Pedinotus nigriceps 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 : 62-66

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

( Figs 30 , 31 )

Type material. Holotype: female, “ Guyane française, Montagne de Kaw , Relais Patawa, ix.1999 (Malaise trap), A.E. I. Guiane-J. Cerda legs”, “DNA PE 7-1” ( UNAM).

Paratypes. 1 female, “ Guyane française, Saül , Crique popote, Mont Belvédère, i.2001 (Malaise trap, 3°36'' N– 53°10' W, sur chablis), J. Tarin leg”, “DNA PE 8-1” ( UNAM) ; 1 female, “ Guyane française, Roura , Montagne des Chevaux, vi.2009 (Piege Malaise), Rec.: S.E.A.G.”, “DNA PE 7-2” ( MNHN) ; 1 female, “ Guyane française, Roura , Montagne des Chevaux, viii.2009 (Piege Malaise), Rec.: S.E.A.G. 2008-2009 ”, “DNA PE 5-2” ( UNAM) ; 1 female, “ Guyane française, Crique Sapokaï , degrad Laurens, 26.viii–2.ix.2000 (Malaise), A.E.I. Guiane-J. Cerda legs ”, “DNA PE 8-2” ( ZISP) .

Description. Female. Body length 10.4–11.8 mm; fore wing length 8.0– 8.8 mm.

Head width (dorsal view) 1.3–1.4 × its median length, 1.10–1.15 × maximum width of mesoscutum. Head behind eyes (dorsal view) roundly narrowed. Eye 1.6–1.8 × longer than temple (dorsal view). Ocelli medium-sized, arranged in triangle with base 1.1–1.2 × its sides, anterior ocellus round and smaller than oval lateral ocelli. POL 0.8–1.0 × Od, 0.3–0.4 × OOL. Frons concave, with high median longitudinal carina between antennal sockets. Eye glabrous, 1.2 × higher than broad. Face width 0.7–0.9 × height of eye and 0.9–1.1 × height of face and clypeus combined. Malar space 0.3 × height of eye, 0.6 × basal width of mandible. Hypoclypeal depression width equal to the shortest distance between depression and eye and 0.5–0.6 × width of face.

Antenna slender, setiform, with 54–59 antennomeres, about 1.3 × longer than body. Scape 1.7–1.9 × longer than its maximum width. First flagellomere 5.0–5.2 × longer than its apical width, 1.1 × longer than second flagellomere. Penultimate flagellomeres 4.3–5.0 × longer than its maximum width, 0.9 × as long as apical flagellomere. Last flagellomere with distinct pointed spine apically.

Mesosoma 2.0–2.1 × longer than its maximum height. Pronotum weakly convex dorsally (lateral view), with rather distinct or weak submedian pronotal carina (dorsal view). Median lobe of mesoscutum highly and roundly elevated above pronotum (lateral view), distinctly protruding forwards and convex anteriorly (dorsal view), without median longitudinal furrow. Median length of mesoscutum 1.10–1.15 × its maximum width. Notauli complete, narrow, smooth, rather shallow or rather deep anteriorly, shallow posteriorly, fused with relatively small and transversely striate medioposterior triangle area. Prescutellar depression (scutellar sulcus) deep, long, with five distinct carinae, 0.25–0.30 × as long as scutellum medially. Precoxal sulcus (sternaulus) almost indistinct or sometimes shallow, short and smooth.

Wings. Fore wing 4.5–5.0 × longer than maximum width. Vein r (first radial abscissa) arising almost from or weakly before middle of pterostigma. Vein 3RSa (second radial abscissa) 1.7–2.2 × longer than vein r (first radial abscissa), 0.3 × as long as the straight or weakly curved vein 3RSb (third radial abscissa), 1.4–1.7 × longer than vein 2RS (first radiomedial). Second submarginal (radiomedial) cell not widened apically, 2.7–3.2 × longer than maximum width, 0.7–0.9 × as long as first subdiscal (brachial) cell. Vein (RS+M)a (first medial abscissa) weakly sinuate. Vein 1m-cu (recurrent) antefurcal, weakly convergent posteriorly with vein 1M (basal). Vein 1cu-a (nervulus) postfurcal, 0.2–0.3 × as long as distance between veins 1M (basal) and nervulus (1cu-a), rarely almost interstitial. First subdiscal (brachial) cell 6.0–6.7 × longer than maximum width. Hind wing vein M+CU (first submedial abscissa) 0.3–0.4 × as long as vein 1-M (second submedial abscissa). Vein m-cu (recurrent) straight and distinctly antefurcal.

Legs. Hind femur 3.9–4.1 × longer than maximum width. Hind tarsus 1.1 × longer than hind tibia. Basitarsus of hind tarsus 0.75–0.80 × as long as second-fifth segments of hind tarsus combined. Second segment of hind tarsus 0.50–0.55 × as long as basitarsus, 2.1–2.4 × longer than fifth segment (without pretarsus).

Metasoma 1.3–1.4 × longer than mesosoma and head combined. First tergite with narrow and rather long basolateral lobes, with small spiracular tubercles in basal 0.3 or without it, weakly and almost linearly widened from subbase to apex. Length of first tergite about 1.2 × its maximum (subapical) width; maximum width 1.5–1.7 × its minimum (basal) width. First and second tergites perhaps immovable fused, its suture dorsally rather deep. Second tergite with wide, shallow, subparallel or weakly convergent posteriorly sublateral furrows; median length of second tergite 0.85–0.95 × its basal width, 1.5–1.6 × median length of third tergite. Suture between second and third tergites entirely wide (especially medially), distinctly sinuate, distinctly and widely convex medially, with not strong but distinct sublateral bends. Third tergite with distinct wide and rather shallow transverse crenulated furrow, situated in basal 0.2 (medially)–0.5 (laterally) of tergite. Ovipositor sheath 1.3–1.5 × longer than metasoma, 2.6–2.8 × longer than mesosoma, 0.8–0.9 × as long as body, 1.0–1.1 × longer than fore wing.

Sculpture and pubescence. Vertex smooth; frons striate posteriorly, laterally and medially, smooth or almost smooth on two sublateral or posterior stripes or areas, sometimes almost entirely smooth; face entirely coarsely reticulate-striate or striate with fine rugosity, reticulate-areolate medially. Mesoscutum mainly smooth, coarsely transversely or curvedly striate in narrow medioposterior subtriangle or triangle area. Mesopleuron smooth. Metapleuron mainly smooth, usually rugose or rugulose posteriorly on narrow area. Propodeal areas rather distinctly delineated by coarse carinae, basolateral areas mainly smooth but usually shortly striate along inner carinae; areola large, indistinctly delineated anteriorly, entirely and coarsely rugose-reticulate; basomedian carina 1.3–1.5 × longer than anterior forks of areola. Hind coxa and femur smooth. First and second metasomal tergites coarsely and densely longitudinally striate with reticulation, first tergite almost smooth in basal 0.2–0.3 and rugosereticulate medially; second tergite very densely striate laterally. Third tergite very densely striate with additionally dense rugulosity in basal half, smooth in apical half. Fourth to sixth tergites mainly smooth, only finely reticulate basally or in basal 0.3. Vertex mainly glabrous, with sparse and rather long setae laterally. Mesoscutum mainly glabrous, with short, rather dense and semi-erect pale setae arranged along notauli, laterally and on sculptured medioposterior area. Dorsal side of hind tibia with long, dense and semi-erect pale setae, their length 0.6–1.0 × maximum width of tibia.

Colour. Head black, sometimes reddish brown below on narrow part. Palpi dark brown to brown, pale towards apex, sixth segment yellowish. Antenna entirely black. Mesosoma mainly light reddish brown (orange), propleura and prosternum black, lower and anterior margins of pronotum brown or dark brown. Metasoma mainly light reddish brown (orange), basally sometimes brownish yellow, apically dark redfish brown to sometimes black. Tegula brownish yellow. Legs dark reddish brown to black, fore tarsus mainly brownish yellow, mid tarsus reddish brown, bases of fore and mid tibiae yellow, base of hind tibia brown or reddish brown. Ovipositor sheath dark brown to black. Wings entirely distinctly and evenly infuscate. Pterostigma entirely dark brown.

Male. Unknown.

Distribution. French Guiana. Etymology. Named after its black head colour. Comparative diagnosis. This new species belongs to the morphological group glabrous mesoscutum. Pedinotus nigriceps sp. nov. is morphologically similar to P. elongatus sp. nov.; the differences between these species are shown in the key and in the description of the latter species.

Figures

FIGURE 30. Pedinotus nigriceps 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 31. Pedinotus nigriceps sp. nov. (female, holotype). A, Wings. B, Metasoma, dorsal view. C, Metasoma, lateral view.