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 11 5228 5239 http://dx.doi.org/10.5281/zenodo.8074943 journal article 10.5281/zenodo.8074943 2754-9844 8074943 BCAD06E8-0AFE-46ED-B7FA-930983CD44C4 Sectiliclava isis Noyes & Hanson (Figs 1412-1419; Hab. E 208, G 209) Sectiliclava isis Noyes & Hanson, 1996 :122,123-124. Holotype E, Costa Rica , NHMUK, examined. DIAGNOSIS. Female (length about 1.4-1.8mm ): head generally metallic green or blue-green with violet areas especially in scrobal area; piliferous punctures conspicuous (Fig. 1412), but not contrasting, varying from slightly smaller to slightly larger than ocelli; lower face with setae slightly more dense than those on frontovertex and more conspicuous; thorax pale yellow to pale orange with pronotum, anterior part of mesoscutum and scutellum dark and metallic; hind femur pale orange; fore and mid tibiae yellow to pale orange, hind tibia pale orange with apex brown; all funicle segments (Fig. 1414) a little longer than broad, F6 subquadrate; apex of mandible oblique with 4 extremely short teeth (Fig. 1412); mesoscutum relatively dull with piliferous punctures shallow and indistinct, setae dark brown and conspicuous, sculpture shallow, fine, polygonally reticulate; scutellum with relatively deep, polygonally reticulate sculpture; fore leg with apical tarsomere (Fig. 1419) slightly longer than four basal tarsomeres; hind leg with apical tarsomere about as long as three basal tarsomeres; fore wing (Figs 1413, 1415) with postmarginal vein not reaching wing margin; hypopygium Fig, 1418); ovipositor Fig. 1416. Male (length about 1.6mm ): similar to female but for structure of antenna and genitalia; antenna (Fig. 1417) with flagellum filiform with all segments at least a little longer than broad, parallel-sided and clothed in setae that are shorter than diameter of segments; phallobase about 2.5X as long as broad; cuspis seta absent; aedeagus about 14.5X as long a broad, but very slender towards apex. DISTRIBUTION. Costa Rica . HOSTS. Unknown. MATERIAL EXAMINED. Type material. Holotype E: COSTA RICA , Puntarenas , RF Golfo Dulce , 24km W. of Piedras Blancas , 200m , i-iii.1991 ( P. Hanson ) . Paratypes : COSTA RICA , 1E, 2G, Puntarenas , same data as holotype but ivv.1991, ii.1992 and i-ii.1993 . Holotype and paratypes in NHMUK . Non type material. COSTA RICA , 1E, Puntarenas , Est. Altamira, Send a Casa Coca, LS 331750 574400, 1700m , #62096, 14.ii-16.iii.2001 ( D. Rubí ). Material in MZUCR . COMMENTS. This is the most distinctive species of Sectiliclava since the thorax is mostly yellow or pale orange, in all other species the thorax is mostly dark brown with a metallic sheen.