Sinophorus bazariae Sheng

Sheng, Mao-Ling, Li, Tao & Cao, Jiang-Feng, 2015, Three new species of genus Sinophorus Förster (Hymenoptera, Ichneumonidae) parasitizing twig and defoliating Lepidoptera, Zootaxa 3949 (2), pp. 268-280 : 270-273

Sinophorus bazariae Sheng , sp. n.

( Figs. 1 –9,29)

Etymology. The specific name is derived from the host’s generic name.

Holotype. female, CHINA: Balong, 36.16°N, 97.45°E, 2860m, Dulan County, Qinghai Province, 29 September 2013, reared from Bazaria turensis Ragonot, 1887 by Mao-Ling Sheng and Tao Li.

Paratype. 1 female, same data as holotype except 28 August 2013.

Diagnosis. Areolet quadrangular, 2rs-m approximately as long as 3rs-m, receiving vein 2m-cu approximately at lower centre. Hind femur approximately 4.2x as long as widest width. Ovipositor sheath approximately as long as first tergite, 0.8x as long as hind femur, 0.6x as long as hind tibia; ovipositor straight. Basal end and median section of hind tibia white, subbase dark brown, apical portion black. outside of hind femur brown black, inner side dark red; all tergites entirely black.

FIGURES 1–9 . (Continued) Description. Female. Body length approximately 5.5 mm. Fore wing length approximately 4.0 mm. Ovipositor sheath length approximately 1.0 mm.

Head. Head about as wide as mesosoma. Inner margins of eyes slightly convergent downwards, indistinctly concave near antennal sockets. Face ( Fig. 2 ) coriaceous, narrowest width approximately 0.92x total length of face and clypeus; median portion slightly convex longitudinally, with distinct fine punctures. Clypeus with texture as that of face, punctures weak and sparse; apical margin smooth and shiny. Mandibles slightly convergent toward apex, basal portion almost smooth, with sparse, indistinct punctures. Upper tooth of mandible as long as lower tooth. Cheek slightly concave, finely granularly coriaceous. Malar space approximately 0.4x as long as basal width of mandible. Gena smooth, with sparse fine punctures, upper portion strongly convergent backwardly, in lateral view approximately 0.8x as long as width of eye. Vertex ( Fig. 3 ) finely granularly coriaceous. Interocellar area weakly convex. Postocellar line approximately 1.7x as long as ocular-ocellar line. Ocular-ocellar line as long as diameter of postocellus. Frons almost flat, slightly coarse. Antenna with 29 flagellomeres; ratio of length from first to fifth flagellomeres approximately: 1.2:0.8:0.8:0.7:0.7. Occipital carina complete, lower end joining oral carina near base of mandible.

Mesosoma. Pronotum almost smooth, lower portion shiny, lateral concavity and posteromedian portion with dense oblique transverse wrinkles, upper-posterior portion with dense, fine punctures. Epomia weak and short. Mesoscutum ( Fig. 4 ) evenly convex, anterior portion with indistinct fine punctures, posterior portion with distinct evenly punctate, distance between punctures 0.5–1.0x diameter of puncture. Notaulus absent. Anterior side of scutoscutellar groove oblique-flat, posterior side steep. Scutellum strongly convex, with dense fine punctures, distance between punctures approximately 1.0x diameter of puncture. Postscutellum strongly, transversely convex, anterior-lateral portion deeply concave. Upper anterior portion of mesopleuron ( Fig. 5 ) between mesopleural fovea and subalar prominence with dense oblique longitudinal wrinkles; lower portion fine coriaceous with distinct fine punctures, distance between punctures 1.0–3.5x diameter of puncture. Speculum transverse, smooth and shiny. Upper end of epicnemial carina reaching about 0.6 level of front margin of mesopleuron. Posterior transverse carina of mesosternum complete, median section evidently stronger and higher than lateral portion. Metapleuron slightly convex, with dense, distinct, fine punctures, distance between punctures 0.2–1.0x diameter of puncture. Submetapleural carina complete, strong. Wings slightly brownish, hyaline. Fore wing with vein 1cu-a slightly distal to 1/M. Areolet quadrangular, receiving vein 2m-cu at its middle. Vein 2-Cu slightly longer than 2cu-a. Hind wing vein M+Cu slightly arched; 2-Cu unpigment; 1-cu approximately 7.5x as long as cu-a. Hind femur approximately 4.2x as long as its widest width. Ratio of length of hind tarsomeres 1:2:3:4:5 is 3.7:1.4:1.1:0.7:1.0, first tarsomere evidently thick, 9.5x as long as widest width. Tarsal claw weak, without tooth. Propodeum ( Fig. 6 ) with complete, strong anterior transverse, median longitudinal and pleural carinae. Costula evenly arched downwards. Area basalis small, smooth, convergent backwardly. Area superomedia combined with area petiolaris, median portion of combined area with indistinct transverse wrinkles. First lateral area almost smooth, with distinct fine punctures. Pleural area coarse, densely vaguely punctate. Propodeal spiracle small, circular, connected with pleural carina by a distinct carina.

Metasoma. First to third tergites almost smooth, shiny; apical halves and lateral portions of subsequent tergites with sparse short hairs. First tergite ( Fig. 7 ) about 2.1x as long as apical width; dorsolateral carinae complete; suture separating from sternite at 0.3 the distance from base of the tergite lying slightly below the mid-height of the segment. Spiracle circular, small, located at apical 0.4 of first tergum. Subbase of first sternite convex, smooth, shiny. Second tergite ( Fig. 8 ) approximately 1.1x as long as apical width. Lateral sides of third to fifth tergites parallel. Third tergite approximately 0.9x as long as apical width. Fourth tergite approximately as long as third tergite, 0.85x as long as basal width, finely coriaceous. Ovipositor sheath approximately as long as first tergite, 0.8x as long as hind femur, 0.6x length of hind tibia. Ovipositor straight, with distinct subapical dorsal notch.

Color ( Fig. 1 ). Black, except the following. Basal portion of mandible buff, teeth black brown. Maxillary and labial palpi dark yellow. Fore and mid femora dark brown; outer side of tibia buff, inner side brown; tarsi buff, most of fifth tarsomere brown black. Outer side of hind femur brown black, inner side dark red. Basal end and median section of hind tibia ivory-white, subbase dark brown, apical portion brown black. Basal portions of hind tarsomeres buff, apical brown black. Tegula yellow. Stigma yellow brown. Veins black brown.

Cocoon ( Fig. 9 ). Length approximately 7.5 mm. Whitish grey.

Host. Bazaria turensis Ragonot, 1887 ( Lepidoptera , Pyralididae ).

Host plant. Nitraria tangutorum Bobr.

Remarks. This new species is similar to S. exartemae (Uchida, 1928) , but can be distinguished from the latter by the following combination of characters: upper tooth of mandible as long as lower tooth; ovipositor sheath approximately 0.8x as long as hind femur; ovipositor straight; outside of hind femur brownish black, inner side darkish red; tergite 2 black, without white or brown band. S. exartemae : upper tooth of mandible longer than lower tooth; ovipositor sheath approximately 2.3x as long as hind femur; ovipositor strongly upcurving; hind femur reddish brown, its apical end brownish black; tergite 2 black, always with apical white or brown band.

Figures

FIGURES 1 – 9. Sinophorus bazariae Sheng, sp. n. Female. Holotype. 1. Habitus, lateral view. 2. Head, anterior view. 3. Head, dorsal view. 4. Mesoscutum. 5. Mesopleuron. 6. Propodeum. 7. First tergite, lateral view. 8. Second and fourth tergites. 9. Cocoon.