Pedinotus trinidad Shimbori, Castro et Penteado-Dias, 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 : 93-94

Pedinotus trinidad Shimbori, Castro et Penteado-Dias , sp. nov.

( Fig. 47 )

Type material. Holotype: female, “ Trinidad, Simla , nr. Arima, 250 m, 25.XI–03.XII.[19]77, Mal. Trap. Mason” ( CNCI).

Description. Female. Body length 5.5 mm; fore wing length 3.7 mm.

Head width (dorsal view) 1.6 × its median length, 1.4 × maximum width of mesoscutum. Head behind eyes (dorsal view) roundly narrowed. Eye 1.9 × longer than temple (dorsal view). Ocelli medium-sized, arranged in almost equilateral triangle. POL 1.1 × Od, 0.4 × OOL. Frons weakly concave, with fine but distinct and long median longitudinal carina. Eye glabrous, 1.2 × higher than broad. Face width 0.7 × height of eye and 0.8 × height of face and clypeus combined. Malar space 0.2 × height of eye, 0.7 × basal width of mandible. Hypoclypeal depression width 1.7 × the shortest distance between depression and eye, 0.6 × width of face.

Antenna slender, almost filiform, with 37 antennomeres. Scape 1.2 × longer than its maximum width. First flagellomere 7.5 × longer than its apical width, 0.9 × as long as second flagellomere. Submedian flagellomeres about 6.0 × longer than their maximum width.

Mesosoma 2.1 × longer than its maximum height. Pronotum distinctly convex dorsally (lateral view) and with fine submedian pronotal carina (dorsal view). Median lobe of mesoscutum distinctly protruding forwards (lateral view) and anteriorly weakly convex (dorsal view), without median longitudinal furrow. Median length of mesoscutum (dorsal view) 1.1 × its maximum width. Notauli complete, deep and crenulated anteriorly and shallow posteriorly. Prescutellar depression (scutellar sulcus) rather deep, finely crenulated, with four distinct carinae, 0.4 × as long as scutellum medially. Precoxal sulcus (sternaulus) shallow, but distinct, rather short and crenulated, running along anterior 0.7 of lower part of mesopleuron.

Wings. Fore wing 3.9 × longer than maximum width. Vein r (first radial abscissa) arising before middle of pterostigma. Vein 3RSa (second radial abscissa) 2.7 × longer than vein r (first radial abscissa), 0.4 × as long as the straight vein 3RSb (third radial abscissa), 1.5 × longer than vein 2RS (first radiomedial). Second submarginal (radiomedial) cell 2.5 × longer than maximum width, 0.8 × as long as first subdiscal (brachial) cell. Vein (RS+M)a (first medial abscissa) weakly sinuate. Vein 1m-cu (recurrent) almost interstitial, subparallel to vein 1M (basal). Vein 1cu-a (nervulus) postfurcal, about 0.2 × as long as distance between veins 1M (basal) and nervulus (1cu-a). Hind wing vein M+CU (first submedial abscissa) 0.3 × as long as vein 1-M (second submedial abscissa). Vein mcu (recurrent) straight and distinctly antefurcal.

Legs. Hind femur 3.6 × longer than maximum width. Hind tarsus about as long as hind tibia. Basitarsus of hind tarsus 0.7 × as long as second-fifth segments of hind tarsus combined. Second segment of hind tarsus 0.8 × as long as basitarsus, 2.2 × longer than fifth segment (without pretarsus).

Metasoma as long as mesosoma and head combined. First tergite with basolateral lobes and without spiracular tubercles, almost linearly widened from subbase to apex. Length of first tergite 0.9 × its maximum (subapical) width; maximum width 1.4 × its minimum (basal) width. Second tergite with short sublateral furrows; median length of second tergite 0.55 × its basal width, 0.8 × median length of third tergite. Suture between second and third tergites entirely deep and rather wide, distinctly sinuate. Third tergite with distinct wide transverse crenulated sulcus in basal third. Ovipositor sheath 0.9 × as long as metasoma, 1.4 × longer than mesosoma, 0.7 × as long as fore wing.

Sculpture and pubescence. Vertex weakly rugose; frons costate; face coarsely areolate-rugose. Mesoscutum punctate, rugose-reticulate in medioposterior triangle area. Mesopleuron mainly almost smooth. Metapleuron smooth, rugose posteriorly. Propodeum carinate-rugose, with basolateral areas distinctly delineated by carinae; areola absent. Hind coxa and femur mainly smooth. First metasomal tergite carinate, second metasomal tergite with semi-circular rugose area. Third tergite distinctly and densely areolate-rugose in basal 0.3 (medially)–0.6 (laterally) and smooth apically. Fourth tergite areolate-rugose basally, smooth apically. Fifth and sixth tergites very densely and small reticulate-punctate in basal halves, smooth on remaining parts. Vertex almost entirely with semi-erect pale dense setae. Mesoscutum with dense and semi-erect pale setae. Dorsal margin of hind tibia with long, rather sparse and semi-erect pale setae, their length 0.9 × maximum width of tibia.

Colour. Head mainly light yellow, frons and vertex brown. Palpi pale brown. Antenna darkened toward apex, yellow basally to dark brown apically, scape light yellow with lateral brown stripe. Mesosoma mainly orange, pronotum light yellow ventrally, median lobe of mesoscutum, prescutellar depression, scutellum and propodeum dark brown. Tegula pale yellow. Metasoma dark brown to pale brown, white laterally started from second tergite. Legs mainly whitish yellow, all tarsi dark yellow, hind tarsus light brown; fore and mid coxae pale yellow; all femora with transverse brown stripes. Ovipositor sheath entirely black. Wings faintly and evenly infuscate. Pterostigma brown.

Male. Unknown.

Distribution. Trinidad and Tobago.

Etymology. Named after the country where the holotype was collected.

Comparative diagnosis. This new species belongs to the morphological group with widely setose mesoscutum. Pedinotus trinidad sp. nov. is similar to P. pardalotus Marsh , but differs from it in having the vertex weakly and median mesoscutal lobe distinctly rugose (both smooth in P. pardalotus ), scutellum weakly rugose posteriorly (sparsely punctate in P. pardalotus ), mesopleuron above precoxal sulcus weakly rugose and subalar groove punctate (mesopleuron punctate with subalar groove strongly scrobiculate in P. pardalotus ), propodeum with rugose basolateral areas and without areola (basolateral areas mainly almost smooth and areola distinctly delineated in P. pardalotus ). P. trinidad is also similar to P. niger Marsh. The main morphological differences between these two species are shown in the redescription of the latter species.

Figures

FIGURE 47. Pedinotus trinidad sp. nov. (female, holotype). A, Habitus, lateral view. B, Mesosoma, lateral view. C, Head and mesoscutum, dorsal view. D, Mesosoma and basal half of metasoma, dorso-lateral view.