Pedinotus nitidus Belokobylskij et Zaldívar-Riverón, 2017

Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 66-69

Pedinotus nitidus Belokobylskij et Zaldívar-Riverón , sp. nov.

( Figs 32 , 33 )

Type material. Holotype: female, “ French Guiana (APA-973-1) Maripasoula , Crique Alama, 2°14' N / 54°27' O, alt. 310 m, MTK (massif du Mitaraka)—FIT, 10-III-2015 ”, “La Planète Revisitée—MNHN / PNI Guyane 2015” ( MNHN).

Description. Female. Body length 5.7 mm; fore wing length 3.6 mm.

Head width (dorsal view) 1.4 × its median length, 1.3 × maximum width of mesoscutum. Head behind eyes (dorsal view) distinctly roundly narrowed. Eye 2.1 × longer than temple (dorsal view). Ocelli small, arranged in almost equilateral triangle, anterior ocellus round and weakly smaller than oval lateral ocelli. POL 1.1 × Od, 0.45 × OOL. Frons weakly concave, with low but distinct median longitudinal carina between antennal sockets. Eye glabrous, 1.15 × higher than broad. Face width 0.7 × height of eye and 0.85 × height of face and clypeus combined. Malar space 0.3 × height of eye, 0.7 × basal width of mandible. Hypoclypeal depression width 0.9 × the shortest distance between depression and eye, about 0.5 × width of face.

Antenna slender, almost filiform, with 35 antennomeres, 1.1 × longer than body. Scape 1.5 × longer than its maximum width. First flagellomere 6.0 × longer than its apical width, 1.1 × longer than second flagellomere. Penultimate flagellomeres 4.0 × longer than maximum width, 0.85 × as long as apical segment.

Mesosoma 2.2 × longer than its maximum height. Pronotum weakly convex dorsally (lateral view) and with fine submedian pronotal carina (dorsal view). Median lobe of mesoscutum highly and almost perpendicularly elevated above pronotum (lateral view), distinctly protruding forwards and convex anteriorly (dorsal view), without median longitudinal furrow. Median length of mesoscutum 1.1 × its maximum width. Notauli complete, wide, almost smooth in anterior half, deep anteriorly and shallow posteriorly, fused with large medioposterior sculptured subrectangular area. Prescutellar depression (scutellar sulcus) rather deep, long, with three distinct carinae, 0.35 × as long as scutellum medially. Precoxal sulcus (sternaulus) rather deep, narrow, long, smooth, running along entire length of lower part of mesopleuron.

Wings. Fore wing 4.4 × longer than maximum width. Vein r (first radial abscissa) arising almost from middle of pterostigma. Vein 3RSa (second radial abscissa) 1.9 × longer than vein r (first radial abscissa), about 0.3 × as long as the weakly curved vein 3RSb (third radial abscissa), 1.6 × longer than vein 2RS (first radiomedial). Second submarginal (radiomedial) cell not widened apically, 2.6 × longer than maximum width, 0.7 × as long as first subdiscal (brachial) cell. Vein (RS+M)a (first medial abscissa) distinctly sinuate. Vein 1m-cu (recurrent) antefurcal, subparallel to vein 1M (basal). Vein 1cu-a (nervulus) postfurcal, 0.3 × as long as distance between veins 1M (basal) and nervulus (1cu-a). First subdiscal (brachial) cell 6.1 × longer than maximum width. Hind wing vein M+CU (first submedial abscissa) 0.35 × as long as vein 1-M (second submedial abscissa). Vein m-cu (recurrent) weakly curved and weakly antefurcal.

Legs. Hind femur 3.8 × longer than maximum width. Hind tarsus 1.15 × longer than hind tibia. Basitarsus of hind tarsus 0.7 × as long as second-fifth segments of hind tarsus combined. Second segment of hind tarsus 0.5 × as long as basitarsus, 1.4 × longer than fifth segment (without pretarsus).

Metasoma 1.3 × longer than mesosoma and head combined. First tergite without basolateral lobes and spiracular tubercles, weakly and almost linearly widened from subbase to apex. Length of first tergite 1.2 × its maximum (subapical) width; maximum width 1.65 × its minimum (basal) width. First and second tergites not fused, mobile. Second tergite with wide basally and narrow apically, rather shallow, weakly divergent posteriorly sublateral furrows. Median length of second tergite 0.55 × its basal width, 0.8 × median length of third tergite; maximum length of second tergite 1.3 × its minimum length. Suture between second and third tergites entirely deep and rather wide, distinctly sinuate, with rather strong sublateral breaks. Third tergite with distinct and rather narrow transverse crenulated sulcus in basal 0.3. Ovipositor sheath 1.15 × longer than metasoma, 2.0 × longer than mesosoma, about as long as fore wing.

Sculpture and pubescence. Vertex and frons entirely smooth; face coarsely transversely curvedly striate, with dense rugosity between striae. Mesoscutum mainly smooth, coarsely rugose-reticulate with striation in rather large medioposterior subrectangular area. Mesopleuron mainly smooth. Metapleuron mainly smooth, curvedly vertically striate in posterior quarter. Propodeum almost entirely smooth, with rugulosity along carinae, propodeal areas distinctly delineated by carinae, areola narrow, long and transverse striate; basomedian carina about as long as areola. Hind coxa and femur smooth. First metasomal tergite mainly smooth or almost smooth, distinctly rugosestriate in posterior 0.4 (medially)–0.3 (laterally). Second tergite distinctly striate medially, almost smooth laterally; second suture crenulated. Third to six tergites entirely smooth, furrow on third tergite crenulated. Vertex with sparse long erect setae, glabrous medio-anteriorly. Mesoscutum mainly glabrous, with short, dense anteriorly and laterally and very sparse along notauli erect or semi-erect pale setae. Dorsal side of hind tibia with long, rather sparse and semi-erect pale setae, their length 0.7–1.2 × maximum width of tibia.

Colour. Head black. Palpi brown. Antenna black, dark reddish brown basally. Mesosoma brownish red, black on most lower part of prothorax, below precoxal sulcus (sternaulus), on propodeum and in lower part of metanotum, upper third of metanotum sides reddish. Metasoma black, dark brown below. Tegula light reddish brown. Legs black, fore leg mainly dark reddish brown to reddish brown, mid and hind tibiae pale basally at short distance. Ovipositor sheath entirely black. Wings very faintly and evenly infuscate. Pterostigma entirely black.

Male. Unknown.

Distribution. French Guiana.

Etymology. Named after its smooth surface along most part of the body.

Comparative diagnosis. This new species belongs to the morphological group with glabrous mesoscutum. Pedinotus nitidu s sp. nov. is morphologically similar to P. levigatus Marsh ; however, it differs from the latter species by having the metasoma entirely black (orange in P. levigatus ), mesosoma brownish red with black its lower third and propodeum (entirely orange in P. levigatus ), fore wing faintly infuscate with brownish veins (yellow with yellowish vein in P. levigatus ), frons weakly but distinctly excavate (not excavate in P. levigatus ), precoxal sulcus (sternaulus) distinct, narrow and long (absent in P. levigatus ), hind wing vein r-m (basal) about 0.15 × as long as vein 1-M (second mediocubital abscissa) (0.3 × in P. levigatus ), basoventral tibercle of hind coxa distinctly protruding (weakly protruding in P. levigatus ), the first metasomal tergites coarsely rugose-striate in apical 0.4 (almost entirely smooth in P. levigatus ), transverse groove on third tergite entirely distinctly crenulated (smooth in P. levigatus ), and body length small (large in P. levigatus ). Differences between P. nitidus and P. haliti sp. nov. are shown in the description of the latter species.

Figures

FIGURE 32. Pedinotus nitidus sp. nov. (female, holotype). A, Habitus, dorsal view. B, Head, front view. C, Head, dorsal view. D, Head, lateral view. E, Basal segments of antenna. F, Apical segments of antenna. G, Mesosoma, dorsal view. H, Mesosoma, lateral view. I, Hind leg, lateral view.

FIGURE 33. Pedinotus nitidus sp. nov. (female, holotype). A, Wings. B, Metasoma, dorsal view. C, Metasoma, lateral view.