Pteromalus bedeguaris Thomson 1878
Creators: name: Gómez, Jose F.
name: Nieves-Aldrey, Jose Luis
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Pteromalus
Pteromalus bedeguaris

description: Pteromalus bedeguaris (Thomson, 1878)
Measurements. Body length: 1.1–3.2 (2.1) mm, maximum width: 0.53–1.2 (0.7) mm (n=48) ex gall Diplolepis mayri (Schlechtendal); body length: 0.75–3.3 (1.8) mm, maximum width: 0.6–0.8 (0.65) mm (n=3) ex gall Diplolepis rosae (Linnaeus); body length: 1.4–1.55 (1.45) mm, maximum width: 0.6 mm ex gall Diplolepis spinosissimae (Giraud) (n=2).
Description. Whitish or yellowish; integument mostly smooth on all body segments, except first thoracic which appears striated-rugose and with a row of very short spiniform setae (Figs 4 D, 5D, 6D); body 2× as long as broad, broadest at thoracic segments, tapering gradually posteriorly (Fig. 4 D); anal segment truncated, broader than long; body ventrally curved in lateral view (Fig. 5 D); ventral margins of body segments straight.
Head (anterior view) (Fig. 6 D) rounded, 1.1× as broad as high; upper margin of vertex also rounded; medial area of vertex slightly incised; head setae very short and indistinct; antero-medial setae of antennal area slightly above antennae; clypeal setae very short; antennae button-like; ventral margin of clypeus curved; labrum trapezoid, 4× as long as wide (Figs 6 D, 7D).
Mouth parts (Fig. 7 D). Maxillae differentiated from labium; two pairs of maxillary palps visible with two pairs of very short setae; labium semicircular, convex and not collapsed, with a pair of inconspicuous setae.
Mandibles (Fig. 8 C). Tooth 1.8× longer than wide measured at its base; apex sharp, very thin and slender; angle separating inner side of tooth and base of mandible obtuse (>90º) with outer margin of tooth almost straight but with a broad, basal emargination.
Biology. Nordlander (1973) provided a detailed description of the terminal larva of the species. This species (Fig. 9 I) parasitizes primarily Diplolepis larvae on which it is a common ectoparasitoid and it has been reported also as a facultative hyperparasitoid of Glyphomerus stigma (Fabricius) (Torymidae) (Redfern & Askew 1992, Gómez et al. 2008). Another inhabitant of Diplolepis galls is Orthopelma mediator (Thunburg) (Ichneumonidae) which may also act as a secondary hyperparasitoid of P. bedeguaris. With Caenacis inflexa (Ratzeburg) (not included in this study), it is the only species of pteromalid reared from galls of Diplolepis on rose shrubs (Fig. 9 H).
Material examined. ex gall D. mayri on Rosa sp., Spain, Guadalajara: Retiendas (n=44) J. L. Nieves leg.; Soria: Cabrejas del Pinar (n=2), Embalse de la Cuerda del Pozo: (n=2). ex gall D. Rosae on Rosa sp., Spain, Leon: Valporquero (n=1); Madrid: Casa Eulogio (n=2) J. L. Nieves leg. ex gall D. Spinosissimae on Rosa sp., France, Pyrénées Atlantiques: Vallée D’Ossau (n=2) J. L. Nieves leg.
description: Published as part of Gómez, Jose F. & Nieves-Aldrey, Jose Luis, 2012, Notes on the larval morphology of Pteromalidae (Hymenoptera: Chalcidoidea) species parasitoids of gall wasps (Hymenoptera: Cynipidae) in Europe, pp. 39-55 in Zootaxa 3189 on pages 51-52, DOI: 10.5281/zenodo.280035