Psyttalia sakhalinica (Tobias, 1998)

Wu, Qiong, Achterberg, Cornelis van, Tan, Jiang-Li & Chen, Xue-Xin, 2016, Review of the East Palaearctic and North Oriental Psyttalia Walker, with the description of three new species (Hymenoptera, Braconidae, Opiinae), ZooKeys 629, pp. 103-151 : 130-133

Taxon classification Animalia Hymenoptera Braconidae

Psyttalia sakhalinica (Tobias, 1998) Figs 77, 78-88

Opius (Psyttalia) sakhalinicus Tobias, 1998: 612.

Psyttalia sakhalinica : Tobias 2000: 12.

Type material.

Holotype, ♀ (ZISP), "[Russia], 10 km z Anivy, smles, Sachalin, 15.vii.[1]981, Belokobylskij", " Opius sakhalinicus sp. n., det. Tobias, [19]95"; "Holotypus Opius sakhalinicus Tobias".

Additional material.

1 ♀ (ZISP) "[Russia], o. Kunamir, Yu.-Kurilsk, r. lesky, 19.viii.1989, A. Lelej", " Psyttalia sakhalinicus Tob., Tobias det. 2001".

Comparative diagnosis.

See Psyttalia romani (Fahringer).

Description.

Holotype, ♀, length of body 4.6 mm, of fore wing 4.8 mm.

Head. Antenna with 45 segments, bristly and erect setose and 1.3 times as long as fore wing; third segment 1.4 times as long as fourth segment, length of third, fourth and penultimate segments 2.8, 2.0 and 2.3 times their width, respectively (Figs 82, 87-88); length of maxillary palp 1.3 times height of head; length of eye in dorsal view 2.5 times temple (Fig. 84); temple in dorsal view shiny, smooth and with sparse setae; OOL: diameter of ocellus: POL = 9:5:6; area behind stemmaticum flat (Fig. 84); face coarsely punctate with interspaces about equal to diameter of punctures, with satin sheen and sparsely punctulate with a medio-longitudinal convexity dorsally and widened ventrally (Fig. 83); frons slightly depressed behind antennal sockets and in front of anterior ocellus, shiny, smooth and glabrous but laterally setose and punctulate (Fig. 84); labrum slightly depressed; clypeus transverse, convex, and its ventral margin concave, obtuse and thick (Fig. 83); width of clypeus 5.0 times its maximum height and 0.7 times width of face; hypoclypeal depression wide and deep (Figs 79, 83); malar suture indistinct except for deep depression near eye, punctate-rugose between malar suture and clypeus (Fig. 86); mandible not twisted, apically moderately narrowed and with both teeth wide; mandible normal basally and with narrow ventral carina (Fig. 86); occipital carina remains far removed from hypostomal carina and dorsally largely absent; hypostomal carina rather wide ventrally.

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope small, round; pronotal side largely smooth, but anterior and posterior grooves present and largely smooth (Fig. 79); propleuron flattened; epicnemial area smooth dorsally; precoxal sulcus medially medium-sized and only medially distinctly crenulate, absent posteriorly (Fig. 79); remainder of mesopleuron smooth and shiny; pleural sulcus smooth ventrally; mesosternal sulcus deep, narrow and finely crenulate; postpectal carina absent; mesoscutum very shiny and glabrous (Fig. 80); notauli only anteriorly as pair of nearly smooth impressions and absent on disc; scutellar sulcus deep and with 4 short crenulae, parallel-sided medially; scutellum slightly convex and smooth, but laterally sparsely punctulate and setose (Fig. 80); metanotum without a longitudinal carina medially and finely crenulate posteriorly; surface of propodeum smooth except for rugose area near distinct and reversed Y-shaped median carina (Fig. 80), lateral grooves shallow and irregularly rugose and anterior groove somewhat widened medially (Fig. 80).

Wings. Fore wing: 1-SR distinctly longer than wide and linear with 1-M (Fig. 78); pterostigma triangular and r linear with postero-basal border (Fig. 78); 1-R1 ending at wing apex and 1.4 times as long as pterostigma (Fig. 78); r linear with 3-SR and medium-sized; r-m not tubular; r:3-SR:SR1 = 5:22:44; 2-SR:3-SR:r-m = 15:22:7; 1-M and SR1 straight; m-cu distinctly antefurcal and slightly curved, 2-M+CU1 rather widened (as apex of M+CU1: Fig. 78); cu-a distinctly postfurcal and 1-CU1 widened; 1-CU1:2-CU1 = 2:11; first subdiscal cell closed; CU1b medium-sized; only apex of M+CU1 sclerotized. Hind wing: 1-M straight; M+CU:1-M:1r-m = 30:24:11; cu-a straight; m-cu absent; SR slightly indicated.

Legs. Length of femur, tibia and basitarsus of hind leg 3.9, 8.3 and 5.4 times as long as width, respectively (Fig. 85); hind femur and tibia with long setae.

Metasoma. Length of first tergite 1.1 times to its apical width, convex medio-posteriorly, its surface strongly and densely rugose (Fig. 81), dorsal carinae strong in its basal half and with depressed area below; second suture slightly indicated; basal depressions of second tergite large and tergite 0.9 times as long as third tergite; second and following tergites smooth, shiny and sparsely setose; combined length of second and third metasomal tergites 0.25 times total length of metasoma; length of setose part of ovipositor sheath 0.53 times fore wing, 3.8 times first tergite, 2.3 times hind femur and 1.7 times hind tibia; hypopygium about 0.5 times as long as metasoma, distinctly acute apically and reaching apex of metasoma (Fig. 85).

Colour. Black, but head (except dark brown frons and vertex but excluding orbita) and propleuron, propleuron ventrally, tegulae, scapus ventrally, sternites (except medially) and second-seventh tergites laterally largely orange brown; palpi, mandible (but teeth dark brown) and legs brownish yellow, but apical half of tarsi infuscate; metasoma apically, remainder of propleuron and mesopleuron anteriorly dark brown; pterostigma and veins dark brown; fore wing membrane slightly infuscate.

Variation. Length of fore wing 4.8-5.0 mm; antenna of ♀ with 44-45 segments; first tergite 1.0-1.1 times as long as its apical width, more or less flattened; precoxal sulcus nearly smooth to distinctly crenulate medially; face punctate to densely punctate-rugose; hind femur 3.5-3.9 times as long as wide; setose part of ovipositor sheath 0.51-0.53 times as long as fore wing and 1.6-1.7 times hind tibia; second tergite black or orange brown anteriorly.

Distribution.

Russia Far East.

Biology.

Unknown.