Oxytorus Förster, 1869
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publication ID |
https://doi.org/ 10.3906/zoo-1408-1 |
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persistent identifier |
https://treatment.plazi.org/id/051D87C2-FFA1-192F-FFD4-FF1BFD7CD810 |
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treatment provided by |
Felipe |
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scientific name |
Oxytorus Förster, 1869 |
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Oxytorus Förster, 1869 View in CoL View at ENA . Verhandlungen des Naturhistorischen Vereins der Preussischen Rheinlande und Westfalens. 25 (1868): 199.
Type species: Oxytorus armatus Thomson.
Front wing 4.0–7.0 mm, body up to 10.0 mm long. Occipital carina complete. Lateral carina of scutellum developed at least near base. Prepectal carina ending near middle of hind margin of pronotum. Front wing usually with areolet. Propodeum moderately elongate, completely areolated, sometimes areola confluent with basal area. First metasomal tergum fused with sternite. Female subgenital plate large, roundly folded on midline (Townes, 1971).
Until now, no member of the genus was known from Turkey. Among the materials collected from northeastern Turkey we found an Oxytorus species, which is redescribed below.
Key for determination of Western Palearctic Oxytorus species (after van Rossem (1980) with changes)
1. Fore wing with areolet closed; second metasomal tergum coriaceous; apophyses on propodeum usually strong; ovipositor sheath as in Figure 2a View Figure 2 …..................
................................. Oxytorus armatus Thomson, 1883 View in CoL -. Fore wing without areolet; second and following metasomal terga in female polished, in male second tergum weakly coriaceous; apophyses on propodeum weak or absent; ovipositor sheath as in Figure 2b View Figure 2
…………….. Oxytorus luridator (Gravenhorst, 1820) View in CoL
Oxytorus luridator (Gravenhorst, 1820) View in CoL
( Figures 2b–2e View Figure 2 )
Oxytorus luridator Gravenhorst, 1820 View in CoL . Memorie della Reale Academia dell Scienze di Torino. 24: 379.
Female. Front wing 4.5–6.5 mm, body 7.1–7.7 mm long. Head strongly narrowed behind eyes. Frons almost flat, shagreened. Inner eye orbitae weakly divergent down. Flagellum with 25 segments. First segment 2.7 times as long as wide. Flagellar segments 9–12, white, apical segments transversal. Occipital carina well developed, reaching hypostomal carina just beyond base of mandible. Diameter of ocellus 0.86 times as long as distance between compound eye and lateral ocellus. Temple 0.65 times as long as transversal diameter of compound eye. Face 1.6 times as wide as long, punctured on shagreened surface ( Figure 2c View Figure 2 ). Clypeus distinctly separated from face by furrow, 3.0 times as long as wide, with arched apical margin and row of erect setae. Malar space 0.9 times as long as basal width of mandible. Upper tooth of mandible
b
weakly longer than lower tooth. Maxillary palpus elongate and reaching middle of mesosternum.
Epomia, notaulus, and sternaulus weakly indicated. Scutellum somewhat convex, not carinated laterally except at base. Prepectal carina strong, reaching pronotal margin in its middle. Pro-, meso-, and metapleurum punctured on shagreened surface. Speculum large, luscious. Fore wing without areolet ( Figure 2d View Figure 2 ). First radius originate from apical third of pterostigma. Nervulus slightly antefurcal. Parallel vein connected postnervulus on its lower third. Hind wing with 5 distal hamuli. Nervellus slightly inclivous, intercepted clearly below middle, discoidella not pigmented, but distinct. Legs slender, hind femur 3.6 times as long as wide. All tibial spurs curved apically. Correlation between lengths of hind tarsal segments 43:31:23:12:15. Tarsal claws simple. Propodeum fully areolated, basal and petiolar area confluent with areolet ( Figure 2e View Figure 2 ). Apophyses weakly developed. Propodeal spiracle oval, almost touching pleural carina. Justacoxal carina strong.
First metasomal segment 2.2 times as long as wide, curved in lateral view. Median and dorsolateral carinae of first tergum well developed. First sternite extending beyond spiracle. Ventrolateral carinae well indicated. Epipleurum of 2–3 terga separated by crease, 4–7 terga fully sclerotized. Subgenital plate large. Ovipositor sheath short, with long erect setae. Ovipositor pointed to the apex.
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