Ctenopelma Holmgren, 1857

Sun, Shu-Ping, Sheng, Mao-Ling & Gao, Chun, 2019, The species of Ctenopelma Holmgren (Hymenoptera, Ichneumonidae) from China, European Journal of Taxonomy 545, pp. 1-31 : 2-4

publication ID	https://doi.org/ 10.5852/ejt.2019.545
publication LSID	lsid:zoobank.org:pub:DC2105E2-F6C5-4B49-928F-BFD3A361CC52
persistent identifier	https://treatment.plazi.org/id/E91387A4-FFD0-FFCB-D559-ACFBFA86D0FF
treatment provided by	Plazi
scientific name	Ctenopelma Holmgren, 1857
status

Treatment

Ctenopelma Holmgren, 1857 View in CoL View at ENA

Ctenopelma Holmgren, 1857: 117 View in CoL . Type species: Ctenopelma nigrum Holmgren, 1857 View in CoL .

Diagnosis

Clypeus slightly or strongly convex medially, its apical margin concave or almost truncate medially. Mandible large, lower tooth longer than or almost same length as upper tooth. Genal carina reaching to base of mandible. Median portion of antenna slightly thickened. Upper margin of pronotum paralleled with a more or less distinct groove. Claw pectinate. First tergite with large, deep glymma. Anterior lateral portion of second tergite from anterior margin to spiracle with longitudinal carina. Apical portion of female metasoma more or less compressed. Posterior margin of female tergite 8 distinctly projecting backward medially.

Key to species of Ctenopelma Holmgren, 1857 View in CoL known from China (females only)

1. Ovipositor sheath comparatively long, at least 10 × as long as its maximum width ( C. brevicorne Kuzin, 1950 View in CoL from Korea, Mongolia, Russian Far East and Transbaikalia has ovipositor sheath about 6 × as long as its maximum width) ................................................................................................... 2

– Ovipositor sheath comparatively short, at most 4 × as long as its maximum width ........................ 4

2. First tergite abruptly, strongly narrowed in front of spiracle, spiracle strongly convex. Postpetiole slightly to comparatively convex, shorter than its apical width. Second tergite shorter than its posterior width. Hind wing vein 1-cu distinctly shorter than cu-a ( Figs 43–53 View Figs 43–46 View Figs 47–51 View Figs 52–53 ) ................................ ............................................................................................. C. spiraculare Sheng, Sun & Li sp. nov.

– First tergite almost evenly convergent from posterior margin to base, spiracle not or slightly convex. Postpetiole normal, at most slightly convex, distinctly longer than its posterior width. Second tergite as long as or longer than its posterior width. Hind wing vein 1-cu longer, as long as, or slightly shorter than cu-a ............................................................................................................................... 3

3. Apical margin of clypeus distinctly concave. First tergite approximately 2.2 × as long as apical width. At least tergites 2 and 3 of metasoma red-brown ................... C. lucifer ( Gravenhorst, 1829)

– Apical margin of clypeus truncate. First tergite 2.6 to 2.7 × as long as apical width. Only tergite 2 red-brown. Hind tibia with wide median dull whitish marking ( Figs 24–34 View Figs 24–27 View Figs 28–34 ) .................................... ........................................................................................ C. rufofasciatum Sheng, Sun & Li sp. nov.

4. Ovipositor without subapical dorsal notch, apical half of ovipositor needle-shaped; basal half of ovipositor strongly and abruptly thickened. Claw not pectinate or indistinctly pectinate. Head except apical portion of clypeus and mandible, mesosoma except tegula, metasoma and all coxae black ... ........................................................................................................................................................... 5

– Ovipositor with subapical dorsal notch. Claw distinctly pectinate. Head, mesosoma, metasoma, or coxae with more or less yellow or red-brown coloration ................................................................. 6

5. Postpetiole, tergites 2 and 3 almost entirely shiny, with distinct punctures. Hind leg entirely black ( Figs 35–42 View Figs 35–37 View Figs 38–42 ) ........................................................................... C. pineatum Sheng, Sun & Li sp. nov.

– Postpetiole, tergite 2 and basal half of tergite 3 scabrous, without punctures. Hind leg, at least femur, red-brown ................................................................................................ C. nigrum Holmgren, 1857 View in CoL

6. Labium large, ligula long, conspicuously exposed below mandible. Areolet very small, with long stalk, 1.7 × as long as height of areolet. Median longitudinal carinae of propodeum between base and posterior transverse carina parallel; area superomedia separated from area petiolaris by distinct carina; lateral longitudinal carinae present. Basal 0.6 of claw distinctly pectinate ( Figs 1–11 View Figs 1–3 View Figs 4–7 View Figs 8–11 ) .............................................................................. C. labiatum Sheng, Sun & Li sp. nov.

– Labium small, ligula indistinct. Areolet comparatively large; without stalk, or of lesser height than areolet. Median longitudinal carinae of propodeum convergent anteriorly, or distinctly narrowed medially ( Fig. 19 View Figs 16–20 ); area superomedia often not separated from area petiolaris by carina; lateral longitudinal carina absent or present. Claw indistinctly or fully pectinate ...................................... 7

7. Lateral longitudinal carina of propodeum between anterior margin and posterior transverse carina complete and strong. Face slightly shagreened, with dense punctures. Body mainly black; coxae and hind femora red-brown .......................................................................... C. ruficoxator Aubert, 1987 View in CoL

– Lateral longitudinal carina of propodeum between basal margin and posterior transverse carina absent, or apical portion indistinctly present. Face distinctly shagreened, with sparse fine punctures. Body with distinct yellowish white, brown and yellowish brown spots .......................................... 8

8. Head mainly red-brown, with black spots. Mesosoma red-brown or yellow-brown, with irregular black spots. Metasoma red-brown or yellow-brown ( Figs 57–59 View Figs 57–59 ) .......... C. rufescentis Sheng, 2009

– Head black, or only face yellow. Mesosoma black ........................................................................... 9

9. Area superomedia and area petiolaris combined (not separated by carina). Lateral longitudinal carina of propodeum between anterior and posterior transverse carina absent. Face black .......................... ...................................................................................................... C. tomentosum ( Desvignes, 1856) View in CoL

– Area superomedia separated from area petiolaris by distinct carina. Lateral longitudinal carina of propodeum present partly, or absent. Face yellow .......................................................................... 10

10. Ovipositor sheath approximately 0.7 × as long as hind first tarsomere. Fore and middle coxae yellowbrown. Hind coxa mainly and hind femur entirely brown to red-brown ( Figs 54–56 View Figs 54–56 ) ...................... ..................................................................................................... C. melanothoracicum Sheng, 2009

– Ovipositor sheath almost as long as hind first tarsomere. All coxae and hind femur entirely black ( Figs 12–23 View Figs 12–15 View Figs 16–20 View Figs 21–23 ) ....................................................................................... C. lii Sheng, Sun & Li sp. nov.