Pygostolus carolinae

Almeida, Luis Felipe Ventura De & Penteado-Dias, Angélica Maria, 2018, First record of the genera Centistoides van Achterberg and Pygostolus Haliday (Hymenoptera: Braconidae) in Brazil, with the description of new species, Zootaxa 4457 (3), pp. 465-473: 467-470

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Pygostolus carolinae

sp. nov.

Pygostolus carolinae  sp. nov.

( Figs 9–18View FIGURES 9–14View FIGURES 15–18)

Examined material. Holotype: ♀ “ N. Teutonia - S. C., Brasil, IX/1972, F. Plaumann leg.”[ DCBU 209139View Materials] 

Paratypes: 10 ♀ idem Holotype [DCBU 209140] [DCBU 209141] [DCBU209142] [DCBU209143] [DCBU 209780] [DCBU 209781] [DCBU 209782] [DCBU 209783] [DCBU 209784] [DCBU 209785]; 2 ♀ “ Morretes, PR, Brasil ( IAPAR)  , 20.II.1985, C.I.I.F, (Luminosa)” [DCBU 209786] [DCBU 209787]; 1 ♀ “ Sao Jose dos Pinhais, PR, Brasil, BR277- Km 54, 28.V.1985, C  . I.I.F, Luminosa ” [ DCBU 209788View Materials]; 1♀ “ Sao Jose do Barreiro, SP, Parque Nacional da Serra da Bocaina , coleta noturna, tela, 1446m, 16.XI.2015, A  .S. Soares Col.” [DCBU 209776]; 1♂ “ Ponta Grossa, (V. Velha) PR, Reserva IAPAR, BR 376, Brasil, 2.XI.1986  . Lev. Ent. PROFAUPAR, Lampada.” [ DCBU 209771View Materials]; 1♂ same data except  , 2.XII.1986 [DCBU 209772]; 1♂ same data except, 29.XI.1986 [ DCBU 209773View Materials]. 

Diagnosis. Body mostly yellowish brown with flagellum dark brown ( Fig. 9 View Figure ); wing membrane hyaline; hind leg with third tarsomere normal shaped (i.e. without spine); antenna with 29–33 flagellomeres; eye length (in dorsal view) 1.41–1.85 × temple; head height 1.21–1.48 × eye height; minimum width of face 0.93–1.23 × its height; OOL 0.36–0.66 × OD ( Fig. 12 View Figure ); malar space 0.47–0.60 × basal mandible width; pronotal sides smooth dorso-posteriorly, carinate medially ( Fig. 14 View Figure ); vein m-cu of fore wing antefurcal; T1 length 1.48–1.81 × its apical width; ovipositor 0.59–0.88 × metasoma length, distinctly curved downwards ( Fig. 17 View Figure ).

Description of female. Body length: 5.51–6.82 mm.

Coloration: Body mostly yellowish brown except metasoma with T2–T8 yellow, stematicum and tarsus brown and flagellum and ovipositor sheaths dark brown; stigma yellowish-light brown.

Head: Antenna with 31–33 flagellomeres; F1 length 2.60–2.90 × its width; F2 length 2.40–3.10 × its width; F3 with same length as F4; F3 length 2.52–2.95 × its width; F4 length 2.50–3.00 × its width; penultimate flagellomere 1.33–1.62 × its width; occipital carina complete, some specimens with a small interruption dorsally; OOL 0.36–0.66 × OD; OD 0.63–1.06 × POL; eye length (in dorsal view) 1.50–1.85 × temple; head height 1.21–1.46 × eye height; malar space 0.47–0.60 × basal mandible width; minimum width of face 0.81–0.88 × its maximum width; minimum width of face 0.95–1.05 × its height; head smooth.

Mesosoma: Pronotum mostly smooth, pronotal sides carinate medially; dorso-posterior part of pronotal sides unsculptured ( Fig. 14 View Figure ); mesonotal lobes smooth; notauli complete, carinate anteriorly, carinate-rugose posteriorly ( Fig. 13 View Figure ); scutellum smooth; scutellar sulcus smooth with four or five carinae; mesopleuron smooth and shining above precoxal sulcus, puncticulate below ( Fig. 14 View Figure ); precoxal sulcus complete, carinate; metapleuron rugose, almost smooth medially in some specimens; propodeum rugose to carinate-rugose with two rugulose areas anteriorly; mesosoma length 1.37–1.50 × its height.

Wings: Fore wing length 5.82–7.44 mm; vein r 0.11–0.14 × 3RS; vein 1CUa 0.12–0.38 × 1CUb; vein m-cu of fore wing antefurcal.

Legs: Femur length 4.33–5.23 × its width; tibia length 10.00–10.87 × its width; basitarsus length 3.66–4.90 × its width; tarsal claw simple.

Metasoma: T1costate or faintly costate with a smooth area centrally ( Fig. 15 View Figure ), its length 1.50–1.81 × its apical width; ovipositor gradually curved downwards, its length 0.59–0.88 × metasoma length.

Male. Similar to females, except: Body length 4.15–5.58 mm; antenna with 29–31 flagellomeres; OOL 0.46 × OD; OD 0.86–0.94 × POL; eye length (in dorsal view) 1.41–1.55 × temple; head height 1.34–1.48 × eye height; malar space 0.45–0.60 × basal mandible width; minimum width of face 0.84–0.88 × its maximum width; minimum width of face 0.93–1.23 × its height; clypeus and face rugulose; fore wing length 3.84–5.33 mm; vein r 0.13–0.15 × 3RS; vein 1CUa 0.27–0.37 × 1CUb; mesosoma length 1.28–1.35 × its height; femur length 4.20–4.61 × its width; tibia length 7.75–10.30 × its width; basitarsus length 4.57–4.66 × its width; T1 length 1.48–1.61 × its apical width.

Comments. Pygostolus carolinae  sp. nov is more similar to P. falcatus  . Both species have the dorso-posterior part of pronotal sides largely smooth, ovipositor sheath comparatively slender and ovipositor distinctly bent downwards. The new species can be distinguished mainly by its larger eyes and ocelli: malar space 0.45–0.60 × basal mandible width and OOL 0.36–0.66 × OD.

The larger specimens of P. carolinae  sp. nov. also resemble, P. sticticus  and P. multiarticulatus  , due to having a similar color, body size and number of flagelomeres. The new species can be distinguished from booth of these by having the dorso-posterior part of pronotal sides unsculptured. The new species can also be easily distinguished from P. sticticus  by having the ovipositor longer, clearly curved downwards and with its apex slender ( Fig. 17 View Figure ).

Distribution. Brazil; Parana, Santa Catarina and Sao Paulo state.

Etymology. This species is named after Carolina Reigada Montoya  , in recognition for her comments in an early version of this paper.