Wroughtonia phiaoaca Oanh & Long & Pham & Mai & Nghiep 2024, sp. nov.
Creators: name: Oanh, Nguyen Thi
name: Long, Khuat Dang
name: Pham, Nhi Thi
name: Mai, Pham Quynh
name: Nghiep, Hoang Thi
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Wroughtonia
Wroughtonia phiaoaca

description: Wroughtonia phiaoaca Long, sp. nov.
Figures 1, 2, 5
Type material. Holotype, ♀, “Hel. 109 ” (IEBR), NE Vietnam: Cao Bang, Nguyen Binh, Phia Oac-Phia Den NP, forest periphery, 22°34’16’’N 105°52’30’’E, 1040m, light trap, 3.vi.2023, KDLong.
Diagnostic characters.Antenna with 31 flagellomeres, 8 th –17 th flagellomeres creamy white; frontal protuberance lamelliform, with distinctly ledge halfway and acute dorsally (Figs 2C, D); in dorsal view width of head 1.6 × its median length; height of eye 2.0 × temple (Fig. 2A); in frontal view, width of face 1.7 × length of face and clypeus combined; malar space 0.8 × height of eye; in lateral view height of eye 1.5 × as long as transverse width; transverse width of eye 1.7 × temple (Fig. 2D). Mesosoma 2.3 × longer than high; in lateral view, mesoscutum perpendicularly raised above pronotum; notauli wide, sparsely crenulate anteriorly, fused posteriorly with one median rugosity in areolate-rugose area of mesoscutum (Fig. 2E); scutellar sulcus 0.8 × scutellum; propodeum with medio-basal carina and trace of round areola, largely rugose. Length of fore wing 3.3 × its maximum width; vein 3-SR 1.1 × as long as r; vein 2-M 2.2 × 3-SR; hind wing vein 1-M 0.7 × 1r-m; vein 2-SC+R vertical. Fore tarsus 1.3 × as long as fore tibia; hind femur comparatively robust, with ventral serrations and without stout tooth-shaped protuberance; length of hind femur (without tooth or serrations) 3.05 × as long as its maximum width; hind coxa mostly smooth laterally, with sparse fine punctures and rather dense setae; hind femur largely rugose-punctate laterally. First metasomal tergite 1.15 × longer than its apical width; dorsal carinae in basal 0.6 of tergite; first tergite areolate-rugulose medially (Fig. 2H); median length of second tergite 0.6 × its apical width; second tergite 0.8 × as long as third tergite; second tergite foveate-reticulate medially; the remaining tergites shiny, smooth.
Notes. W. phiaoaca sp. nov. is similar to W. bifurcata Yan & van Achterberg, but can be distinguished by the following characters: 1) vein 1-M of hind wing 0.7 × 1r-m (vs 1.1 × in W. bifurcata); 2) hind femur rugo-punctate laterally (vs sparsely punctate in W. bifurcata), and 3) second metasomal tergite foveate-reticulate medially (vs rugo-punctate medially).
The new species is also similar to W. coffeana Long, but differs from the latter by the following characters: 1) frontal protuberance lamelliform, bifurcate, with distinctly ledge halfway and acute dorso-posteriorly (vs frontal protuberance lamelliform, with ledge halfway and blunt dorso-posteriorly); 2) first metasomal tergite subequal to its apical width (vs 1.1 × in W. coffeana); 3) length of hind femur 3.05 × as long as its maximum width (vs 3.7 × in W. coffeana); 4) outer side of hind coxa punctate, and of hind femur rugo-punctate (vs hind coxa nearly smooth and hind femur sparsely punctate). Wroughtonia phiaoaca sp. nov. runs out to couplet 4 in the key by Long et al. (2020) as follows:
4a. Frontal protuberance lamelliform, bifurcate and acute dorso-posteriorly (4a); Hind femur slenderer, weakly concave apicoventrally, its length 3.7 × as long as maximum width, outer side of hind femur sparsely punctate, sparsely setose ventrally (4aa); second submarginal cell of fore wing narrowed apically (see Fig. 35 in Long et al. 2020); vein 2-M of fore wing 2.6 × 3-SR.................................................................................. W. coffeana Long, 2020
4a’. Frontal protuberance lamelliform, bifurcate and acute dorso-posteriorly (4b); hind femur robust, distinctly concave apicoventrally, its length 3.05 × as long as maximum width, outer side of hind femur rugo-punctate, densely setose ventrally (4bb); vein r of fore wing exiting from before middle of pterostigma; second submarginal cell of fore wing broad (Fig. 2I); vein 2-M 2.2 × 3-SR..................................................................... W. phiaoaca Long, sp. nov.
Description. Holotype, ♀, body length 6.8 mm, fore wing length 5.4 mm, ovipositor sheath 5.0 mm (Fig. 1).
Head. Antenna with 31 flagellomeres; first flagellomere 1.1× longer than second flagellomere; in frontal view, height of eye 2.2 × its transverse width; width of face 1.7 × length of face and clypeus combined; malar space 0.8 × as long as mandible width and 0.3 × height of eye (Fig. 2B); maxillary palp 1.25 × as long as head; frontal protuberance lamelliform, bifurcate and acute dorsally; in dorsal view width of head 1.6 × its median length; height of eye 2.0 × temple; ocelli small, OOL: OD: POL = 10: 4: 5; distance between front and hind ocelli 0.3 × OOL (Fig. 2A); in lateral view height of eye 1.5 × its transverse width; transverse width of eye 1.7 × temple (Fig. 2D); face coarsely rugose laterally, transversely rugose medially; clypeus rugose; frons, vertex and temple shiny, smooth.
Mesosoma. Mesosoma 2.3 × longer than high (Fig. 2F); pronotal side coarsely carinate-rugose medially; largely rugose ventrally and dorsally; mesopleuron smooth medially, largely rugo-punctate ventrally; metapleuron areolate-rugulose; median lobe of mesoscutum coriaceous anterio-medially, largely rugose laterally and posteriorly; lateral lobes of mesoscutum largely smooth laterally; notauli wide, sparsely crenulate anteriorly, fused with one rugosity posteriorly in areolate-rugose area of mesoscutum (Fig. 2E); scutellar sulcus smooth, with 3 carinae, 0.8 × as long as scutellum; scutellum sparsely punctate; propodeum with medio-basal carina, largely areolate-rugose laterally, areola with three transverse carinae (Fig. 2K).
Wings. Length of fore wing 3.3 × its maximum width; pterostigma 5.0 × as long as wide; vein 3-SR 1.1 × vein r; r: 2-SR: 3-SR: SR1: r-m = 11: 16: 12: 66: 9; 1-CU1: cu-a: 2-CU1 = 4: 12: 21; second submarginal cell trapezium-shaped, vein 2-M 2.2 × 3-SR (Fig. 2I); vein 1-M of hind wing 0.7 × as long as vein 1r-m; vein 2-SC+R longitudinal (horizontal) (Fig. 2J); hind wing with 3 hamuli.
Legs. Fore tarsus 1.3 × longer than fore tibia; hind femur comparatively robust, with ventral serrations and without stout tooth-shaped protuberance, distinctly concave apico-ventraly, densely setose ventrally (Fig. 2G); length of hind femur (without tooth or serrations), tibia and basitarsus 3.05, 9.6 and 5.8 × as long as their maximum width, respectively; hind coxa mostly smooth laterally, with sparse fine punctures and rather dense setae; hind femur rugo-punctate laterally; hind basitarsus 0.3 × as long as hind tibia, and 0.6 × as long as second–fifth hind tarsus; fourth hind tarsus 0.5 × telotarsus.
Metasoma. Metasoma 0.7 × as long as head and mesosoma combined; first tergite 1.15 × apical width; dorsal carinae in basal 0.6 × of tergite, fusing into medio-apical areolate-rugulose area of the tergite (Fig. 2H); first tergite areolate-rugulose, except basal area smooth (Fig. 2H); median length of second tergite 0.4 × its apical width, and 0.8 × as long as third tergite; second suture wide; second tergite foveate-reticulate medially (Fig. 2H); third–sixth tergites smooth; ovipositor sheath 0.9 × as long as fore wing.
Colour. Head black; antenna dark brown, with 8 th –17 th flagellomeres cream white; palpi pale yellow; mesosoma black; fore and middle legs yellow; hind coxa, trochanter and trochantellus yellow; basal one third of hind femur yellow, and apical two third blackish-brown; basal one third of hind tibia whitish-yellow, and apical two third blackish-brown; hind tarsus whitish-yellow, except telotarsus brown apically; pterostigma and wing veins brown; wing membrane hyaline; metasoma brownish-yellow; ovipositor sheath brown; ovipositor brown.
Male: Unknown.
Etymology. The new species is named after Phia Oac mountain of Phia Oac-Phia Den National Park, where the new species was discovered.
Host. Unknown.
Distribution. Northeastern Vietnam (Cao Bang province) (Fig. 5).
description: Published as part of Oanh, Nguyen Thi, Long, Khuat Dang, Pham, Nhi Thi, Mai, Pham Quynh & Nghiep, Hoang Thi, 2024, Addition to the review of the genus Wroughtonia Cameron, 1899 (Hymenoptera, Braconidae, Helconinae) from Vietnam: Description of two new species, pp. 221-235 in Zootaxa 5446 (2) on pages 222-226, DOI: 10.11646/zootaxa.5446.2.4, http://zenodo.org/record/11101652