Pedinotus dispar 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 : 32-36

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

( Figs 14 , 15 )

Pedinotus sp. 2: Samacá-Sáenz et al., 2016: 486, 487.

Type material. Holotype: female, “ French Guiana, Regina , Road Roura-Kaw , Km 37.5. 04.3320 N 52.0819 O, Alt. 217 m. Enero 2005. CNIN 1433 (GenBank accession no. KT851883 ). Kaw Mountain. Col. O. Morvan Leg. ”, “ Pedinotus sp. 2” ( UNAM).

Paratype. 1 female, same label as in holotype, but “ Feb. 2005 ”, “ Pedinotus CNIN 1437” ( ZISP) ; 1 male, same label as in holotype, but “CNIN 1985, Col. JA. Cerda Leg.”, “ Pedinotus sp. 2” ( UNAM) ; 1 female, “ French Guiana, Regina , Kaw Mountain, Patawa, 4°32'643'' N 52°9'153'' W, 08.2005, J.A. Cerda leg.”, “P sp 1 22” ( UNAM) ; 1 female, “ Guyane française, Montagne de Kaw , Relais Patawa, xi.2000 (Malaise trap, 4°32'42.20'' N– 52°09'09.19'' W). A.E.I. Guyane - J. Cerda legs”, “DNA PE 6-1” ( UNAM) ; 1 female. with same first label, “DNA PE 3-3” ( ZISP) ; 1 female, “ French Guiana (APA-973-1) Maripasoula , Crique Alama, 2°14' N / 54°27' O, alt. 310 m, MTK (massif du Mitaraka)—SLAM, 6-III-2015, La Planète Revisitée—MNHN / PNI Guyane 2015” ( MNHN) ; 1 female, same label, but “ 14.III.2015 ” ( MNHN) .

Description. Female. Body length 6.4–7.4 mm; fore wing length 3.7–4.7 mm.

Head width (dorsal view) 1.4–1.5 × its median length, 1.2–1.3 × maximum width of mesoscutum. Head behind eyes (dorsal view) roundly narrowed. Eye 1.6–1.9 × longer than temple (dorsal view). Ocelli medium-sized, arranged in triangle with base 1.15–1.20 × its sides, anterior ocellus round and smaller than oval lateral ocelli. POL 0.6–0.7 × Od, about 0.3 × OOL. Frons weakly concave, with more or less high and thick median longitudinal carina between antennal sockets. Eye glabrous, 1.2 × higher than broad. Face width 0.70–0.75 × height of eye and 0.85–1.00 × height of face and clypeus combined. Malar space 0.35–0.40 × height of eye, 0.9–1.0 × basal width of mandible. Hypoclypeal depression width 0.8–0.9 × the shortest distance between depression and eye and 0.45–0.50 × width of face.

Antenna slender, weakly setiform, with more than 37 antennomeres (apical flagellomeres missing in all specimens). Scape 1.6 × longer than its maximum width. First flagellomere 6.0–6.5 × longer than its apical width, 1.10–1.15 × longer than second flagellomere. Submedian flagellomeres about 4.5 × and subapical flagellomeres about 3.0 × longer than their maximum width.

Mesosoma 2.1–2.2 × longer than its maximum height. Pronotum distinctly convex dorsally (lateral view) and with distinct 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 1.1–1.2 × its maximum width. Notauli complete, wide, finely crenulated or sometimes almost smooth, deep anteriorly and shallow posteriorly, fused with medioposterior sculptured subtriangular area. Prescutellar depression (scutellar sulcus) rather deep, long, with distinct three-four carinae, 0.3–0.4 × as long as scutellum medially. Precoxal sulcus (sternaulus) shallow, but distinct, rather short, smooth, running along anterior 0.5 of lower part of mesopleuron.

Wings. Fore wing 3.9–4.2 × longer than maximum width. Vein r (first radial abscissa) arising almost from middle of pterostigma. Vein 3RSa (second radial abscissa) 1.7–2.0 × longer than vein r (first radial abscissa), about 0.3 × as long as the almost straight vein 3RSb (third radial abscissa), 1.3–1.6 × longer than vein 2RS (first radiomedial). Second submarginal (radiomedial) cell not widened apically, 2.3–2.6 × longer than maximum width, 0.70–0.85 × as long as first subdiscal (brachial) cell. Vein (RS+M)a (first medial abscissa) sinuate. Vein 1m-cu (recurrent) antefurcal, subparallel to vein 1M (basal). Vein 1cu-a (nervulus) postfurcal, 0.2–0.4 × as long as distance between veins 1M (basal) and nervulus (1cu-a). First subdiscal (brachial) cell 5.0–5.7 × longer than maximum width. Hind wing vein M+CU (first submedial abscissa) 0.4 × as long as vein 1-M (second submedial abscissa). Vein m-cu (recurrent) straight and distinctly antefurcal.

Legs. Hind femur 3.6–3.7 × longer than maximum width. Hind tarsus 1.1 × longer than hind tibia. Basitarsus of hind tarsus 0.6–0.7 × as long as second-fifth segments of hind tarsus combined. Second segment of hind tarsus about 0.5 × as long as basitarsus, 1.3–1.5 × longer than fifth segment (without pretarsus).

Metasoma 1.1–1.3 × as long as mesosoma and head combined. First tergite with short wide rounded basolateral lobes, without spiracular tubercles, distinctly and weakly curvedly widened from subbase to apex. Length of first tergite 1.0–1.1 × its maximum (subapical) width; maximum width 1.5–1.6 × its minimum (basal) width. First and second tergites immovable fused, its suture dorsally deep. Second tergite with rather narrow, shallow, almost parallel sublateral furrows; median length of second tergite 0.4–0.5 × its basal width, 0.7–0.8 × median length of third tergite. Suture between second and third tergites entirely deep and rather wide, strongly sinuate, with strong sublateral bends. Third tergite with distinct wide transverse crenulated sulcus in basal 0.5. Ovipositor sheath 0.8–1.0 × as long as metasoma, 1.4–1.8 × longer than mesosoma, 0.7–0.9 × as long as fore wing.

Sculpture and pubescence. Vertex smooth; frons finely and interruptedly transversely striate, with almost smooth sublateral or lateral stripes; face coarsely transversely curvedly striate, partly with reticulation, entirely with dense rugosity between striae and reticulae. Mesoscutum mainly smooth, partly very finely coriaceous on lateral lobes, coarsely rugose-reticulate in medioposterior subtriangular area. Mesopleuron mainly smooth. Metapleuron mainly smooth, with rugosity posteriorly. Propodeal areas distinctly delineated by carinae, basolateral areas mainly very finely coriaceous to smooth at least in basal half, with rugosity along carinae (sometimes wide in posterior half); areola pentagonal and coarsely reticulate; basomedian carina usually about as long as anterior fork of areola, rarely 1.4 × longer than it. Hind coxa and femur mainly smooth. First metasomal tergite coarsely and densely reticulate-areolate, curvedly and subtransversely striate in posterior half. Second tergite striate with dense and coarse reticulation between striae. Third tergite densely and small reticulate-areolate with very dense striation in basal 0.5 (medially)–0.8 (laterally), smooth posteriorly. Fourth and fifth tergites very densely distinctly punctate in basal 0.3–0.5, sculpture becoming finely on apical tergites, smooth on rest parts. Vertex mainly glabrous, with a few isolated setae. Mesoscutum mainly glabrous, with short, sparse pale setae widely arranged along notauli and on sculptured medioposterior area. Dorsal side of hind tibia with rather long, sparse and semi-erect pale setae, their length about 0.8 × maximum width of tibia.

Colour. Head brownish yellow, vertex and frons mainly black to dark reddish brown laterally; sometimes almost entirely brownish yellow with fine dorsal darkening or mainly black with brownish yellow sides of face and malar space. Palpi brownish yellow or almost yellow, more or less distinctly darkened basally. Antenna black, rarely scape reddish brown. Mesosoma light reddish brown or brownish yellow, metanotum, propodeum and sometimes metapleuron or scutellum and median area of mesoscutum black or at least reddish brown. Tegula brownish yellow. Metasoma reddish brown or dark reddish brown, three basal tergites mainly almost black or at least darker than other ones, third to sixth tergites laterally whitish yellow, apical tergite often paler to yellow. Fore leg reddish brown to dark reddish brown, coxa, sometimes trochanter and apical half of femur brownish yellow. Mid and hind legs brown to black, rarely mid leg reddish brown to yellowish brown at least partly, mid tibia pale yellow basally and reddish brown in apical half, mid tarsus medially yellowish brown; hind tibia black basally and pale yellow on short subbasal area, sometimes hind coxa and most part of femur yellow or brownish yellow. Ovipositor sheath entirely black. Wings entirely faintly and evenly infuscate. Pterostigma entirely dark brown.

Male. Body length 6.1 mm; fore wing length 3.5 mm. Head behind eyes (dorsal view) weakly convex in anterior half and roundly narrowed in posterior half. Eye 1.4 × longer than temple (dorsal view). POL 0.4 × OOL. Frons distinctly concave. Malar space 0.7 × basal width of mandible. Length of mesosoma 2.2 × its height. Precoxal sulcus (sternaulus) absent. Propodeum with coarse carinae (especially lateral ones). Fore wing 4.0 × longer than maximum width. Vein 3RSa (second radial abscissa) 2.3 × longer than vein r (first radial abscissa), 0.4 × as long as vein 3RSb (third radial abscissa), 1.3 × longer than vein 2RS (first radiomedial). Hind femur 3.4 × longer than maximum width. Metasoma narrow, distinctly transformed, Rhaconotus -shaped. First tergite not widened from subbase to apex, subparallel. Length of first tergite 1.5 × its maximum (subapical) width; its maximum width 1.2 × minimum (basal) width. First and second tergites immovable fused, its suture dorsally deep. Second tergite without sublateral furrows, its median length 0.9 × basal width, 0.75 × median length of third tergite. First and second tergites entirely coarsely sculptured. Suture between second and third tergites very weakly sinuate, almost without sublateral bends. Third tergite with distinct wide transverse crenulated sulcus subbasally. Fourth to sixth tergites with deep and crenulated transverse basal furrows. Sixth tergite enlarged, covered following tergites, 1.2 × longer than fifth tergite. Third to sixth tergites mainly very densely and small granulate-punctate, third to fifth tergites smooth on narrow apical transverse stripe. Colour. Body brownish yellow, faintly infuscate dorsally, two basal segments of metasoma light reddish brown. Palpi yellow. Antenna reddish brown basally following to dark or black antennomeres towards apex, scape and pedicel yellowish brown. Legs light reddish brown to brownish yellow, fore coxa, trochanter and most part of femur pale yellow. Pterostigma reddish brown in anterior half and dark brown in posterior half and apically. Otherwise similar to female.

Distribution. French Guiana.

Etymology. Named because female and male of this species distinctly differ morphologically.

Comparative diagnosis. This new species belongs to the morphological group with glabrous mesoscutum. Pedinotus dispar sp. nov. is morphologically similar to P. ferrugineus (Enderlein) and P. variegatus Marsh , but differs by having a longer first metasomal tergite (distinctly shorter in P. ferrugineus and P. variegatus ) and lateral bands of second suture less closely situated to anterior margin of second tergite (very closely in P. ferrugineus and P. variegatus ). The new species also resembles P. szepligetii sp. nov., their differences are detailed under the description of P. szepligetii .

Remarks. According to our molecular phylogeny, a male specimen of Pedinotus belongs to P. dispar despite having the following morphological differences in the metasoma structure with respect to examined females: third to sixth metasomal tergites almost entirely and very densely granulate, and sixth tergite enlarged and covered following segments. Females P. dispar have third to sixth tergites rugose-punctate in basal halves and smooth in apical halves, and sixth tergite not enlarged.

Figures

FIGURE 14. Pedinotus dispar sp. nov. (A, C–J—female, holotype; B—male, paratype). A, B, Habitus, dorsal view. C, Head, front view. D, Head, dorsal view. E, Head, lateral view. F, Basal segments of antenna. G, Mesosoma, dorsal view. H, Mesosoma, lateral view. I, Hind femur and tibia, lateral view. J, Propodeum and first-third metasomal tergites, dorsal view.

FIGURE 15. Pedinotus dispar sp. nov. (A–C—female, holotype; D—male, paratype). A, Wings. B, Metasoma, lateral view. C, D, Metasoma, dorsal view.