Parastephanellus Enderlein

Tan, Jiang-Li, Achterberg, Cornelis Van, Tan, Qing-Qing, Zhou, Tong & Li, Tao, 2018, Parastephanellus Enderlein (Hymenoptera: Stephanidae) revisited, with description of two new species from China, Zootaxa 4459 (2), pp. 327-349: 328-329

publication ID

https://doi.org/10.11646/zootaxa.4459.2.7

publication LSID

lsid:zoobank.org:pub:80274354-1EC7-4E81-A672-A01259FB66C2

persistent identifier

http://treatment.plazi.org/id/038D879A-7A09-FFBA-FF68-AD550AEBB7D3

treatment provided by

Plazi

scientific name

Parastephanellus Enderlein
status

 

Key to species of the genus Parastephanellus Enderlein  from China

1 Medio-anteriorly pronotum steeply arising behind neck ( Figs 19 View Figure , 27 View Figure , 63 View Figure ); emargination of pygidial area of ♀ wide ( Figs 22 View Figure , 66 View Figure ); vein 1-M of fore wing 1.1–1.5 × (rarely up to 1.6 x) vein 1-SR ( Figs 18 View Figure , 62 View Figure ); pale streak of temple rather narrow dorsally and distinctly remaining removed from occipital carina ( Figs 26 View Figure , 69 View Figure ); [ovipositor sheath 1.4–1.8 × as long as body; frons of ♀ largely dark brown, but yellowish in ♂; sclerotized part of vein 2-M of fore wing surpassing level of apex of vein r ( Figs 18 View Figure , 62 View Figure ); temples moderately angulate to rounded in dorsal view ( Figs 25 View Figure , 68 View Figure )]......................................... 2 - Medio-anteriorly pronotum gradually arising behind neck ( Figs 4 View Figure , 12 View Figure ); emargination of pygidial area of ♀ usually narrower ( Figs 6 View Figure , 54 View Figure , 71 View Figure , 93 View Figure ); vein 1-M of fore wing 1.5–2.2 × vein 1-SR ( Figs 3 View Figure , 11 View Figure , 45 View Figure ; but 1.3–1.5 × in P. yixiwui  ; Fig. 72 View Figure ); pale streak of temple variable, but usually close to occipital carina ( Figs 9 View Figure , 17 View Figure , 46 View Figure , 57 View Figure , 99 View Figure ), except in P. yixiwui  ( Figs 80 View Figure , 85, 89 View Figure )....... 3

2 Hind coxa of ♀ 2.1–2.2 × as long as wide in dorso-lateral view ( Fig. 21 View Figure ; ♂ up to 2.6 ×, measured over flat aciculate or coriaceous area in dorso-lateral view: Fig. 2 View Figure ); first metasomal tergite 4.4–5.5 × as long as its maximum width ( Fig. 30 View Figure ); hind tibia 1.2 × as long as hind femur ( Fig. 23 View Figure ); temple behind pale streak chestnut to orange brown ( Fig. 26 View Figure ); vein r of fore wing ends near level of apex of pterostigma ( Figs 18 View Figure , 28 View Figure ); [middle basitarsus of ♀ 6–7 × as long as its medial width; first discal cell of fore wing comparatively narrow and its length approx. 3.1 × as long as vein 1-M ( Fig. 18 View Figure )]......................................................................................... P. brevicoxalis Hong, van Achterberg & Xu, 2011 

- Hind coxa of ♀ 2.7–3.0 × as long as wide in dorso-lateral view ( Fig. 65 View Figure ); first metasomal tergite 6.8–7.5 × as long as its maximum width; hind tibia 1.1 × as long as hind femur; temple behind pale streak dark brown ( Fig. 69 View Figure ); vein r of fore wing ends far behind level of apex of pterostigma ( Fig. 62 View Figure )................................... P. matsumotoi van Achterberg, 2006 

3 Pterostigma obtuse apically ( Fig. 92 View Figure ); pronotum stout in dorsal view ( Fig. 94 View Figure ); yellowish streak of temple reaching occipital carina dorsally ( Fig. 98 View Figure ); pronotum below tegulae with some rugulae ( Fig. 93 View Figure ); pygidial area of ♀ not protruding latero-api- cally and emargination shallow ( Fig. 95 View Figure ); ovipositor sheath approximately as long as body; first metasomal tergite of ♀ approximately 4 × as long as its maximum width; [vein 1-M of fore wing 2.2 × vein 1-SR and 1.3 × vein m-cu; propodeum medially densely foveolate and interspaces small; laterally pronotum dark brown ( Fig. 91 View Figure )]........................................................................................ P. zhejiangensis Hong, van Achterberg & Xu, 2011 

- Pterostigma roundly narrowed apically ( Figs 45 View Figure , 72 View Figure ); pronotum relatively slender in dorsal view ( Figs 48 View Figure , 74 View Figure ) or robust ( Figs 13 View Figure , 37 View Figure ); yellowish streak of temple remain separated from occipital carina in dorsal view ( Figs. 53 View Figure , 60 View Figure , 79 View Figure ); pronotum below tegulae costate ( Fig. 63 View Figure ); pygidial area of ♀ distinctly protruding latero-apically and emargination moderately deep ( Figs 6 View Figure , 71 View Figure ), but intermediate in P. evexus  ( Fig. 54 View Figure ); ovipositor sheath 1.3–1.7 × as long as body (unknown of P. brevistigma  ); if about as long as body ( P. evexus  ) then first metasomal tergite of ♀ 9–10 × as long as its maximum width ( Fig. 44 View Figure ).............. 4

4 Vein 1-SR of fore wing weakly angled with vein 1-M and about as long as vein 2-M+CU1 ( Fig. 35 View Figure ); first discal cell of fore wing narrow and distinctly parallel-sided ( Fig. 35 View Figure ); vein m-cu of fore wing about as long as vein 2-SR+M ( Fig. 35 View Figure ); pronotum yellowish brown and distinctly paler than mesoscutum ( Fig. 36 View Figure ); [vein 1-M of fore wing 2.1 × vein 1-SR and 1.1 × vein m-cu; temple yellowish posteriorly and ivory streak slightly contrasting with it ( Fig. 42 View Figure ); anterior part of mesoscutum in dorsal view rather shiny and (except for 3 crenulate grooves) largely smooth ( Fig. 36 View Figure ); frons regularly transversely rugose medially; only male holotype known from Taiwan, males from continental China belong to P. austrochinensis Belokobylskij  ]......................................................................................... P. brevistigma Enderlein, 1913 

- Vein 1-SR of fore wing strongly angled with vein 1-M and 2–4 × as long as vein 2-M+CU1 ( Figs 3 View Figure , 11 45View FIGURES 11–17View FIGURES 18–26View FIGURE 27View FIGURES 28–34View FIGURES 35–42View FIGURES 43-44View FIGURES 45–54, 72 View Figure ), rarely shorter; first discal cell of fore wing moderately wide and less parallel-sided ( Fig. 3 View Figure , 11 View Figure , 72 View Figure ); vein m-cu of fore wing much longer than vein 2-SR+M ( Figs 3 View Figure , 11 View Figure , 72 View Figure ); pronotum variable, usually dark brown or blackish, similar to colour of mesoscutum ( Figs 46 View Figure , 73 View Figure ) or at least dorsally so ( Figs 5 View Figure , 48 View Figure )...................................................................... 5

5 Frons of ♀ narrow ( Fig. 7 View Figure ); vein cu-a of fore wing sinuate and posteriorly distinctly reclivous ( Fig. 3 View Figure ); vein 1-M of fore wing 1.3 × vein m-cu ( Fig. 3 View Figure ); hind femur shiny and largely (except medially) smooth; yellowish streak of temple surpassing upper level of occipital carina in dorsal view ( Fig. 8 View Figure ); first metasomal tergite of ♀ approximately 8.3 × as long as its maximum width; pygidial area of ♀ distinctly protruding latero-apically ( Fig. 6 View Figure ); [temples of ♀ distinctly angulate in dorsal view ( Fig. 8 View Figure ); laterally pronotum chestnut brown ( Fig. 4 View Figure ); basal part of pterostigma about 1.5 × as long as vein r ( Fig. 3 View Figure ); distance from dorsally widened pale streak on temple to occipital carina in dorsal view less than width of streak ( Fig. 8 View Figure )]...................................................................................... P. angulatus Hong, van Achterberg & Xu, 2011 

- Frons of ♀ moderately wide ( Figs 52 View Figure , 78 View Figure ); vein cu-a of fore wing nearly straight and posteriorly slightly reclivous ( Figs 11 View Figure , 45 View Figure , 72 View Figure ); vein 1-M of fore wing 0.9–1.1 × vein m-cu ( Figs 11 View Figure , 45 View Figure , 72 View Figure ), rarely 1.2 ×; hind femur with satin sheen and largely microsculptured ( Figs 14 View Figure , 50 View Figure , 77 View Figure ); size of yellowish streak of temple variable ( Figs 16 View Figure , 53 View Figure , 60 View Figure , 79 View Figure ); first metasomal tergite of ♀ 4.8– 7.2 × as long as its maximum width ( Fig. 75 View Figure ), if up to 9.5–10.9 × as long as wide ( Fig. 44 View Figure ) then pygidial area of ♀ hardly protruding latero-apically ( Fig. 54 View Figure )6

6 First metasomal tergite of ♀ very slender, approx. 9.5 × as long as wide ( Fig. 44 View Figure ), of ♂ 8.7–10.9 ×; ovipositor sheath approximately as long as body and 1.8 × as long as fore wing; hind femur in front of middle tooth hardly dentate ( Figs 43 View Figure , 50 View Figure , 55 View Figure ); sclerotized part of vein 2-M of fore wing up to level of apex of vein r ( Fig. 45 View Figure ); pygidial area of ♀ not protruding and rounded latero-apically ( Figs 43 View Figure , 54 View Figure ); temples of ♀ strongly angulate in dorsal view ( Fig. 53 View Figure , but rounded in ♂: Fig. 60 View Figure ); [posterior part of pronotum and mesoscutum moderately high in lateral view ( Fig. 43 View Figure )]............................... P. evexus  sp. n.

- First metasomal tergite of ♀ less slender, 6.2–7.2 × as long as wide ( Fig. 75 View Figure ), of ♂ up to 8.7 ×; ovipositor sheath 1.4–1.7 × as long as body and 2.5–2.8 × as long as fore wing; hind femur in front of middle tooth distinctly dentate ( Figs 14 View Figure , 77 View Figure , 90 View Figure ); pygidial area of ♀ distinctly protruding and truncate latero-apically ( Fig. 71 View Figure ); temples of ♀ rounded to moderately angulate in dorsal view ( Fig. 79 View Figure ); sclerotized part of vein 2-M of fore wing surpassing level of apex of vein r ( Figs 11 View Figure , 72 View Figure )................. 7

7 Posterior part of pronotum very low ( Figs 73 View Figure , 85 View Figure ); frons of ♀ dark brown ( Fig. 78 View Figure ; yellow in ♂: 88); first metasomal tergite slender, 6.2–7.2 × as long as wide ( Fig. 75 View Figure ); pronotum black, and in dorsal view less robust and posterior part partly coarsely sculptured ( Fig. 74 View Figure )....................................................................... P. yixiwui  sp. n.

- Posterior part of pronotum comparatively high ( Fig. 12 View Figure ); frons of both sexes brownish yellow ( Fig. 15 View Figure ); first metasomal tergite rather robust, approximately 5 × as long as its maximum width; pronotum orange brown, and in dorsal view robust and posterior part superficially sculptured ( Fig. 13 View Figure ); [frons transversely rugose; ivory streak of temple hardly contrasting with yellowish remainder of temple ( Fig. 17 View Figure ; ♂, but slightly more in ♀)]............... P. austrochinensis Belokobylskij, 1995  , reinstated