Oreiscelio alluaudi

Oreiscelio alluaudi (Risbec) urn:lsid:zoobank.org:act: AC84CA24-A4E0-4BB7-A0EE-E327531DA738 urn:lsid:biosci.ohio-state.edu:osuc_concepts:5001 Figures 6, 9, 15, 24, 31-36; Morphbank 15 Lepidoscelio alluaudi Risbec, 1950: 590. Original description. Oreiscelio alluadi: Masner, 1976: 17. Type information, generic transfer, spelling error. Description. General: Body length of female: 3.2-3.8 mm (n=10). Body length of male: 3.0 mm (n=1). Body color: black. Antenna: Color of antennae in female: A1–A6 yellow; A7–A12 dark brown to black, A1–A6 brown; A7–A12 dark brown to black. Color of antennae in male: A1 brown; A2–A12 yellow. 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: coarsely foveate. Preocellar pit in females: indicated by a small round depression, present as a distinct pit. Transverse rugae at vertex: present. Sculpture of posterior vertex: coarsely foveate. Sculpture of occipital rim: areolate. Interantennal process: simple. Number of anteriorly projecting setae on anteclypeus: 6. Color of mandibles in male: yellow throughout, teeth brown. Color of mandibles in female: yellow throughout with teeth brown. Mandibular teeth in female: dorsal tooth larger. Sculpture of ventral gena anterior to genal carina: row of areolae, row of contiguous punctures. Sculpture of ventral gena posterior to genal carina: mostly smooth, with sparse large punctures, coarsely and irregularly punctate. Shape of anteclypeus: striplike, straight to slightly convex. Legs: Color of legs: entirely yellow. Mesosoma: Sculpture of dorsal pronotum: areolate with expanded ridges. Color of setae on the dorsal mesosoma: yellow. Sculpture of medial mesoscutum: coarsely foveate. Sculpture of lateral mesoscutum: with an elevated patch of smoother sculp-ture, bounded by mesoscutal humeral sulcus laterally, extending to scutoscutellar sulcus posteriorly. Notaulus in female: present. Parapsidal line: delimited. Sculpture of scutellum: areolate. Median furrow on scutellum: absent. Posterior margin of scutellum: emarginate, convex. 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: large. Pronotal cervical sulcus: well defined by contiguous punctures. Mesepimeral sulcus: indicated by dorsoventral line of foveae. Sculpture of femoral depression in female: anterior half smooth, posterior half finely foveate. Sculpture of femoral depression in male: finely foveate throughout, with weak transverse striae throughout. Mesopleural carina: indicated by one or two rows of punctures. Sculpture of ventral mesepisternum: foveate. Pilosity of metapleural triangle in female: glabrous or with at most 3 small setae. Pilosity of metapleural triangle in male: absent. Sculpture of ventral area of metapleuron: foveate reticulate, with slightly appressed ridges. Metasoma: Submarginal ridge on T1: absent. Sublateral tergal carina on T2: absent. Sculpture of T2–T3: reticulate rugose. Sculpture of T4: reticulate rugose. Sculpure of T5: reticulate rugose. 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: slightly convex. Longitudinal medial keel on S1: present. 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: foveolate. Sculpture of lateral S 4 in female: foveolate. Sculpture of lateral S 5 in female: foveate. Sculpture of marginal depression of S 2 in female: mostly smooth, with scattered punctures or shallow rugulae, 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: rugulose. Sculpture of marginal depression of S 5 in female: rugulose. Apical spine on S 6 in female: not extending beyond apex of T6 and not visible in dorsal view. Sculpture of medial S 2 in male: punctate reticulate. Sculpture of medial S 3 in male: smooth. Sculpture of lateral S 3 in male: foveolate. Sculpture of lateral S 4 in male: foveolate. Sculpture of medial S 5 in male: smooth. Sculpture of lateral S 5 in male: foveolate. Diagnosis. Oreiscelio alluaudi is similar to O. rostratus and O. naevus. Oreiscelio alluaudi is the only species from Madagascar with a preocellar pit (Fig. 15) present in females, and this character allows it to be separated from females of both O. rostratus and O. naevus. It may also be distinguished from O. rostratus by the sculpture of the dorsal metasoma (Fig. 36). Males of O. alluaudi may be separated from those of O. naevus by the sculpture of the ventral mesepisternum which is coarsely foveate in the former and mostly to entirely smooth in the latter. Link to distribution map. 16 Material examined. Holotype female: MADAGASCAR: Diego-Suarez, Ch. Alluaud 1893, MNHN 0003 (MNHN) 17 . Other material: MADAGASCAR: 1 male, 10 females, CASENT 2042833, 2042920, 2042984, 2043457, 2133066, 2133421 (CASC); CASENT 2132558, 2043458, 2042983, 2042921, 2042636 (OSUC).

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