Coelojoppa scutellator, 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

Coelojoppa scutellator sp. nov.

Figs 12-16

Type material.

Holotype. (♀) China, Yunnan: Tengchong, 35 km SE: Gongshan, 24.828°N, 98.767°E, 2200 m elev., 1 ♀ 28.V.2009, leg. Blank, Liston, Taeger.

Etymology.

The species name refers to the completely carinated scutellum.

Description.

Female. Body length 9 mm. Flagellum with 36 segments, moderately lanceolate; 1st flagellar segment 2.0 × as long as wide; about 11th segment square; widest segments 2.0 × as wide as long. Temple short, strongly and roundly narrowed behind eye. Ocelli large, OED 0.8 × and OOD 0.8 × ocellar diameter. Frons granulated and with superficial punctures. Face rather densely punctate, shining, slightly and longitudinally bulging medially and laterally. Clypeus moderately convex, 2.5 × as wide as long, sparsely punctate, indistinctly separated from face; apical margin sharp and almost straight. Mandible large; lower mandibular tooth much smaller than upper tooth, not bent inwards. Malar space long, 1.2 × as long as width of mandibular base. Gena with rather dense punctures ventrally. Genal carina reaching mandibular base, genal and hypostomal carinae low.

Mesoscutum densely and finely punctate and granulate, ± dull. Notaulus not impressed. Mesopleuron and metapleuron finely and densely punctate, mesoscutum finely rugose-punctate ventrally and with fine longitudinal striae in front of speculum. Speculum finely punctate; juxtacoxal carina present. Scutellum moderately convex, about as long as wide, with sparse punctures and complete lateral carina. Propodeum densely punctate, without apophysis; spiracle slit-shaped. Area basalis without lateral carina, smooth, with median tubercle. Area superomedia heart-shaped, slightly longer than wide, partly smooth. Costula reaching area superomedia at 6/10 of its length. Posterior transverse carina reaching area petiolaris. Area petiolaris transversely rugose, with lateral carina. Hind coxa densely punctate, without scopa. Hind femur finely and densely punctate, 4.2 × as long as wide. External surface of hind tibia with 5 denticular spines. Tarsal claws simple, strongly bent apically (by almost 90°). Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 4 × diameter of these veins; vein 2m-cu distal to its middle. Vein 1cu-a interstitial.

Metasoma strongly oxypygous. Postpetiole moderately widened, densely and finely punctate, without latero-median carina; median field not separated. Gastrocoelus moderately impressed, with some fine rugae. Thyridium small, slightly oblique, 0.4 × as wide as interval between thyridia. 2nd to 4th sternites with median folds. 2nd tergite 1.1 × as wide as long. 2nd and 3rd tergites densely and finely rugulose-punctate, ± dull; following tergites with superficial punctures, ± shining. Ovipositor sheath widely extending beyond metasomal apex (by length of 3rd hind tarsomere).

Colour. Black. Scape, pedicel and flagellar segments 1-9 reddish brown, segments 10-16 ivory, distal segments black. Palps, mandible, except teeth, clypeus (with brownish suffusion medially), face, except reddish-brown paramedian stripes, gena and entire orbits, frontal and upper margins of pronotum, paramedian stripes of mesoscutum, subtegular ridge, long stripe of ventral mesopleuron, prescutellar ridge, side of scutellum, postscutellum, upper division of metapleuron and posterolateral stripe of propodeum ivory. Tegula, mesopleuron centrally and lateral petiolus reddish. 1st to 3rd tergites with posterior ivory bands; 4th tergite with small ivory spot postero-laterally; 6th tergite posteriorly and 7th tergite entirely ivory. Fore- and mid-coxae ivory, legs otherwise reddish; fore- and mid-tarsi reddish-brown. Wings hyaline; pterostigma ochreous.

Male. Unknown.

Remarks.

Due to the typical structure of genal carina, scutellum and propodeum, this new species belongs to the genus Coelojoppa Cameron and runs to this genus in the key of Oriental Ichneumoninae ( Townes et al. 1961). It differs from the type species, C. cariniscutis Cameron, 1904, by the pentagonal areolet of fore wing, densely punctate postpetiole and different colour pattern of metasoma (all tergites with ivory posterior bands in C. cariniscutis ).

Figures

Figures 12 - 16. Coelojoppa scutellator sp. nov. HT: 12. Face, frontal view; 13. Head, dorsal view; 14. Mesosoma, lateral view; 15. Propodeum, dorsal view; 16. Basal tergites, dorsal view.