Separatatus (Parabobekoides) yinshani Zhang & van Achterberg, 2020

Zhang, Ruo-Nan, Achterberg, Cornelis van, Tian, Xiao-Xia & Tan, Jiang-Li, 2020, Review of the Bobekia - group (Braconidae, Alysiinae, Alysiini), with description of a new genus and a new subgenus, ZooKeys 926, pp. 25-51 : 25

Separatatus (Parabobekoides) yinshani Zhang & van Achterberg sp. nov. Figs 1-4 , 5-16 , 17-19 , 20-25

Type material.

Holotype: ♀ (NWUX), "NW. China: Shaanxi, Luonan, Shangluo, 34.03N, 110.10E, 9.vii.-9.ix.2017, alt. 1006 m, B[lack] Mal[aise] trap, Tan Jiangli, NWUX". Paratypes: 5 ♂ + 1 ♀ (NWUX, RMNH), same data.

Diagnosis.

Antenna of ♀ with 31-33 segments and 1.3-1.4 × longer than fore wing; face smooth laterally and remainder largely superficially rugulose (Figs 12 , 18 , 24 ); mesoscutum yellowish brown; vein r of fore wing 0.3 × as long as vein 3-SR and 0.5-0.6 (♀) - 0.7 (♂) × width of pterostigma (Figs 1 , 5 , 17 , 20 ); striae of second tergite largely longitudinal or nearly so (Figs 9 , 21 ); setose part of ovipositor sheath approx. 0.7 × as long as fore wing and nearly twice as long as hind tibia (Fig. 1 ).

Description.

Holotype, ♀, length of body 2.6 mm, of fore wing 2.8 mm.

Head: Moderately transverse and shiny, slightly concave posteriorly (Fig. 8 ), width of head 1.8 × its lateral length; antenna with 31 segments and 1.4 × longer than fore wing, segments with long bristly setae, third segment 0.8 × as long as fourth segment and 1.3 × wider than fourth segment in lateral view, length of third, fourth and penultimate segments 2.4, 4.0 and 2.8 × their width, respectively (Figs 10 , 11 ); length of maxillary palp 1.3 × height of head; eye in dorsal view 1.5 × as long as temple (Fig. 8 ); frons depressed in front of anterior ocellus and with shallow reversed V-shaped depression anteriorly (Fig. 13 ); vertex convex and very sparsely setose; OOL: diameter of ocellus: POL = 15:4:5; face 2.1 × wider than high, largely smooth laterally and dorsally, superficially rugulose medially but with longitudinal convex median area smooth (Fig. 12 ); clypeus 2.2 × wider than high, protruding, semicircular and nearly truncate medio-ventrally (Fig. 12 ); malar space virtually absent; mandible moderately widened dorsally and ventrally sinuate, dorsal tooth large and lobe-shaped, similar to ventral tooth and with minute ventral protuberance, middle tooth curved and robust; medial length of mandible 1.5 × its maximum width (Figs 14-16 ).

Mesosoma: Length of mesosoma 1.5 × its height; mesoscutum with lateral carina in front of tegulum distinct (Fig. 7 ); pronotal sides smooth except for oblique carina anteriorly; epicnemial area widely depressed and partly crenulate (Fig. 7 ); precoxal sulcus very wide, oblique, coarsely crenulate, up to anterior depression but absent posteriorly (except short depression above middle coxa; Fig. 7 ); remainder of mesopleuron smooth and largely glabrous; pleural sulcus narrowly crenulate; episternal scrobe medium-sized and oblique; metapleuron largely smooth but with some coarse carinae posteriorly, with long setae and rather small pit anteriorly; pronope medium-sized compared to length of pronotum and nearly round (Fig. 8 ); notauli crenulate and wide, but only anteriorly impressed on disc; medio-posterior depression of mesoscutum long and deep, finely crenulate and up to level of notauli (Fig. 8 ); mesoscutum strongly shiny and smooth, with some setae anteriorly and posteriorly of notauli; scutellar sulcus deep and wide, with 5 carinae and 3 × wider than its maximum length; scutellum rather convex and smooth, sparsely setose (Fig. 8 ; metanotum hardly protruding medio-posteriorly and only anterior half with median carina; medio-longitudinal carina of propodeum medium-sized, connected to (partly double) curved carina and areola incomplete, only posteriorly with pair of curved carinae and laterally crenulate, remainder largely smooth (Figs 8 , 9 ).

Wings (Figs 1 , 5 , 6 ): Pterostigma elliptical, rather swollen, apically differentiated from widened basal part of 1-R1; vein r 0.6 × width of pterostigma; r: 3-SR:SR1 = 5:19:52; SR1 straight and 2-SR curved posteriorly; cu-a subinterstitial, short; 3-CU1 much longer than CU1b; 2-SR: 3-SR: r-m = 19:19:11; m-cu postfurcal, strongly converging to 1-M posteriorly; first subdiscal cell 2.7 × as long as wide; M+CU1 largely sclerotized. Hind wing: M+CU: 1-M: 1r-m = 23:17:10; m-cu faintly indicated.

Legs: Hind coxa smooth; tarsal claws rather robust and shorter than arolium (Fig. 4 ); length of femur, tibia and basitarsus of hind leg 5.3, 11.2 and 4.4 × their width, respectively; hind leg rather conspicuously setose.

Metasoma: Length of first tergite equal to its apical width, its surface largely coarsely longitudinally striate (but striae partly converging posteriorly), its dorsal carinae widely separated (Fig. 9 ); dorsope distinct, medium-sized (Fig. 9 ); second tergite entirely coarsely longitudinally striate; third tergite smooth and in lateral view distinctly convex (Fig. 1 ); setose part of ovipositor sheath with rather short and dense setae, 0.61 × as long as fore wing (total visible sheath (including glabrous band-shaped part) 0.68 ×), 1.5 × metasoma, 3.2 × first tergite and 1.7 × as long as hind tibia; hypopygium acute apically and weakly sclerotized.

Colour: Brownish yellow; mandible, palpi, tegulum, humeral plate and legs (but hind tibia (except basally) and tarsus infuscate) pale yellowish or ivory; antenna (except 3 basal segments), mesosternum largely, scutellum laterally and posteriorly and ovipositor sheath dark brown; pterostigma (except pale yellowish apex) and most veins brown; second and third tergites slightly darkened; wing membrane subhyaline.

Variation: The wing venation of males show distinct sexual dimorphism (Figs 17 , 20 ), the pterostigma is enlarged and apically distinctly differentiated from the strongly widened basal part of vein 1-R1. Additionally, veins 3-SR, 2-M, and SR1 of fore wing are widened. The body length of females is 2.5-3.0 mm and, of males, 2.6-2.8 mm; the length of the fore wing of females is 2.8-3.0 mm and, of males, 2.7-3.0 mm; the antennal segments of females is 31(1), 33(1) and, of males, 29(1), 31(2), 32(1), and 33(1); the antenna is 1.3-1.5 × as long as the fore wing. The setose part of the ovipositor sheath is 0.61-0.63 × as long as the fore wing. The mesosternum is brownish yellow or largely dark brown, and up to basal third of the antenna may be brownish yellow or brown.

Etymology.

Named after the father of one of the co-authors (RNZ) in recognition of his support for many years.

Figures

Figures 1 - 4. Separatatus yinshani Zhang & van Achterberg, sp. nov., ♀, holotype 1 habitus, lateral aspect 2 apex of ovipositor, lateral aspect 3 antenna 4 middle tarsus and outer claw, lateral aspect.

Figures 5 - 16. Separatatus yinshani Zhang & van Achterberg sp. nov., ♀, holotype 5 fore wing 6 hind wing 7 mesosoma, lateral aspect 8 head and mesosoma, dorsal aspect 9 propodeum, first-third metasomal tergites, dorsal aspect 10 basal antennal segments 11 apical antennal segments 12 head, anterior aspect 13 head, dorsal aspect 14 head, lateral aspect 15 mandible, full view of third tooth 16 mandible, full view of first tooth.

Figures 17 - 19. Separatatus yinshani Zhang & van Achterberg sp. nov., ♂, paratype 17 habitus, lateral aspect 18 head, anterior aspect 19 genitalia, ventral aspect.

Figures 20 - 25. Separatatus yinshani Zhang & van Achterberg sp. nov., ♂, paratype 20 wings 21 propodeum, first-third metasomal tergites, dorsal aspect 22 basal antennal segments 23 apical antennal segments 24 head, anterior aspect 25 head, lateral aspect.