Wroughtonia simulata, Long & Van Achterberg & Carpenter & Oanh, 2020

Long, Khuat Dang, Van Achterberg, Cornelis, Carpenter, James M. & Oanh, Nguyen Thi, 2020, Review of the genus Wroughtonia Cameron, 1899 (Hymenoptera, Braconidae, Helconinae), with the description of 12 new species from Vietnam, American Museum Novitates 2020 (3953), pp. 1-56 : 32-34

Wroughtonia simulata , sp. nov.

Figures 92–103

TYPE MATERIAL: Holotype, ♀, “Hel.064” ( IEBR), NC Vietnam: Ha Tinh, Huong Son , 18°22′N 106°13′E, 450 m, May 5, 1998, Malaise trap, AMNH, K. Long.

DISTRIBUTION: NC Vietnam: Ha Tinh (Huong Son).

BIOLOGY: Unknown.

DIAGNOSIS: Antenna with 36 segments; antennal segments 11–18 cream white; maxillary palp 1.45 × as long as head; in frontal view width of face 1.7 × length of face and clypeus combined; frontal protuberance lamelliform and without ledge halfway; in dorsal view width of head 1.9 × as long as median length; height of eye 1.7 × temple; in lateral view height of eye 1.3 × its transverse width; transverse width of eye 1.6 × temple. Mesosoma 1.9 × longer than high; notauli wide and shallow, coarsely rugose; scutellar sulcus wide, 0.6 × scutellum; scutellum rugose-punctate; propodeum with basal carina, areolate-rugose. Length of forewing 3.0 × its maximum width; vein 3-SR 0.9 × as long as vein r; vein 2-M 2.0 × as long as vein 3-SR; hind wing vein 1-M 0.4 × vein 1r-m; hind wing with 3 hamuli. Foretarsus 1.65 × foretibia; hind femur only with serrations; length of hind femur (without serrations) 3.3 × as long as its maximum width; outer side of hind coxa finely punctate; hind femur punctate laterally. First metasomal tergite 1.3 × as long as its apical width; dorsal carinae in basal 0.8 of tergite; first tergite almost smooth basally, foveolate-rugulose medially and apically; median length of second tergite 0.6 × its basal width, and 1.2 × third tergite; second tergite rugose medially, rugose-punctate laterally; third tergite smooth.

NOTES: W. simulata , sp. nov., runs to W. zhejiangensis Yan and van Achterberg, 2017 , from China in couplet 10a of the key by Yan et al. (2017), but differs as follows: (1) frontal protuberance narrowed from base to apex, blunt apically (with posterior protruding narrow lamella in W. zhejiangensis ); (2) foretarsus 1.65 × as long as foretibia (1.1 × in W. zhejiangensis ); (3) first metasomal tergite 1.3 × as long as apical width (1.1 × in W. zhejiangensis ) and (4) antenna with 8 (11th–18th) cream white segments (6 [13th–18th] in W. zhejiangensis ).

The new species is also similar to W. albobasalis van Achterberg and Chen, 2017 , from China, but differs as follows: (1) frontal protuberance acute (triangular in W. albobasalis ); (2) hind femur more slender, 3.5 × longer than its maximum width (2.8 × in W. albobasalis ); (3) vein 1-M of hind wing 0.7 × vein 1r-m (0.4 × in W. albobasalis ); and (4) antenna dark brown with segments 11–20 cream white (3rd–11th in W. albobasalis ).

DESCRIPTION: Holotype, ♀, body length 7.1 mm, forewing length 5.3 mm, ovipositor sheath 5.6 mm (fig. 92).

Head: Antenna with 36 segments; third antennal segment slightly longer than fourth segment (15:12); in frontal view height of eye 1.9 × its transverse width (28:15); width of face 1.7 × length of face and clypeus combined (38:22); clypeus wide; malar space 1.3 × as long as mandible width (13:10) and 0.5 × height of eye (13:28) (fig. 94); maxillary palp 1.45 × as long as head (67:46); frontal protuberance lamelliform, without ledge halfway; in dorsal view width of head 1.9 × as long as its median length (65:34); height of eye 1.7 × as long as temple (22:13); ocelli in rather low triangle, POL:OD:OOL = 8:4:12 (fig. 93); distance between front and hind ocelli 0.3 × as long as OOL (4:12) (fig. 93); in lateral view height of eye 1.3 × its transverse width (28:22); transverse width of eye 1.6 × temple (22:14) (fig. 95); face longitudinally rugose; frons rugose; vertex and temple dorsally smooth; temple ventrally rugose.

Mesosoma: Mesosoma 1.9 × longer than high (90:47); pronotal side largely crenulate medially, coarsely rugose dorsally and ventrally; mesopleuron shiny, smooth medially; rugose-punctate ventrally; metapleuron areolate-rugulose (fig. 97); median lobes of mesoscutum coriaceous anteriorly and rugose posteriorly; notauli wide and shallow, coarsely rugose (fig. 96); lateral lobes of mesoscutum rugose-punctate; scutellar sulcus wide, with three carinae, 0.6 × as long as scutellum (9:16); scutellum rugose-punctate; propodeum with basal carina and areolate-rugose (fig. 98).

Wings: Forewing: length of forewing 3.0 × its maximum width (125:41); pterostigma 3.1 × as long as wide (40:13); vein 3-SR 0.9 × as long as vein r; r:2-SR:3-SR:SR1:r-m = 10:14:9:68; 1-CU1:cu-a:2-CU1 = 3:12:21; 1-M 2.2 × vein m-cu (26:12); vein 2-M almost 2.0 × as long as vein 3-SR (22:9) (fig. 102); hind wing vein 1-M 0.4 × vein 1r-m (11:27); hind wing with 3 hamuli.

Legs: Foretarsus 1.65 × longer than foretibia (43:36); hind femur only with serrations (fig. 101); length of hind femur (without serrations), tibia, and basitarsus 3.3 (60:18), 10.2 (82:8), and 6.25 × (25:4) as long as their maximum width, respectively; hind basitarsus 0.3 × as long as hind tibia (25:82) (fig. 103), and 0.75 × as long as hind tarsal segments 2–5 (25:33); fourth hind tarsal segment 0.4 × as long as telotarsus (4:11); hind coxa finely punctate laterally (fig. 99); hind femur punctate laterally (fig. 101).

Metasoma: Metasoma subequal to head and mesosoma combined (35:36); first tergite 1.3 × longer than its apical width (58:46) (fig. 100); dorsal carinae in basal 0.8 of tergite (48:58); first tergite largely smooth basally, foveolate-rugulose medially and apically (fig. 100); median length of second tergite 0.6 × its basal width (28:48), and 1.2 × third tergite (28:23); second tergite rugose medially, rugose-punctate laterally; third tergite smooth; ovipositor sheath 1.1 × as long as forewing (56:53).

Color: Head and mesosoma dark brown to black; scapus brown; antenna brown, but with 11th–18th antennal segments cream white; palpi yellow; fore- and middle legs light yellow; hind leg yellow, hind femur yellow, but apical two thirds of hind femur and extreme apex of hind tibia infuscate; pterostigma and wing veins brown; wing membrane yellow; metasoma brown; ovipositor sheath dark brown.

Male: Unknown.

ETYMOLOGY: From simulatus (Latin for “imitated, copied because this species is similar to two species ( Wroughtonia albobasalis van Achterberg and Chen and W. zhejiangensis Yan and van Achterberg ) from China.

Figures

FIGURE 92. Wroughtonia simulata, sp. nov., habitus (holotype, female, lateral).

FIGURES 93–103. Wroughtonia simulata holotype, female. 93. Head, dorsal. 94. Head, frontal. 95. Head, lateral. 96. Mesoscutum. 97. Mesopleuron. 98. Propodeum. 99. Hind coxa, lateral. 100. Metasoma 101. Hind femur, lateral. 102. Forewing. 103. Hind tibia, lateral.