Revision of world species of the genus Oreiscelio Kieffer (Hymenoptera, Platygastroidea, Platygastridae) Author Talamas, Elijah USDA / SEL, Washington, DC, United States of America Author Johnson, Norman Museum of Biological Diversity, Columbus, OH, United States of America Author van Noort, Simon Iziko South African Museum, Cape Town, South Africa Author Masner, Lubomir Agriculture and Agri-Food Canada, Ottawa, Ottawa, Canada Author Polaszek, Andrew Department of Entomology, The Natural History Museum, Cromwell Road, London, SW & D 11 - 46 Af-Adbf-E 48 A 9988 B 102 & Ff-F 027 - 445 F- 8417 - 90 Ab & AB & E 84 Eaf 59 Ad & F text ZooKeys 2009 2009-03-11 6 6 1 68 journal article 22689 10.3897/zookeys.6.67 3a36617b-9f27-4f96-abb7-1ca64270915e 1313–2970 576433 5F10C3D4-8F88-494F-BFC0-58FF92DCA39A Oreiscelio aequalis Talamas , sp. n. urn:lsid:zoobank.org:act: 1CD74834-8FE7-4CE4-BF04-15C09BD36F71 urn:lsid:biosci.ohio-state.edu:osuc_concepts:229879 Figures 25-30 ; Morphbank 12 Description . General: Body length of female: 3.3 mm (n=1). Body color: head and mesosoma black; metasoma dark brown to black. Antenna: Color of antennae in female: A1 black, A2–A6 pale brown, A7–A12 black. Seta on pedicel of antenna in female: present, reaching past apex of A3. Head: Color of setae on the head: yellow. Sculpture of dorsal frons between frontal carina and median ocellus: areolate. Preocellar pit in females: present as a distinct pit. Transverse rugae at vertex: present. Sculpture of posterior vertex: areolate. Sculpture of occipital rim: areolate. Interantennal process: diverging into two carinae that extend laterally along surface of frons. Number of anteriorly projecting setae on anteclypeus: 6. Color of mandibles in female: basal half black; apical half dark brown. Mandibular teeth in female: ventral tooth larger, but less than 2 times as long as dorsal tooth. Sculpture of ventral gena anterior to genal carina: row of areolae. Sculpture of ventral gena posterior to genal carina: areolate. Shape of anteclypeus: striplike, straight to slightly convex. Legs: Color of legs: brown, tarsi and distal portion of tibiae yellow. Mesosoma: Sculpture of dorsal pronotum: areolate. Color of setae on the dorsal mesosoma: yellow. Sculpture of medial mesoscutum: areolate. Sculpture of lateral mesoscutum: same as medial mesoscutum with a subtle confusion of sculptural elements. Notaulus in female: absent. Parapsidal line: delimited. Sculpture of scutellum: areolate. Median furrow on scutellum: present as a weak indentation. Posterior margin of scutellum: emarginate. Outer projection of the propodeum: present as distinct corner or posteriorly projecting spine. Posterior margin of propodeal shelf between inner and outer propodeal projections in female: concave. Sculpture of ventral pronotum: foveate reticulate, becoming smooth at anterolateral corner. Anterior pronotal pit: large. Pronotal cervical sulcus: well defined by contiguous punctures. Mesepimeral sulcus: indicated by dorsoventral line of foveae, crenulate. Sculpture of femoral depression in female: transversely striate throughout, finely foveate throughout. Mesopleural carina: present as one or two carinae. Sculpture of ventral mesepisternum: foveate. Pilosity of metapleural triangle in female: present as many short fine white setae. Sculpture of ventral area of metapleuron: foveate reticulate. Metasoma: Submarginal ridge on T1: percurrent, well-defined. Sublateral carina on T2: percurrent. Sculpture of T2–T3: longitudinally strigose with rugose interstices. Sculpture of T4: longitudinally strigose. Sculpure of T5: longitudinally strigose. Shape of subapical T 6 in female in dorsal view: trapezoidal, basal width twice the apical width. Longitudinal medial keel on S1: absent. Sculpture of medial S 2 in female: punctate reticulate. Sculpture of medial S 3 in female: effaced to smooth. Sculpture of medial S 4 in female: effaced to smooth. Sculpture of medial S 5 in female: effaced to smooth. Sculpture of lateral S 3 in female: punctate crenulate. Sculpture of lateral S 4 in female: punctate crenulate. Sculpture of lateral S 5 in female: punctate crenulate. Sculpture of marginal depression of S 2 in female: rugulose. Sculpture of marginal depression of S 3 in female: mostly smooth, with scattered punctures or shallow rugulae. Sculpture of marginal depression of S 4 in female: mostly smooth with scattered punctures or shallow rugulae. Sculpture of marginal depression of S 5 in female: mostly smooth with scattered punctures. Apical spine on S 6 in female: extending beyond apex of T6 and visible in dorsal view. Figures 25-30. 90 Oreiscelio aequalis , sp. n. , female holotype (OSUC 211416). 25, Lateral habitus; 26, Dorsal habitus; 27, Head and mesosoma, lateral view; 28, Head and mesosoma, dorsal view; 29, Head, anterior view; 30, T5 and T6, dorsal view. Scale bars in millimeters. Diagnosis . Oreiscelio aequalis is most similar in appearance to O. gryphus and O. coracinus , but may be easily identified by the distinctive shape of T 6 in dorsal view ( Fig. 30 ). Additionally, the width of the metasoma gradually narrows posteriorly, giving it a characteristic shape in dorsal view ( Fig. 26 ). Etymology . The epithet aequalis , meaning “equal”, refers to the apical spine on S6 which ends at the same point as the apex of T6. Link to distribution map. 13 Material examined. Holotype female: CENTRAL AFRICAN REPUBLIC : Dzanga-Ndoki National Park , 02°21.60’N 16°03.20’E , 350 m , 38.6 km (173°) S Lidjombo , Sangha-Mbaéré Préf. Écon. , 21-27.V.2001 , S. van Noort , yellow pan trap lowland rainforest CAR01–Y55, SAM–HYM–P029377 ( OSUC 211416 ) (deposited in SAMC ) 14 .