Campodorus punctatus Sheng, Sun & Li, 2020

Sun, Shu-Ping, Li, Tao, Sheng, Mao-Ling & Lü, Jun, 2020, The species of Campodorus Förster, 1869 and a related species (Hymenoptera, Ichneumonidae) from China, European Journal of Taxonomy 658 (658), pp. 1-26 : 14-17

Campodorus punctatus Sheng, Sun & Li sp. nov.

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Figs 26–34

Diagnosis

Propodeum ( Fig. 32 ) shagreended except shiny areas basalis, superomedia and petiolaris; area basalis separated from area superomedia by strong transverse carina. Area superomedia trapezoidal, almost as long as maximum width. Metasomal tergites ( Fig. 33 ) distinctly shagreened, without punctures. First tergite approximately 1.2 × as long as posterior width. Head except clypeus, mesosoma and metasomal tergites ( Figs 33–34 ) almost entirely black.

Differential diagnosis

The new species is similar to C. crassitarsus ( Uchida, 1935) , but can be distinguished from the latter by the following combination of characters: apical half of clypeus with dense large punctures; median longitudinal carinae of propodeum distinctly narrowed medially ( Fig. 32 ); area superomedia and area basalis separated by strong carina; ovipositor sheath ( Fig. 34 ) 3.0 × as long as maximum width, dorsomedian portion distinctly dilated. Campodorus crassitarsus : clypeus almost entirely smooth; median longitudinal carinae of propodeum strongly divergent posteriorly; area superomedia and area basalis confluent (not separated by a carina); ovipositor sheath 2.8 × as long as maximum width, dorsal margin straight, not dilated.

Etymology

The specific name is derived from the clypeus with large punctures.

Material examined

Holotype

CHINA • ♀; Beijing, Mentougou; 22 Aug. 2008; Tao Wang leg.; GSFGPM.

Description

Female

MEASUREMENTS. Body length about 11.3 mm. Fore wing length about 8.7 mm. Ovipositor sheath length 0.7 mm.

HEAD. Inner margins of eyes parallel,distinctly concave near antennal sockets.Face ( Fig.27 )approximately 1.9 × as wide as long, shagreened, median portion with fine indistinct punctures; upper lateral portion slightly concave; upper margin with median small tubercle. Clypeus approximately 2.9 × as wide as long, shiny; its median portion apically strongly convex, with large dense punctures ( Fig. 27 ); median section of apical margin evenly distinctly concave. Mandible with sparse fine punctures and brown setae; upper tooth slightly wider and longer than lower tooth. Malar space shagreened, approximately 0.4 × as long as basal width of mandible. Gena ( Fig. 28 ), vertex ( Fig. 29 ) and frons slightly shagreened, with indistinct fine punctures. Gena evenly convergent posteriorly. Postocellar line approximately 0.6 × as long as ocular-ocellar line. Frons almost flat, shagreened. Antenna with 37 flagellomeres; ratio of length from first to fifth flagellomeres approximately: 1.8:1.2:1.1:1.0:1.0.

MESOSOMA. Anterior portion of pronotum ( Fig. 31 ) shagreened; lateral concavity shiny, with short wrinkles; upper-posterior portion shagreened. Mesoscutum ( Fig. 30 ), scutellum and postscutellum shagreened, with shallow sparse indistinct punctures. Scutoscutellar groove almost smooth, shiny. Postscutellum transverse. Mesopleuron ( Fig. 31 ) and metapleuron shagreened, slightly shiny, with fine indistinct punctures. Speculum large, smooth, shiny. Upper end of epicnemial carina approximately reaching to 0.7 distance to subtegular ridge. Metapleuron strongly convex. Ratio of length of hind tarsomeres from first to fifth approximately: 5.1:2.5:1.9:1.0:1.4. Wings slightly gray, hyaline. Fore wing with vein 1cu-a distal to M&RS approximately by 0.4 × length of 1cu-a. Postnervulus intercepted slightly below middle. Hind wing vein 1-cu slightly longer than cu-a. Propodeum ( Fig. 32 ) shagreened except shiny areas of basalis, superomedia and petiolaris; area basalis separated from area superomedia by strong transverse carina. Area basalis reversed trapezoidal. Area superomedia trapezoidal, almost as long as maximum width. Propodeal spiracle almost circular, located at anterior 0.25.

METASOMA. First two tergites shagreened. First tergite approximately 1.2 × as long as posterior width; dorsal median carina reaching beyond spiracle; spiracle small, circular, located approximately at anterior 0.4 of first tergite. Second tergite ( Fig. 33 ) approximately 0.8 × as long as anterior width, 0.7 × as long as posterior width. Third and subsequent tergites almost shiny, slightly shagreened, with short brownish gray setae. Ovipositor sheath ( Fig. 34 ) approximately 3.0 × as long as its maximum width, from middle narrowed posteriorly. Ovipositor straight, compressed.

COLORATION ( Fig. 26 ). Black, except for following: basal half of clypeus yellow, apical half yellowish brown ( Fig. 27 ); mandible, except teeth, maxillary palpi, labial palpi, tegulae and subbasal spot of hind tibia yellow; fore and middle legs except yellowish trochanters, hind coxae, trochanters and femur except apex brownish red; antennae, pterostigma and veins brownish black. Sternites 1-3 mainly brownish black medially, black laterally. Sternites 4-6 black.

Figures

Fig. 26. Campodorus punctatus Sheng, Sun & Li sp. nov., holotype, ♀, habitus, lateral view (GSFGPM).

Figs 27–34. Campodorus punctatus Sheng, Sun & Li sp. nov., holotype, ♀ (GSFGPM). 27. Head, anterior view. 28. Head, lateral view. 29. Head, dorsal view. 30. Mesoscutum. 31. Mesosoma, lateral view. 32. Propodeum. 33. Tergites 2–3, dorsal view. 34. Apical portion of metasoma, lateral view.