Revision on Palaearctic species of Periclistus Foerster with description of a new species and its host plant gall (Hymenoptera, Cynipidae) Author Pujade-Villar, Juli Author Wang, Yiping Author Guo, Rui Author Chen, Xuexin text ZooKeys 2016 596 65 75 http://dx.doi.org/10.3897/zookeys.596.5945 journal article http://dx.doi.org/10.3897/zookeys.596.5945 1313-2970-596-65 F6D270299C6F405F94FBE0215214C1F5 F6D270299C6F405F94FBE0215214C1F5 Taxon classification Animalia Hymenoptera Cynipidae Periclistus capillatus Belizin, 1968 Periclistus capillatus Belizin, 1968: 718-719. Type material. 1 ♀ deposited in ZIN, with the following labels: "Kedrovaya pad' [Nature Reserve] Primorie [= Primorskiy kray] O. Kovalev 17 V 60" (black label, handwritten in Russian), "From galls on leaves of Rosa " (red label, handwritten in Russian), " Periclistus capillatus ♀ m. V. Belizin det" (black label, handwritten), "Primorskiy kray, 'Kedrovaya pad' 'Nature Reserve. From galls on Rosa (leaves). 17. V. 60 g. O.V. Kovalev" (black label, handwritten in Russian), "Lectotype ♀ of Periclistus capillatus Belizin, 1968, det JP-V 2015" (red label, printed). Diagnosis. This species is characterized by the following characters: black head and mesosoma, chestnut brown to black metasoma, testaceous antennae and legs; 12-segmented antenna, F1 and F2 subequal in length (4:5); an alutaceous mesoscutum with piliferous points and sparse pubescence; notauli and posterior medial sulcus present, short, both extending to 1/4 of total scutum length; parapsidal lines and anterior parallel lines present; smooth mesopleuron; closed radial cell (although both R1 and its projection in margin of forewing nearly inconspicuous), short, 3 times as long as broad; areola visible; metasomal tergites fused (T2+T3) and smooth, with an anterolateral patch of white setae; the subsequent segments are micropunctuated and glabrous. Comments. This species presents characters belonging to Asian species (scutal and mesopleural sculpture) and characters belonging to European species (radial cell length and shape). A key provided at the end differentiates this species from its congeners.