Bracon (Bracon) selviae, Beyarslan, Ahmet, 2016

Beyarslan, Ahmet, 2016, Taxonomic investigations on the Braconinae fauna (Hymenoptera, Braconidae) in north-eastern Anatolian region, Turkey, with the description of a new species, Zootaxa 4079 (1), pp. 1-33 : 8-10

Bracon (Bracon) selviae sp. n.

( Figs. 2—9 )

Description. Female ( holotype). Length of body 3.8 mm, antennae 3.4 mm, fore wing 3.6 mm, hind wing 3.0 mm, hind leg 3.4 mm, mesosoma 1.25 mm, metasoma 1.7 mm, ovipositor sheath 1.0 mm ( Fig. 2 ).

Head. Transverse, ratios of width: length: height of head = 14: 9: 14 ( Figs 3, 4 ). Antenna with 31 segments, first flagellomere 2.3 times longer than its width and as long as second flagellomere, penultimate antennal segment 1.75 as long as its width ( Fig. 5 ). Width of the hypoclypeal depression 0.38 times longitudinal diameter of eye and 0.8 times length of malar space; longitudinal diameter of eye 1.2 times longer than its transverse diameter; ratios of height of clypeus: inter-tentorial distance: tenterio-oculardistance = 5: 25: 9; length of maxillary palp 0.9 times height of head; width of face 1.3 times its height, face microsculptured and shiny, white setae; height of eye: width of face: width of head= 29: 30: 52; vertex and frons smooth and glabrous with some white setae; length of eye 2.0 times as long as temple in dorsal view; ratios of OOL: OD: POL = 15: 3: 4; basal part of mandible microsculptured; temple smooth, shiny; length of malar space 2.0 times as long as basal width of mandible and 0.4 times longitudinal diameter of eye.

Mesosoma ( Fig. 6 ). Mesosoma approximately 1.6 times longer than height; pronotum and propleuron, smooth; mesoscutum smooth, glabrous, with silvery setae; notauli very weak developed; scutellar sulcus smooth, scutellum compressed, smooth and shiny; flange of metapleuron distinctly developed; metanotum smooth, shiny; surface of propodeum in mid longitudinally scultured and with sparse silvery setae laterally.

Fore wing ( Fig. 7 ). Pterostigma almost triangular, length of pterostigma 3.4 times its maximum width, vein 1- SR+M slightly bent and 2.2 times as long as length of m-cu; vein cu-a interstitial; ratio of r: 3-SR: SR1 = 10: 25: 50; CUlb short, 3-CU1 2.0 times as long as CUlb and 0.66 times as long as m-cu; ratios of 2- SR: 3-SR: r-m: 2-M: 2-SR+M= 20: 25: 11: 40: 5.

Hind wing ( Fig. 8 ). Ratios of cu-a: M+Cu: 1-M: 1r-m: 2-SC+R: SC+R1= 10: 15: 50: 12: 5: 19; apex of C+SC+R with a row of bristles.

Legs ( Fig. 9 ). Hind coxa smooth, with long, whitish setae; femur weakly compressed; ratios of femur: tibia: basitarsus of hind leg = 40: 60: 23; length of femur, tibia and basitarsus of hind leg 3.4, 9.0 and 5.0 times their maximum width, respectively; length of hind tibial spurs 0.4 and 0.5 times hind basitarsus; length of longer fore tibial spurs 0.5 basitarsus; tibia and tarsus densely setose.

Metasoma. Length of first tergite 0.8 times its apical width and sculptured; Second tergite sculptured, medial length of second tergite 0.4 times as long as its apical length and as long as medial length of third tergite; suture between 2nd and 3rd metasomal tergites deep and sinuate; remaining tergites smooth. Ovipositor sheath 0.58 times as long as metasomal length.

Colour. Black; only mandibula, palpis labialis, palis maxillaries, fore legs completely black, middle and hind legs (coxae and middle part of the femura red) yellow red;; wing membrane hyaline; pterostigma and veins yellow, only outer edge of pterostigma black.

Male: Similar to female.

Material examined. Holotype: Female—Trabzon-Maçka, Şomla Yaylası, (euxin provice with Abies nordmanniana, Rhododendron sp., grassland area; 40051′36"N, 39032′39"E), 1677 m. 0 6.08.2005, AB., 1♀.

Paratypes: Erzurum-İspir-Çamlıkaya Ormanları, (Anatolian steppe province with Salix sp., Quercus sp., Ulmus sp., creek edge grasslands; ( 40°37'49"N, 41°10'52"E), 950 m. AB., 1♀. Ardahan-Göle-Yiğitkonağı köyü, (Subeuxin with wild grass, ( 40°56'47"N, 42°34'53"E), 1993 m. 22.06.2012, MY., 1♀. Ardahan-Çıldır, ( 41°7'47"N, 42°54'32"E), Eskibeyrehatun, (Anatolian steppe province with Anthemis sp., reeds, grassland; ( 41°7'47"N, 42°54'32"E), 1952 m. 22.08.ÖŞ., 1♀.

Allotype: Kars-Sarıkamış-Büyükkumru, (Anatolian steppe province with Pinus sylvestris , wild grass; ( 40°25'05"N, 42°28'13"E), 2400 m. 25.06.2013, AB., 1♂.

Etymology. Named in honour of Turkey’s young mathematician Ms. Selvi Kara Beyarslan.

Differential diagnosis. Bracon (Bracon) salviae sp. n. is related to B. (B.) exhilarator Nees, 1834 .

The two species are separated by the combination of the following characters:

1 (2) Mesosoma approximately 1.6 times longer than height; propodeum, first and second metasomal tergites sculptured, 2-SR 2 times as long as m-cu, body 3.8 mm............................................... Bracon (Bracon) salviae sp. n.

1 (2) Mesosoma 2 times as long as its height; propodeum and first metasomal tergite smooth; second metasomal tergite rugose, folds longituninal; 2-SR 1.4 times as long as m-cu, body 2.3–3.6 mm..................... Bracon (Bracon) exhilarator Nees.

Figures

FIGURES 2 – 9. Bracon (Bracon) salviae sp. n. 2 — Habitus, 3 — head in lateral, 4 — head in frontal view, 5 — antenna, 6 — mesosoma in lateral view; 7 — fore wing, 8 — hind wing, 9 — hind leg.