Oreiscelio coracinus Talamas & Johnson, 2009

Talamas, Elijah, Johnson, Norman, van Noort, Simon, Masner, Lubomir & Polaszek, Andrew, 2009, Revision of world species of the genus Oreiscelio Kieffer (Hymenoptera, Platygastroidea, Platygastridae), ZooKeys 6 (6), pp. 1-68 : 22-26

Oreiscelio coracinus Talamas & Johnson , sp. n.

urn:lsid:zoobank.org:act:62D33F91-70BA-4F3F-BF90-B8EAB2297A94

urn:lsid:biosci.ohio-state.edu:osuc_concepts:225542

Figures 11 , 17 , 43-48 ; Morphbank 21

Description. General: Body length of female: 2.3-3.1 mm (n=20). Body length of male: 2.3-2.9 mm (n=20). Body color: dark brown to black.

Antenna: Color of antennae in female: dark brown to black throughout. Color of antennae in male: A1–A2 brown; A3–A12 variably becoming yellow apically, antennomeres often yellow ventrally. Seta on pedicel of antenna in female: present, reaching past apex of A3.

Head: Color of setae on the head: white, brown, yellow. Sculpture of dorsal frons between frontal carina and median ocellus: areolate. Preocellar pit in females: absent, indicated by a small round depression, 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 male: black throughout, black throughout with brown teeth. Color of mandibles in female: basal half black; apical half dark brown, black throughout, basal half black; apical half pale brown. Mandibular teeth in female: teeth of equal size, 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, coarsely and irregularly punctate. Shape of anteclypeus: striplike, straight to slightly convex.

Legs: Color of legs: dark brown, tarsi and distal portion of tibiae light brown, brown, distal portion of tibiae and tarsomeres 1-4 yellow, apical tarsomere brown.

Mesosoma: Sculpture of dorsal pronotum: areolate. Color of setae on the dorsal mesosoma: white, brown, yellow. Sculpture of medial mesoscutum: areolate, areolate, with pronounced longitudinal ridges. Sculpture of lateral mesoscutum: same as medial mesoscutum with a subtle confusion of sculptural elements. Notaulus in female: absent. Parapsidal line: delimited, indistinguishable. Sculpture of scutellum: areolate. Median furrow on scutellum: absent, 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. Posterior margin of propodeal shelf between inner and outer propodeal projections in male: concave. Sculpture of ventral pronotum: foveate reticulate, becoming smooth at anterolateral corner. Anterior pronotal pit: unknown. Pronotal cervical sulcus: unknown. Mesepimeral sulcus: indicated by dorsoventral line of foveae, crenulate. Sculpture of femoral depression in female: smooth throughout, transversely striate throughout, anterior half smooth, posterior half finely foveate, finely foveate throughout. Sculpture of femoral depression in male: smooth throughout, finely foveate throughout, with weak transverse striae throughout. Mesopleural carina: present as one or two carinae. Sculpture of ventral mesepisternum: foveate, with smooth area surrounded by small foveae. Pilosity of metapleural triangle in female: present as many short fine white setae. Pilosity of metapleural triangle in male: present as many short fine white setae. Sculpture of ventral area of metapleuron: smooth, foveate reticulate, foveate reticulate, with slightly appressed ridges.

Metasoma: Submarginal ridge on T1: percurrent, well-defined. Sublateral tergal carina on T2: percurrent, absent. Sculpture of T2–T3: reticulate rugose. Sculpture of T4: longitudinally strigose, reticulate rugose. Sculpure of T5: longitudinally strigose. Shape of subapical T 6 in female in dorsal view: short, width along anterior margin at least three times the length. Apex of T 7 in male: bispinose. Longitudinal medial keel on S1: absent. Sculpture of medial S 2 in female: punctate reticulate. Sculpture of medial S 3 in female: longitudinally strigose, foveate, effaced to smooth. Sculpture of medial S 4 in female: effaced to smooth. Sculpture of medial S 5 in female: longitudinally strigose. Sculpture of lateral S 3 in female: reticulate rugose, foveolate, rugulose. Sculpture of lateral S 4 in female: reticulate rugose, longitudinally strigose. Sculpture of lateral S 5 in female: reticulate rugose, longitudinally strigose. Sculpture of marginal depression of S 2 in female: mostly smooth, with scattered punctures or shallow rugulae, rugulose, finely punctate throughout. Sculpture of marginal depression of S 3 in female: mostly smooth, with scattered punctures or shallow rugulae, finely punctate throughout. Sculpture of marginal depression of S 4 in female: mostly smooth with scattered punctures or shallow rugulae, rugulose. Sculpture of marginal depression of S 5 in female: rugulose. Apical spine on S 6 in female: extending beyond apex of T6 and visible in dorsal view. Sculpture of medial S 2 in male: punctate reticulate, foveolate. Sculpture of medial S 3 in male: foveate. Sculpture of lateral S 3 in male: smooth, foveolate, rugulose. Sculpture of lateral S 4 in male: smooth, rugulose, foveolate. Sculpture of medial S 5 in male: smooth, foveate. Sculpture of lateral S 5 in male: foveolate, longitudinally strigose, reticulate rugose.

Diagnosis. This widespread species is variable in a number of characters, including body length, the size of the preocellar pit, and the presence of a submarginal ridge on T1. This species is colored dark brown to black. As in O. turneri , the northern specimens tend to be blacker than those of Zimbabwe, but those from South Africa are typically very dark. Th e specimens from Cameroon, Nigeria, Yemen and some from Malawi have the preocellar pit conspicuously large (Fig. 17). Th ey are here treated as part of O. coracinus due to the congruence of other characters and the relatively small series that they comprise. Th is species is quite similar in appearance to O. turneri , and can be reliably separated by the subequal size of the mandibular teeth.

Etymology. The epithet coracinus , meaning “ravenlike”, refers to the color of this species.

Link to distribution map. 22

Material examined. Holotype, female: ZIMBABWE: Harare (Salisbury), V-1975 – VII-1975, A. Watsham, OSUC 234401 (deposited in CNCI) 23 . Paratypes: (80 females, 44 males) CAMEROON: 8 females, OSUC 256822-256826, BMNH #790258 ( OSUC 256827 ) ( BMNH) ; OSUC 233772-233773 ( CNCI) . KENYA: 1 female, UCRC ENT 171074 ( UCRC) . MALAWI: 4 females, 1 male, OSUC 233687-233689, 234315, 234350 ( CNCI) . NIGERIA: 1 female, OSUC 234341 ( CNCI) . SOUTH AFRICA: 23 females, 21 males, OSUC 233712, 233717, 233719-233721, 233725, 233732-233733, 233735-233737, 233741-233742, 233745, 233749, 233751- 233752, 233754, 233756, 233780-233782, 233784-233785, 233787-233789, 233791, 233793, 233796, 234306-234307, 234319-234321, 234323-234325, 234334, 234338 ( CNCI) ; OSUC 58659 ( OSUC) ; OSUC 174596 , 174705 , 233035 ( SANC) . TANZANIA: 2 females, 1 male, CASENT 2042525 ( CASC) ; SAM–HYM–P019539 ( OSUC 248305 ), SAM–HYM–P019903 ( OSUC 248304 ) ( SAMC). UGAN-DA: 1 female, OSUC 233711 ( CNCI) . YEMEN: 1 female, OSUC 234344 ( CNCI) . ZIMBABWE: 38 females, 21 males, BMNH #790260 ( OSUC 256821 ) ( BMNH) ; OSUC 233739-233740 , 233755 , 233767 , 233769-233770 , 234213-234214 , 234218 , 234233 , 234240-234242 , 234245 , 234251-234252 , 234254-234256 , 234258- 234268 , 234276-234278 , 234282-234287 , 234333 , 234339-234340 , 234362 , 234367 , 234370 , 234373-234375 , 234379-234382 , 234385 , 234388 , 234390 , 234397 , 234403 ( CNCI) ; OSUC 58657 ( OSUC) . Other material: CENTRAL AFRI-CAN REPUBLIC: 1 female, SAM–HYM–P029375 ( OSUC 248307) ( SAMC).

Comments. One specimen from the Central African Republic shares the majority of its characters with O. coracinus but it has yellow antennomeres 2-6, and yellow femora, tibiae, and tarsomeres. We choose not to describe this as a new species due to the limited material and the possibility that the differences might be intraspecific. For

this reason, this specimen is determined as O. coracinus but is excluded from the type series. Images of this specimen are available at the image database of Th e Ohio State University (purl.oclc.org/NET/ hymenoptera /specimage).

Figures

Figures 115-120.105 Oreiscelio sechellensis Kieffer. 115, Lateral habitus, female (OSUC 207594); 116, Dorsal habitus, female (OSUC 207594); 117, Head and mesosoma, lateral view, female (OSUC 207594); 118, Head and mesosoma, dorsal view, female (OSUC 207594); 119, Head, anterior view, female (OSUC 234298); 120, Metasoma, ventral view, female (OSUC 234301). Scale bars in millimeters.

Figures 13-18.88 13, Oreiscelio rugosus Sundholm, upper frons, anterodorsal view, female (OSUC 234351); 14, Oreiscelio rugosus, upper frons, anterodorsal view, female (OSUC 211420); 15, Oreiscelio alluaudi (Risbec), upper frons, anterodorsal view, female (CASENT 2042636); 16, Oreiscelio badius sp. n., upper frons, anterodorsal view, female (OSUC 202167); 17, Oreiscelio coracinus sp. n., upper frons, anterodorsal view, female (OSUC 234341); 18, Oreiscelio zuzkae sp. n., upper frons, anterodorsal view, female (OSUC 207588). Scale bars in millimeters.

Figures 43-48.93 Oreiscelio coracinus, sp. n. 43, Lateral habitus, female holotype (OSUC 234401); 44, Dorsal metasoma, female holotype (OSUC 234401); 45, Head and mesosoma, lateral view, female holotype (OSUC 234401); 46, Head and mesosoma dorsal view, female holotype (OSUC 234401); 47, Head, anterior view, female (OSUC 233791); 48, Head, ventrolateral view, male (OSUC 234339). Scale bars in millimeters.