ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera) Author Noyes, John Stuart text Taxonomic Monographs on Neotropical Hymenoptera 2023 Oxford, England 2023-06-30 2 1 1 921 http://dx.doi.org/10.5281/zenodo.8074943 journal article 10.5281/zenodo.8074943 2754-9844 8074943 BCAD06E8-0AFE-46ED-B7FA-930983CD44C4 Psyllaephagus domitius Noyes & Hanson (Figs 1510-1512; Hab. E 222) Psyllaephagus domitius Noyes & Hanson, 1996 :126,129-130. Holotype E, Costa Rica , CNC, images examined. Female (length about 2.4mm ): head generally dark metallic green mixed purple; scape mostly pale orange, conspicuously paler than dark brown flagellum; mesoscutum black with weak blue sheen, scutellum dull, dark purple brown and coppery, apex and side metallic blue-green; tegula dark brown; fore and hind femora dark brown, mid femur yellow; fore and mid tibiae pale orange, mid tibia with a faint subbasal ring, hind tibia mostly dark brown; head about 3X frontovertex width and 2.8X as wide as mouth opening; clypeal margin slightly emarginate, more or less straight; piliferous punctures on frontovertex shallow and indistinct, hardly larger than eye facet; ocelli forming an angle of about 50°; posterior ocellus much closer to eye than occipital margin; scrobes very deep and elongate, separated from anterior ocellus by less than 0.5X length of torulus; antenna (Fig. 1510) with scape about 4.5X as long as broad and slightly longer than width of frontovertex; pedicel slightly shorter than F1; all funicle segments longer than broad; linear sensilla on F2-F6, or absent from F2; clava with segments becoming gradually shorter towards apex, sensory area slightly enlarged and forming a very slight, oblique, apical truncation; mandible with two sharp teeth and a truncation; mesoscutum and scutellum with similar, shallow polygonally reticulate sculpture, perhaps slightly deeper and coarser proximally on scutellum; scutellum convex; fore wing (Fig. 1511) about 2.4X as long as broad, marginal vein (Fig. 1512) about 2X as long as broad, costal cell with only a single line of setae dorsally, situated in apical half, linea calva open; ovipositor slightly exserted, the exserted part about 0.5X as long as mid tibial spur. Male : unknown. DISTRIBUTION. Costa Rica ( Noyes & Hanson, 1996 ). 583 HOSTS. Unknown. MATERIAL EXAMINED. Type material. Holotype E: COSTA RICA , Guanacaste , Guanacaste NP , Estacion Cacao , 950-1200m , 13.ii.1995 ( L. Masner ) . Holotype in CNC . COMMENTS. The unusually long funicle segments and relatively deep, elongate scrobes suggest that this species may be misplaced in Psyllaephagus .