Cynipidae associated with Quercus collected in Corsica with the description of a new Plagiotrochus species (Hymenoptera, Cynipoidea) Author Pujade-Villar, Juli Barcelona, Facultat de Biologia, Departament de Biologia Animal, Avda. Diagonal, 645, E- 08028 Barcelona (Spain) pujade @ porthos. bio. ub. es Author Villemant, Claire Muséum national d’Histoire naturelle, Laboratoire d’Entomologie, UPRESA 8043 du CNRS, 45 rue Buffon, F- 75231 Paris cedex 05 (France) villeman @ mnhn. fr villeman@mnhn.fr Author Andreï-Ruiz, Marie-Cécile Muséum national d’Histoire naturelle, Laboratoire d’Entomologie 45 rue Buffon, F- 75231 Paris cedex 05 (France) text Zoosystema 2000 22 4 835 846 journal article 10.5281/zenodo.4524758 1638-9387 8B4BFFDFFFCAED69B443FFE63560FFD7 4524758 Plagiotrochus cardiguensis (Tavares, 1928) MATERIAL EXAMINED. — Pirio Vallée du Fango. Malaise trap, 27.V-3.VI.1997 , 4 ♁♁, 1 ♀ (material deposited in MNHN ). REMARKS Only recorded from Andorra , Portugal and Spain (Tavares 1928; Nieves-Aldrey 1989; Pujade-Villar 1994). The galls are small, located on catkins of Q. ilex or rarely Q. coccifera (Pujade-Villar & Ros-Farré, 1998) . The agamic form is unknown. Plagiotrochus nr. cardiguensis (Tavares, 1928) MATERIAL EXAMINED. — Corse Bastilicaccia. Malaise trap , 24-31.V.1992 (R1/MS), 1 ♀ ; 31.V-7.VI.1996 (R2/MH), 1 ♀ ; 7-14.VI.1996 (R3/MS), 1 agamic ♀ ; twig gall, Q. suber , (29.V.96) 5.VI.1996 , 1 agamic ♀ . Pont Génois. ( Q. suber ), gall No. 15, 30.V.1995 , 2 ♁♁ & 2 ♀ ♀ ; (8): 1 ♀ . FIG. 2. — SEM pictures of Plagiotrochus vilageliui n. sp agamic form; A , head, frontal view; B , dorsal view; C -D , mesosoma; C , lateral view; D , propodeum. Scale bars: A, D, 200 µm; B, C, 500 µm. Suarte. ( Q. suber ), 30.V.95, 1 ♀ . Sartène-Granace. gall No. 3, 28.V.95, 1 ♀ . Material deposited in UB. REMARKS These specimens are more robust than typical P. cardiguensis , but we have not found any significant morphological differences and therefore we consider them conspecific with P. cardiguensis even though the galls are located in a different place and on a different host (on thin branches of Q. suber rather than on catkins of Q. ilex ) than those of typical P. cardiguensis .