Wroughtonia coffeana, 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 : 11-14

Wroughtonia coffeana , sp. nov.

Figures 27–37

TYPE MATERIAL: Holotype, ♀, “Hel. 076” ( IEBR), 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.

DISTRIBUTION: NW Vietnam: Son La.

BIOLOGY: Unknown.

DIAGNOSIS: Antenna with 32 segments; antennal segments 11–14 cream white; maxillary palp short, 1.1 × length of head; in dorsal view width of head 1.6 × its median length; height of eye 2.4 × temple; frontal protuberance acute, slightly higher than lateral frontal carina. Mesosoma 2.3 × longer than high; notauli crenulated, fused posteriorly with transversely rugose area; propodeum with basal carina and areola; areola and propodeum medially areolate-rugulose, coriaceous basally and apically. Length of forewing 3.3 × its maximum width; vein 3-SR slightly longer vein r; vein 2-M 2.6 × 3-SR; hind wing vein 1-M 0.7 × vein 1r-m; vein 2-SC+R transverse; hind wing with 3 hamuli. Foretarsus 1.4 × as long as foretibia; hind femur only with ventral serrations; length of hind femur (without serrations) 3.7 × its maximum width; outer side of hind coxa almost smooth, with scattered fine punctures; hind femur rugose-punctate. First metasomal tergite widened from base to apex, length 1.1 × its apical width (fig. 34); first tergite with dorsal carinae in basal 0.9 of tergite; median length of second tergite 0.55 × as long as its basal width; second tergite slightly longer than third tergite; first tergite nearly smooth basally and laterally, foveate-rugulose medioapically; second suture distinct; second tergite punctate laterally and foveate-punctate medially; third tergite smooth.

NOTES: W. coffeana , sp. nov., runs out in couplet 3 of the key by Yan et al. (2017), because of the following characters: frontal protuberance near antennal sockets blunt dorsally; scapus densely setose ventrally; ventral margin of hind femur without tooth-shaped protuberance and only with serrations; first metasomal tergite pale yellow and smaller (body length 4.3 mm).

DESCRIPTION: Holotype, ♀, body length 4.3 mm, forewing length 3.6 mm, ovipositor sheath 3.5 mm (fig. 27).

Head: Antenna with 32 segments; third antennal segment 1.1 × fourth (9:8); in frontal view height of eye 2.1 × its transverse width (19:9); width of face 2.0 × length of face and clypeus combined (26:13); malar space 0.85 × as long as mandible width (6:7) and 0.3 × height of eye (6:22) (fig. 29); maxillary palp short, 1.1 × length of head (36:34); in dorsal view width of head 1.6 × as long as its median length (43:27); height of eye 2.4 × as long as temple (17:7); ocelli in high triangle, POL:OD:OOL = 6:4:9; distance between front and hind ocelli 0.3 as long as OOL (3:9) (fig. 28); in lateral view height of eye 0.9 × as long as transverse width (23:15); width of eye 1.7 × as long as temple (15:9) (fig. 30); frontal protuberance acute, slightly higher than lateral frontal carina (fig. 28); face rugose; frons, vertex, and temple smooth.

Mesosoma: Mesosoma 2.3 × longer than high (80:35) (fig. 32); pronotal side largely carinate-rugose medially, largely rugose dorsally and ventrally; mesopleuron slightly depressed medially, largely smooth (fig. 32); metapleuron coarsely rugose; lobes of mesoscutum largely smooth; notauli crenulated, fused posteriorly with transversely rugose area; scutellar sulcus deep, curved, with one carina, 0.55 × as long as scutellum (5:9) (fig. 31); scutellum coriaceous; propodeum with basal carina and areola; areola and propodeum medially areolate-rugulose, coriaceous basally and apically (fig. 33).

Wings. Forewing: length of forewing 3.3 × its maximum width (107:32); pterostigma 3.7 × longer than wide (26:7); vein 3-SR slightly longer than vein r, r:2-SR:3-SR:SR1:r-m = 5:9:6:42:7; vein 1-CU1 nearly quadrate (fig. 35); cu-a:2-CU1 = 7:14;, vein 2-M 2.6 × 3-SR (13:5) (fig. 35);; hind wing vein 1-M 0.7 × vein 1r-m (6:9); vein 2-SC+R transverse (fig. 37); hind wing with 3 hamuli.

Legs: Foretarsus 1.4 × as long as foretibia (19:14); hind femur with ventral serrations, without ventral tooth-shaped protuberance (fig. 36); length of hind femur (without serrations), tibia, and basitarsus 3.7 (52:14), 7.7 (69:9), and 5.5 × (22:4) as long as their maximum width, respectively; hind basitarsus 0.3 × as long as hind tibia (22:69), and 0.6 × as long as second–fifth hind tarsal segments (22:36); fourth hind tarsal segment 0.45 × as long as telotarsus (5:11); outer side of hind coxa almost smooth, with scattered fine punctures; hind femur rugose-punctate (fig. 36).

Metasoma: Metasoma 0.9 × as long as head and mesosoma combined (48:55); first metasomal tergite widened from base to apex, 1.1 × longer than its apical width (31:28) (fig. 34); first tergite with long dorsal carinae in basal 0.9 of tergite (27:31); median length of second tergite 0.55 × its basal width (16:29), and slightly longer third tergite (16:15); first tergite nearly smooth basally and laterally, foveate-rugulose medioapically; second suture distinct; second tergite punctate laterally and foveate-punctate medially; third tergite smooth; ovipositor sheath about as long as forewing (35:36).

Color: Body dark brown, antenna brown, yellowish brown basally, with 11th–14th antennal segments cream white; palpi pale yellow; fore- and middle legs yellow; hind coxa, trochanter and trochantellus yellow; hind femur yellow basally and brown apically; hind tibia brown, but whitish yellow basally; hind tarsus pale yellow, but basitarsus basally and telotarsus brown; pterostigma and wing veins brownish yellow; wing membrane hyaline; first metasomal pale yellow; second–sixth tergites brown; ovipositor sheath brown.

Male: Unknown.

ETYMOLOGY: Named after the plant genus Coffea Linnaeus , because the new species was collected in a Malaise trap set in a coffee orchard.

Figures

FIGURE 27. Wroughtonia coffeana, sp. nov., habitus (holotype, female, lateral).

FIGURES 28–37. Wroughtonia coffeana (holotype, female). 28. Head, dorsal. 29. Head, frontal. 30. Head, lateral. 31. Mesoscutum. 32. Mesopleuron. 33. Propodeum. 34. Metasoma. 35. Forewing. 36. Hind coxa and femur, lateral. 37. Hind wing.