The Western Palaearctic species of Psilophrys Mayr (Hymenoptera, Chalcidoidea: Encyrtidae), parasitoids of kermesids (Hemiptera, Coccoidea: Kermesidae) attacking oaks (Quercus spp.) Author Japoshvili, Giorgi Author Noyes, John S. text Journal of Natural History 2006 2006-12-01 40 29 - 31 1793 1800 http://dx.doi.org/10.1080/00222930601046436 journal article 10.1080/00222930601046436 1464-5262 5232493 Psilophrys aristotelei sp. n. ( Figures 1–3 ) Diagnosis Female holotype . Length 1.84 mm . Body generally dark brown with a metallic silver-green reflection. All legs dark brown, only fore tibia dusty yellow. Fore wing virtually hyaline, but with a dark spot beneath marginal vein. Head about 1.1× as wide as high and about 1.9× as wide as FV; FV about 1.9× as wide as long; OOL equal to OCL and POD; ocelli forming an obtuse angle; antenna with scape about 1.50–1.65× as long as club and 6× as long as wide, other proportions as in Figure 1 . Relative measurements: HW 55, FV 29, FVL 15, SL 24, SW 4.5, AOD 5, POD 4, POL 17, AOL 8. Thorax about 1.2× as long as gaster excluding ovipositor; mesoscutum about 1.2× as wide as long; scutellum about 1.1× as wide as long; fore wing ( Figure 2 ) about 2.3× as long as wide; marginal vein subquadrate; hind wing about 3.6× as long as wide. Relative measurements: MSW 38, MSL 31, SCW 32, SCL 29. Ovipositor (as in Figure 3 ) hardly exserted, the exserted part at most one-third as long as mid tibial spur. Female paratype (slide-mounted). Toruli separated by own lengths and from anterior ocellus by about 2.5× distance of torulus from eye margin; eye about 1.5× as long as malar space, the latter rounded in facial view; mouth width subequal to eye length. Sculpture on mesoscutum and scutellum similar, composed of small rounded cells. Syntergum about 3× as wide as long. Relative measurements: TA 27 , TE 12 , EL 22 , MS 15 , MW 21 , HW 52 , HH 47 , OL 67 , ML 50, OPL 51 , OPW 18 , GL 10 , MSL 18 . Variation. The length varies from 1.4 to 1.9 mm , otherwise little variation in material examined. Male. Unknown. Material examined Holotype ♀ : Greece , Olympia, Ex Kermes sp. on Quercus ilex , 30 April to 7 June 1984 (J. M. Cox). Paratypes : Greece , 22♀ , same data as holotype . Holotype and paratypes in BMNH, one paratype in IZGAS. Comments Psilophrys aristotelei is most similar to tenuicornis and bella , all three species having similar body shape, general colour, and wing venation. They can be separated using the characters given in Table I .