Wroughtonia vietnamica, 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 : 43-50

Wroughtonia vietnamica , sp. nov.

Figures 126–136

TYPE MATERIAL: Holotype, ♀, “Hel.039” ( IEBR), NE Vietnam: Tuyen Quang, Na Hang, Son Phu , forest, MT, 20°17′32″N 105°28′19″E, 573 m, 25.v.2017, K.D. Long. Paratype: 1♀, “Hel.019” ( VNMN), NE Vietnam: Vinh Phuc, Tam Dao NP, forest, M[alaise]T[rap], 21°17′N 105°38′E, 950 m, 1-10.vi.2012, K.D. Long .

DISTRIBUTION: NE Vietnam: Tuyen Quang (Na Hang NP), Vinh Phuc (Tam Dao NP) .

BIOLOGY: Unknown.

DIAGNOSIS: Antenna with 36–38 segments, segments 10–24 cream white; maxillary palp 1.8 × as long as head; frontal protuberance large, with distinctly ledge halfway and blunt dorsally (fig. 127); in dorsal view width of head 1.7 × its median length; height of eye 1.4 × temple; in frontal view height of eye 1.7 × its transverse width; width of face 1.8 × length of face and clypeus combined; malar space 0.3 × height of eye; in lateral view height of eye 1.3 × as long as transverse width; transverse width of eye 1.6 × temple. Mesosoma 2.2 × longer than high; notauli deep, sparsely crenulate anteriorly, fused posteriorly with two rugosities forming one median carina close to scutellar sulcus; scutellar sulcus 0.5 × scutellum; propodeum with mediobasal carina and trace of round areola, largely rugose. Length of forewing 2.9 × its maximum width; vein 3-SR 1.1 × vein r; vein 2-M 2.1 × 3-SR; hind wing vein 1-M 0.9 × vein 1r-m; vein 2-SC+R vertical; hind wing with 4 hamuli. Foretarsus 1.3 × as long as foretibia; hind femur robust, with ventral serrations and stout tooth-shaped protuberance; length of hind femur (without tooth or serrations) 3.2 × as long as its maximum width; hind coxa punctate laterally; hind femur largely rugose-punctate laterally. First metasomal tergite slightly widened apically, 1.3 × longer than its apical width; dorsal carinae in basal 0.7 of tergite; first tergite smooth basally and apically, coriaceous medially, areolate-rugulose subapically and laterally; median length of second tergite 0.4 × its apical width; length of second tergite 0.8 × as long as third tergite; second and third tergites smooth.

NOTES: W. vietnamica , sp. nov., runs in the key by Yan et al. (2017) to W. unicornis ( Turner, 1918) but differs as follows: (1) in dorsal view eye 1.4 × as long as temple (1.8–2.0 × in W. unicornis ); (2) hind femur robust, length of hind femur 3.2 × its maximum width (4.0 in W. unicornis ); and (3) vein 2-SC+R of hind wing vertical (vein 2-SC+R horizontal in W. unicornis ).

DESCRIPTION: Holotype, ♀, body length 8.6 mm, forewing length 6.9 mm, ovipositor sheath 5.4 mm (fig. 126).

Head: Antenna with 36 segments; third antennal segment 1.1 × longer than fourth segment (18:17); in frontal view height of eye 1.7 × its transverse width (30:18); width of face 1.8 × length of face and clypeus combined (43:24); malar space 0.85 × as long as mandible width (12:14) and 0.3 × height of eye (12:39) (fig. 128); maxillary palp 1.8 × as long as head (64:36); frontal protuberance large, with distinct ledge halfway and blunt dorsally; in dorsal view width of head 1.7 × its median length (78:47); height of eye 1.4 × temple (29:16); ocelli rather large, POL:OD:OOL = 6:6:17; distance between front and hind ocelli, 0.2 × OOL (4:17) (fig. 127); in lateral view height of eye 1.3 × its transverse width (39:29); transverse width of eye 1.6 × temple (28:17) (fig. 129); face coarsely rugose; clypeus rugose; frons, vertex, and temple smooth.

Mesosoma: Mesosoma 2.2 × longer than high (63:29) (fig. 131); pronotal side coarsely carinate-rugose medioanteriorly; largely rugose ventrally and posteriorly; mesopleuron smooth medially, foveolate-punctate ventrally; metapleuron areolate-rugulose; lobes of mesoscutum sparsely punctate, but median lobe largely rugose posteriorly; notauli deep, sparsely crenulate anteriorly, fused posteriorly with two rugosities forming one median carina close to scutellar sulcus (fig. 130); scutellar sulcus smooth, with 3 carinae, 0.5 × as long as scutellum (10:21); scutellum sparsely punctate; propodeum with mediobasal carina and trace of round areola (fig. 134), largely rugose.

Wings: Forewing: length of forewing 2.9 × its maximum width (106:36); pterostigma 3.3 × as long as wide (50:15); vein 3-SR 1.1 × vein r; r:2-SR:3-SR:SR1:r-m = 15:20:17:76:15; 1-CU1:cu-a:2-CU1 = 4:16:28; second submarginal cell trapezium-shaped, vein 2-M 2.1 × 3-SR (36:17) (fig. 136); hind wing vein 1-M 0.9 × as long as vein 1r-m (13:15); vein 2-SC+R vertical (fig. 135); hind wing with 4 hamuli.

Legs: Foretarsus 1.3 × longer than foretibia (39:29); hind femur robust, with ventral serrations and stout tooth-shaped protuberance (fig. 133); length of hind femur (without tooth or serrations), tibia, and basitarsus 3.2 (73:23), 8.3 (108:13), and 5.4 × (38:7) as long as their maximum width, respectively; hind coxa punctate laterally; hind femur largely rugose-punctate laterally (fig. 133); hind basitarsus 0.35 × as long as hind tibia (38:108), and 0.8 × as long as hind tarsal segments 2–5 (38:50); fourth hind tarsal segment 0.5 × telotarsus (6:13).

Metasoma: Metasoma 0.9 × as long as head and mesosoma combined (45:50); first tergite slightly widened apically, 1.3 × longer than its apical width (58:43); dorsal carinae in basal 0.7 of tergite (44:60) (fig. 132); first tergite smooth basally and apically, coriaceous medially, areolate-rugulose subapically and laterally (fig. 132); median length of second tergite 0.4 × its apical width (20:45), and 0.8 × third tergite (20:25); second suture distinct; second and third tergites smooth; ovipositor sheath 0.8 × as long as forewing (54:69).

Color: Body black; scapus black; antenna dark brown, with antennal segments 11–22 cream white; palpi pale yellow; fore- and middle legs yellow; hind coxa, trochanter and trochantellus yellow; hind femur and tibia yellow, but both apically brown; hind tarsus pale yellow; pterostigma and wing veins brown; wing membrane hyaline; metasoma dark brown to black, but first sternite cream white; ovipositor sheath brown.

Male: Unknown.

ETYMOLOGY: The new species is named after the country where the new species was discovered ( Vietnam).

VARIATION: Female paratype: body length 10.5 mm, forewing 8.7 mm, ovipositor sheath 7.0 mm, antenna with 38 segments and antennal segments 10–24 cream white.

Five Species Newly Recorded for Vietnam

Wroughtonia bifurcata Yan and van Achterberg, 2017

MATERIAL EXAMINED: 2 ♀, “Hel.011” ( IEBR), NC Vietnam: Ha Tinh, Huong Son , 18°22′N 106°13′E, 1250 m, May 20, 1998, Malaise trap, AMNH, K. Long; “Hel.063” ( AMNH), same place, but 600 m, May 2–10, 1998, Malaise trap, AMNH, K. Long .

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

BIOLOGY: Unknown.

DIAGNOSIS:

Female: body length 5.5–6.0 mm; forewing 4.0– 4.5 mm; ovipositor sheath 3.0– 3.5 mm; antenna pale yellow basally, with 31–32 segments and 9th–19th segments cream white; hind wing with 3 hamuli.

Wroughtonia brevicarinata ( Yan and Chen, 2014)

MATERIAL EXAMINED: 1♀, “Hel.028” ( VNMN), NE Vietnam: Tuyen Quang, Na Hang, Son Phu , forest, M[alaise]T[rap], 22°17′32″N 105°28′19″E, 573 m, 25.v.2017, K.D. Long; 2♂, “Hel.060” ( IEBR), NC Vietnam: Ha Tinh, Huong Son, 18°22′N 106°13′E, 450 m, April 22–May 1, 1998, Malaise [trap], AMNH, K. Long; “Hel.061” ( IEBR), same place, but 600 m, May 20, 1998, Malaise trap, AMNH, K. Long; 7♀, “Hel.062” ( AMNH), same place, but 900 m, May 18, 1998, Malaise trap, AMNH, K. Long; “Hel.067” ( IEBR), same place, but May 20, 1998, Malaise trap, AMNH, K. Long; “Hel.068” ( AMNH), same place, but May 18, 1998, Malaise [trap], AMNH, K. Long; “Hel.069” ( IEBR), same place, but 450 m, May 10–20, 1998, Malaise trap, AMNH, K. Long; “Hel.080” ( IEBR), same place, but 900 m, May 20, 1998, Malaise [trap], AMNH, K. Long; “Hel.081” ( EBR) same place, but May 18, 1998, Malaise trap, AMNH, K. Long; “Hel.082” ( AMNH), same place, but April 22–May 1, 1998, AMNH, K. Long .

DISTRIBUTION: NC Vietnam: Ha Tinh (Huong Son); NE Vietnam: Tuyen Quang (Na Hang NP).

BIOLOGY: Unknown.

DIAGNOSIS: Female, body length 6.8–8.0 mm; forewing 5.3–6.4 mm; ovipositor sheath 3.7–7.0 mm; antenna 33–36 segments, with segments 9–21 cream white; hind wing with 4 hamuli (female); with 3 hamuli (male).

Wroughtonia cornuta Cameron, 1886 (figures 137–141)

MATERIAL EXAMINED: ♀, “Hel.088” ( IEBR), N Vietnam: Ha Noi, Tu Liem, Minh Khai , citrus and sapodilla orchard, M[alaise]T[rap], 21 ° 03′31″N 105 ° 44′50″E, 10 m, 17.iv-2.v.2018, K.D. Long, N.D. Hiep ; 1♀ “Hel.015” ( IEBR), NE Vietnam: Vinh Phuc, Tam Dao NP, forest, M[alaise]T[rap], 21°17′N 105°38′E, 950 m, 20.vi.2012, K.D. Long ; 2♀, “ Hel. 017” ( IEBR), “ Hel. 018” ( VNMN), same place, but 1-10.vi.2012, K.D. Long ; 1♀, “Hel.042” ( AMNH), NE. Vietnam: Ha Giang, Vi Xuyen , Cao Bo, M [alaise]T[rap], 900 m, 05.x-05.xi.2001;, K.D. Long ; 6♀, “Hel.043”, NW. Vietnam: Son La, coffee orchard, M[alaise]T[rap], 21°18′06″N 103°55′36″E, 663 m, 01.v.2017, K.D. Long; “Hel.044,” “Hel.045,” “Hel.046” ( IEBR), “Hel.047” ( AMNH), same place, but 20.v.2017, K.D. Long ; 1♀, “ Hel. 048” ( RMNH), same place, but 01.vi.2017, K.D. Long .

DISTRIBUTION: NE Vietnam: Ha Giang ( Tay Con Linh Mts. ) , Ha Noi (Tu Liem) , Vinh Phuc (Tam Dao NP) ; NW Vietnam: Son La .

BIOLOGY: Unknown.

DIAGNOSIS:

Females: body length 7.2–8.9 mm; forewing 5.3–7.5 mm, with antennal segments 11–20 cream white (fig. 137); ovipositor sheath 6.1–7.6 mm; hind wing with 4 hamuli.

[“Hel.088”: Female, body length 8.9 mm, forewing length 7.5 mm, ovipositor sheath 7.6 mm].

Head: Antenna with 38 segments; third antennal segment 1.3 × as long as fourth; antennal segments 11–19 cream white; in frontal view height of eye 1.5 × its transverse width; width of face 1.7 × length of face and clypeus combined; malar space as long as mandible width (10:10) and 0.4 × height of eye; maxillary palp 1.6 × as long as head; in dorsal view width of head 1.6 × its median length; height of eye 1.8 × as long as temple; in lateral view width of eye 1.35 × as long as temple; POL:OD:OOL = 10:6:17; distance between front and hind ocelli 0.3 × as long as OOL; frontal protuberance long, acute and raised above lateral carina of frons; face coarsely rugose; frons deeply depressed, smooth; vertex rugose-punctate anteriorly, smooth medioposteriorly, occiput largely smooth; temple largely rugosepunctate, but coarsely rugose ventrally.

Mesosoma: Mesosoma 2.25 × longer than high; pronotal side coarsely rugose; mesopleuron largely smooth medially, rugose-punctate ventrally (fig. 139); metapleuron coarsely rugose; median lobe of mesoscutum largely finely punctate, but rugose lateroapically; notauli narrow, sparsely crenulate, fused posteriorly with mediolongitudinal carina; scutellar sulcus wide, with one carina, 0.9 × as long as scutellum; scutellum strongly narrowed posteriorly, rugose-punctate; propodeum without areola and coarsely rugose.

Wings: Forewing: length of forewing 3.5 × its maximum width; pterostigma 4.0 × longer than wide; vein r arising from basal 0.8 of pterostigma; vein 3-SR 1.3 × vein r; r: 2-SR:3- SR:SR1:r-m = 12:13:9:60:10; 1-CU1: cu-a:2-CU1 = 3:10:21; vein 1-M 2.3 × as long as vein r-m; second submarginal cell trapezium shaped, long base 2.1 × as long as its short base; hind wing vein 1-M 0.8 × as long as vein 1r-m (14:18); hind wing with 4 hamuli.

Legs: Foretarsus 1.3 × longer than foretibia; hind femur long, ventral protuberance of hind femur tooth shaped and stout (fig. 140); length of hind femur (without tooth), tibia and basitarsus 5.0, 12.8, and 8.0 × as long as their maximum width, respectively; hind tibia slightly curved basally (fig. 141); hind basitarsus 0.3 × as long as hind tibia; outer hind tibial spur 0.2 × as long as telotarsus; hind basitarsus 0.75 × as long as hind tarsal segments 2–5; fourth hind tarsal segment 0.4 × as long as telotarsus; outer side of hind coxa sparsely finely punctate; hind femur densely punctate laterally.

Metasoma: Metasoma 0.8 × as long as head and mesosoma combined; first tergite 1.8 × longer than its apical width (fig. 138); median length of second tergite 0.75 × its basal width; dorsal carinae in basal 0.4 of tergite; first tergite smooth basally and medially narrowly foveolate-punctate; second tergite 1.4 × longer than third tergite; second tergite sparsely puncticulate basolaterally, almost smooth; remainder of metasoma shiny and smooth; ovipositor sheath almost as long as forewing and 0.85 × as long as body.

Wroughtonia indica (Singh, Belokobylskij and Chouhan, 2005)

MATERIAL EXAMINED: 3♀, “Hel.030” ( IEBR), NE Vietnam: Tuyen Quang, Na Hang, Son Phu , forest, M[alaise]T[rap], 22°17′32″N 105°28′19″E, 573 m, 25.v.2017, KD Long .

DISTRIBUTION: NE Vietnam: Tuyen Quang (Na Hang NP).

BIOLOGY: Unknown.

DIAGNOSIS: Female: body length 6.3 mm; forewing 5.2 mm; ovipositor sheath 3.7 mm; hind wing with 3 hamuli.

Wroughtonia varifemora Yan and Chen, 2017

MATERIAL EXAMINED: 4♀, “Hel.050” ( IEBR), “Hel.051” ( AMNH), NC Vietnam: Ha Tinh, Huong Son , 18°22′N 106°13′E, 450 m, April 20–28, 1998, Malaise trap, AMNH, K. Long; “Hel.052” ( IEBR), same place, but May 5, 1998, Malaise trap, AMNH, K. Long; “Hel.053” ( AMNH), NC Vietnam: Ha Tinh, Huong Son, Kim Son, Rao An, forest path, 20.iv.1998, sweeping, K.D. Long .

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

BIOLOGY: Unknown.

DIAGNOSIS: Female: body length 12.4–13.3 mm; forewing 10.7–11.0 mm; ovipositor sheath 13.0– 13.5 mm; antenna pale yellow basally and with 39 segments; hind wing with 4 hamuli.

Wroughtonia unicornis ( Turner, 1918) (already recorded by Long and Belokobylskij, 2003)

MATERIAL EXAMINED: 1♀, “Hel.005” ( IEBR), S Vietnam: Lam Dong, Bi Doup NP, 01.iv.2008, N.D. Hiep .

DISTRIBUTION: S Vietnam: Lam Dong (Bi Doup NP).

BIOLOGY: Unknown.

DIAGNOSIS: Female: body length 9.0 mm; forewing length 7.5 mm; ovipositor sheath 8.6 mm; antenna with 36 segments and segments 12–19 cream white; hind wind with 4 hamuli. Frontal protuberance single; length of forewing 3.4 × its maximum width; vein 3-SR 1.4 × as long as vein r; long base of second submarginal cell nearly 2.0 × as long as short base; hind wing vein 1-M 0.8 × vein 1r-m; hind wing with 4 hamuli; foretarsus 1.45 × longer than foretibia; hind femur slender, with ventral serrations and stout tooth-shaped protuberance; length of hind femur (without tooth and serrations) 4.0 × longer than its maximum width; first metasomal tergite 1.5 × longer than its apical width; dorsal carinae in basal 0.9 of tergite; first tergite largely smooth basally and apically and remainder largely foveate-reticulate; median length of second tergite 0.55 × its basal width, and 1.1 × third tergite; second suture indistinct medially; second and third tergites smooth.

Figures

FIGURE 126. Wroughtonia vietnamica, sp. nov., habitus (holotype, female, lateral).

FIGURES 127–136. Wroughtonia vietnamica holotype, female. 127. Head, dorsal. 128. Head, frontal. 129. Head, lateral. 130. Mesoscutum. 131. Mesopleuron. 132. Metasoma. 133. Hind coxa and femur, lateral. 134. Propodeum. 135. Hind wing. 136. Forewing.