base. Tegula, subtegular ridge, prescutellar ridge, scutellum and postscutellum yellow. Mesopleuron and mesosternum yellow, frontal, dorsal and posterior margins of mesopleuron black. Metapleuron and propodeum yellow; margins of metapleuron, area petiolaris and area posteroexterna black. Petiole black with partly reddish suffusion. Postpetiole yellow. 2nd tergite yellowish, following tergites reddish-yellow; all tergites with ± wide anterior blackish bands. Legs including coxae and trochanters yellow; tarsi pale-yellow. Wings slightly infuscate; pterostigma brown.

Female. Unknown.

Remark.

Due to the characteristic structure of the propodeum, this new species belongs to the Protichneumonini sensu Heinrich (1968a) and runs to Hedyjoppa Cameron in the key to Oriental Ichneumoninae ( Townes et al. 1961). Although the ♀ of this new species is unknown, I include it in the genus Hedyjoppa here. It differs from Hedyjoppa aurantacea Cameron, 1904 from India and H. hashimotoi Kusegimati, 1987 from Taiwan by the pentagonal areolet of fore wing, punctate metapleuron and the colouration of the metasoma with yellow or reddish-yellow tergites with anterior dark bands.

Figures

Figures 1 - 3. Habitus, dorsal view: 1. Holcojoppa chinensis holotype (HT); 2. Hedyjoppa chinensis HT; 3. Hepiopelmus gongshani HT.

Figures 22 - 25. Hedyjoppa chinensis sp. nov. HT: 22. Face, frontal view; 23. Head, dorsal view; 24. Propodeum, dorsal view; 25. Basal tergites, dorsal view.