Xynobius Foerster, 1863,

Wu, Qiong, Achterberg, Cornelis van, Sheng, Ying-yi & Chen, Xue-xin, 2018, A new genus from Vietnam (Hymenoptera, Braconidae, Opiinae), and the description of two new species, Journal of Hymenoptera Research 66, pp. 1-13: 1

publication ID

http://dx.doi.org/10.3897/jhr.66.28881

publication LSID

lsid:zoobank.org:pub:155C57C6-E09F-49A8-BFB7-6FF4F7E82EA8

persistent identifier

http://treatment.plazi.org/id/75F456F4-8D5A-099E-38C3-FEBC17FA2253

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Xynobius Foerster, 1863
status

 

Genus Xynobius Foerster, 1863  Figs 12-14, 15-23

Xynobius  Foerster, 1863: 235; Li et al. 2013: 171. Type species (by original designation): Xynobius pallipes  Foerster, 1863 (= Opius caelatus  Haliday, 1837) [examined].

Aclisis  Foerster, 1863: 267; Fischer 1972: 68 (as synonym of Opius  Wesmael, 1835); van Achterberg 2004a: 315 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Aclisis isomera  Foerster, 1863 (= Opius caelatus  Haliday, 1837) [examined].

Holconotus  Foerster, 1863: 259 (not Schmidt-Göbel, 1846); Fischer 1972: 67, 102; van Achterberg 2004a: 315 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Opius comatus  Wesmael, 1835) [examined].

Aulonotus  Ashmead, 1900: 368 (new name for Holconotus  Foerster, 1863); Fischer 1972: 68, 102 (as subgenus of Opius  Wesmael, 1835); van Achterberg 2004a: 315 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Opius comatus  Wesmael, 1835) [examined].

Eristernaulax  Viereck, 1913: 362; Fischer 1972: 68 (as synonym of Opius  Wesmael, 1835, 102 (as synonym of subgenus Aulonotus  Ashmead, 1900); van Achterberg 2004a: 315 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Eristernaulax leucotaenia  Viereck, 1914) [examined].

Stigmatopoea  Fischer, 1986: 610, 611 (as subgenus of Opius  Wesmael, 1835), 1998: 25 (key to species); Wharton 1988: 356; 2006: 338 (as subgenus of Eurytenes  Foerster, 1863; possible paraphyly in Xynobius  ); van Achterberg 2004a: 315 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Opius macrocerus  Thomson, 1895 [examined].

Xynobiotenes  Fischer, 1998: 23 (as subgenus of Eurytenes  Foerster, 1863); Li et al. 2013: 171 (as synonym of Xynobius  Foerster, 1863). Type species (by original designation): Opius scutellatus  Fischer, 1962 [examined].

Diagnosis

(modified after Li et al. 2013). Hypoclypeal depression present, often large, and medially ventral margin of clypeus above upper level of condyli of mandibles ("subcyclostome condition") or near it (Fig. 20), rarely hypoclypeal depression nearly absent; occipital carina widely to narrowly interrupted dorsally or nearly contiguous (Fig. 18); mandible simple basally, at most with a narrow ventral carina (Fig. 20); notauli variable; medio-posterior depression of mesoscutum present (Fig. 14); precoxal sulcus present, smooth or crenulate, no indication of sternaulus; vein m-cu of fore wing usually (sub)parallel to vein 1-M (Fig. 12); vein r more or less angled with vein 3-SR of fore wing and distinctly shorter than vein 2-SR (Fig. 15); vein 3-SR distinctly longer than vein 2-SR; pterostigma long and narrow and more or less widened towards its apex, elliptical or triangular (Fig. 15); dorsope present, often bordered by lamelliform carinae (Fig. 19); second metasomal tergite striate or smooth; hypopygium of ♀ at most slightly incised.

Biology.

Koinobiont endoparasitoids of leaf miners of Anthomyiidae  , Tephritidae  and Scathophagidae  ( Yu et al. 2016).

Notes.

Wharton (1988) treated Xynobius  as a synonym of the genus Opius  Wesmael, 1837, but it has a distinct dorsope and according to the limited available molecular data ( Li et al. 2013) it is not closely related to Opius  s.s. as treated by Li et al. (2013). Part of it (the subgenus Stigmatopoea  Fischer, 1986) has been included by Fischer (1998) and Weng and Chen (2005) in the genus Eurytenes  Foerster, 1863, but it seems to fit better in Xynobius  ( van Achterberg 2004a; Li et al. 2013). Wharton (2006) and Walker and Wharton (2011) placed Xynobius  as a subgenus of Eurytenes  , but we prefer to keep them separated till more is known about their relationships.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Braconidae

Loc

Xynobius Foerster, 1863

Wu, Qiong, Achterberg, Cornelis van, Sheng, Ying-yi & Chen, Xue-xin 2018
2018
Loc

Xynobiotenes

Fischer 1998
1998
Loc

Stigmatopoea

Fischer 1987
1987
Loc

Eristernaulax

Viereck 1913
1913
Loc

Eristernaulax leucotaenia

Viereck 1913
1913
Loc

Aulonotus

Ashmead 1900
1900
Loc

Aclisis

Förster 1862
1862
Loc

Aclisis isomera

Förster 1862
1862