Arthrolytus nanus, Askew & Nieves Aldrey, 1982
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publication ID |
https://doi.org/ 10.5281/zenodo.3985426 |
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DOI |
https://doi.org/10.5281/zenodo.4335314 |
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persistent identifier |
https://treatment.plazi.org/id/2B2B7368-FF93-FFE9-FF66-1EC7FBC7FB8F |
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treatment provided by |
Valdenar |
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scientific name |
Arthrolytus nanus |
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Arthrolytus nanus View in CoL ASKEW & NIEVES ALDREY, 1982 ( Figs 1c View Fig , 2e View Fig , 3f View Fig 1, f2)
T y p e m a t e r i a l s: Holotype ♀. Spain, Salamanca, Dehesa de Candelario (UTM. 30TTK6670), ex gall of Andricus quercusradicis (FABRICIUS) (Hym. Cynipidae ) on Quercus pyrenaica WILLD., gall collected 19.x.1979 1-7.i.1980. Leg. J. L. Nieves, in coll. Brit. Mus. (Nat. Hist.). Paratypes: 1 ♀, 2♂♂, same data as holotype; 1 ♀, 3♂♂, same locality and host as holotype, coll. 4.x.1980, emerged x-xi. 1980, leg. J. L. Nieves; 1♂, Spain, Salamanca, Linares de Riofrio, ex gall A. quercusradicis coll. 28. iii.1978, emerged 7-15.vi.1978, leg. J. L. Nieves; 1♂, France, Vienne, Poitiers, ex gall Neuroterus albipes (SCHENCK) (Hym. Cynipidae ) in second year (1969?) of gall, leg. F. Barbotin; 1 ♀ England, Berkshire, Wytham Wood, from soil under oak trap, 30.vii.1951, G. C. Varley. In colls. BMNH, RRA and Dept. de Zoologia of Universidad de Salamanca.
D i a g n o s i s: ♀: Forewing ( Fig. 3f View Fig 1) with stigmal vein forming 40°angle to the postmarginal vein; measurements of m:pm:st as 5: 6: 4; pm 1.2x as long as marginal vein, and 1.5x stigmal vein; marginal vein 1.25x as long as stigmal vein. postmarginal vein 0.7x as long as marginal vein. Head in anterior view1.29x as broad as high; POL 1.6 OOL; malar space about 0.33x eye length. Antenna ( Fig. 1c View Fig ) with combined length of pedicel and flagellum equal to breadth of head; flagellum 1.63x length of scape; pedicel almost as long as the anelli plus first funicle; almost twice as long as wide and 1.5x as long as F1; F6 slightly transverse; club 2.5x as long as F1; Propodeum medially not quite 0.5 x as long as scutellum, median carina and lateral plicae indicated only anteriorly; median area about 2x as wide as long, reticulate. Forewing with a broad, arcuate, light brown band from marginal and stigmal veins, almost reaching posterior margin of wing. Legs stramineous to whitish, metallic colouration on legs absent, except on hind coxae on their outer aspects basally metallic; Body Length 1.6 mm
♂: Similar to ♀ except as follows: Antenna ( Fig. 2e View Fig ) with pedicel twice as long as wide, slightly longer than F1 (1.1x) and distinctly narrower than F1 (at most 0.67x); 1.2x as long as F1; flagellum 1.86x length of scape, F1 1.28x, F6 0.8x as long as wide; club 2.1x as long as F1. Forewing ( Fig. 3f View Fig 2) with the stigmal vein forming 470 angle to the postmarginal vein; Forewing with a fuscous spot. Legs stramineous to whitish, only hind coxae on their outer aspects basally metallic, pretarsi brown. Metasoma with basal tergite entirely pale testaceous. Body length 1.2-1.6 mm.
D i a g n o s i s:givenbyASKEW & NIEVES ALDREY (1982).
H o s t s: reared from gall of Andricus quercusradicis (FABRICIUS) (Hym. Cynipidae ) on Quercus pyrenaica WILLD., and from gall Neuroterus albipes (SCHENCK) (Hym. Cynipidae ) ( ASKEW & NIEVES ALDREY 1982).
D i s t r i b u t i o n: Europe: Spain, Salamanca, Dehesa de Candelario; France, Vienne, Poitiers; England, Berkshire, Wytham Wood ( ASKEW & NIEVES ALDREY 1982).
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