Arthrolytus yazicioglui, Doğanlar, 2018

Doğanlar, Mikdat, 2018, World species of Arthrolytus (Hymenoptera Pteromalidae, Pteromalinae), with description of new species, Linzer biologische Beiträge 50 (1), pp. 255-289 : 277-279

Arthrolytus yazicioglui nov.sp. ( Figs 1h , 2n , 3k )

T y p e m a t e r i a l s: Holotype ♀, Turkey: Tokat, 6.viii. 1986, Leg. M. Doğanlar, deposited in Insect Museum of Biological Control Station, Yüreğir, Adana, Turkey (IMBC). Paratypes: 2♂ ♂, same data as the holotype.

E t y m o l o g y: The name is derived from the name of Mr. Recep Yazıcıoğlu who

was the governor of Tokat, who helped me during my works in Tokat. D i a g n o s i s: ♀: Fore wing with stigmal vein forming an acute angle (30o) with the

postmarginal vein; Antenna with combined length of pedicel plus flagellum 2.57x as long as scape; with anelli plus F1 2.25x as long as pedicellus; F6 distinctly transverse. club 1.67x as long as F1. flagellum 1.97x length of scape; POL 1.6 OOL; Forewing without black spot; with submarginal vein 1.71x as long as marginal vein; marginal vein 1.3x stigmal vein; post marginal vein equal to marginal vein. Propodeum without transverse costula, median and plicae. Metasoma fuscous, basally slightly paler 1.95x as long as broad 1.2x longer than mesosoma, as wide as mesosoma

♂: Similar to ♀ except as follows: Antenna with combined length of pedicellus and flagellum 1.26 times the breadth of the head; flagellum 4.25x length of scape; the latter almost parallel sided; pedicel 1.4x as long as wide; F1 1.2x as long as pedicel; F2 1.63x; club about 2.67 times as long as broad;. Linear sensillae on flagellar segment as: F1 1; F2 3; F3 3; F4 and F6 3-4; C1, C2 3; and C3 3 in a row; Head in lateral view 1.6x as height as long; eye long oval 1.31x as long as width; POL 1.43x OOL. Forewing with stigmal vein forming 45° angle to the postmarginal vein; the latter 1.06x marginal vein and 1.25x stigmal veins; marginal vein 1.15x stigmal vein; basal cell with 4-5 hairs distally, basal vein distinctly indicated, speculum open; Propodeum with median area about 0.8x length of scutellum; with plicae complete. femora testaceous, tibiae and tarsi yellow. Metasoma 0.72x as long as mesosoma.

D e s c r i p t i o n: The diagnostic characters of this species are given above and need not be repeated here. Some additional characters are the following:

♀: Body 1.75 mm. Head and mesosoma black, with metallic reflaction; antennal scape pale, pedicel and flagellum brown, legs with coxae femora concolorous with body, mid and hind tibiae fuscous dorsally and yellow ventrally, fore tibiae and tarsi yellow; metasoma fuscous, basal tergite testaceous. forewing hyaline, shaded behind marginal vein.

Head in lateral view 1.6x as height as long; head in dorsal about 2.63 times as broad as its maximum lengt; in dorsal view 1.15x width of mesoscutum; eye long oval 1.31x as long as width; POL 1.6x OOL. Malar space 0.37x eye length.

Antenna ( Fig. 1h ) with combined length of pedicel plus flagellum slightly more than the breadth of the head (1.1). and 2.57x as long as scape; with anelli plus F1 2.25x as long as pedicel; F2 slightly longer than broad (10:9); F3 quadrate; F4 slightly, F5-F6 distinctly transverse; club 1.95x as long as broad 1.67x as long as F1. flagellum 1.97x length of scape; Relative measurement of antenna: scape 38; pedicel 13; F1 12; F2 10; F3 9; F4-F5 8; F6 6; club 20. Linear sensillae on F1-F2, 3 in a row; F3-F6 4-5 in a row, C1-C2 6 in a row, C3 4 in a row. Forewing ( Fig. 3k ) with; costal cell 9.0-9.5 times as long as broad. with submarginal vein 1.71x as long as marginal vein; marginal vein 1.3x stigmal vein; post marginal vein equal to marginal vein, basal cell with 4-5 hairs distally, basal vein distinctly indicated, speculum open; Propodeum with median area 0.8x length of scutellum; transverse costula; median and plicae slightly developed. Metasoma 1.95x as long as broad 1.2x longer than mesosoma, as wide as mesosoma.

♂: Similar to ♀ except as follows: Body 1.63 mm long. body black with bluish metallic reflection, Metasoma black, without pale spot; legs with coxae, concolorous with body; antenna with scape, pedicel and anelli fuscous, funicular segments and club black; forewing hyaline.

Head in lateral view 32:20; in anterior view 40:32 1.25x as wide as height; in dorsal view 40: 20 1.15x wider than mesoscutum (35); wide of frons 28; lower margin of clypeus slightly emerginated in the middle; eye long oval 17:13, malar space 6. Malar space 0.35x eye length.

Antenna ( Fig. 2n ) with scape (24); flagellum (102), filiform, funicular segments as wide as pedicel, almost in same width, gradually shortening towards tip, with pedicel 0.8x as long as F1; the latter slightly constricted basally, (14:8) 1.75x as long as broad; F2 (13:8), F3-F4 1.43x, F5 1.13x as long as broad, F6 (9:8) 1.13x as long as broad; club 1.7x as long as F1; almost as long as combined length of F5+F6, about 0.75x of 3 preceding funicular segments.

Forewing with stigmal vein thin, long with a broad knob; Scutellum almost as long as width (with axillullae) 15:16; Forewing with costal cell 11.33 times as long as broad; marginal vein distinctly enlarged, measurements of m: pm: st as 33: 35: 28; Propodeum (22:12), with median area 1.83x as wide as median length, plicae complete, median carina and basal fovea absent. Metasoma narrower than mesosoma.

C o m p a r a t i v e n o t e s: ♀: Arthrolytus yazicioglui nov.sp. is similar to Arthrolytus gurderei nov.sp., Arthrolytus slovacus GRAHAM, 1969 and Arthrolytus kahvecii nov.sp. in having legs with coxae and femora mostly black, concolorous with body, at most tips of femora and tibiae and tarsi pale coloroud. But it differs from 3 species in having fore wing with stigmal vein forming an acute angle (30 o) with the postmarginal vein (in the 3 species forewing with stigmal vein forming at least 35 o angle with the postmarginal vein). A.yazicioglui nov.sp. differs from A. gurderei nov.sp. in having antenna with anelli plus F1 2.25x as long as pedicel; flagellum 1.97x length of scape; POL 1.6 OOL; forewing marginal vein 1.3x stigmal vein; post marginal vein equal to marginal vein. (in A. gurderei nov.sp.; antenna with anelli plus F1 1.32x as long as pedicel; flagellum 2.23x length of scape; POL 1.9x OOL; Forewing with marginal vein 1.94x stigmal vein; post marginal vein 1.35x marginal vein). A.yazicioglui nov.sp. differs from A. slovacus and A. kahvecii n.sp in having head in dorsal about 2.63 times as broad as its maximum length; (in A. slovacus head in dorsal about 2.25 times as broad as its maximum length; A. kahvecii nov.sp. head in dorsal about 2.31 times as broad as its maximum length); metasoma fuscous, basal tergite testaceous (in A. slovacus metasoma with a yellowish band across the basal tergite; venter extensively pale; in A. kahvecii nov.sp. metasoma testaceous with bluish reflection), and also more characters stated in the key.

In ♂: Arthrolytus yazicioglui nov.sp. similar to Arthrolytus nuridemiragi n sp. club at most 2.94x times as long as width (in other species with club at least 3.13x as long as width as seen in the key). The new species differs from A. nuridemiragi nov.sp. in having club 2.67 times as long as width; antenna with combined length of pedicellus and flagellum 1.26 times the breadth of the head; flagellum 4.25x length of scape; POL 1.43x OOL (in A nuridemiragi nov.sp. club about 2.94 times as long as broad; antenna with combined length of pedicel and flagellum almost as long as breadth of the head; flagellum 3.2x length of scape; POL 1.9x OOL), and more characters given in the key.

Figures

Fig. 1: Arthrolytus spp. ♀♀ antennae: (a) A. oezbecki DOĞANLAR, 1978); (b) A. ocellus (WALKER, 1834) (GRAHAM, 1969); (c) A. nanus ASKEW & NIEVES ALDREY, 1982; (d) A. glandium BOUCEK, 1967 (BOUCEK & RASPLUS, 1991); (e) A. magarsosensis nov.sp.; (f) A. discoideus (NEES, 1834); (g) A. usubai KAMIJO, 1981; (h) A. yazicioglui nov.sp., (i) A. gurderei nov.sp., (j) A. slovacus GRAHAM, 1969; (k) A. kahvecii nov.sp., l-n. A. maculipennis (WALKER, 1835), (l) (BOUCEK & RASPLUS 1991), (m) (GAHAN 1933), (n) (GRAHAM 1969), (o) A. keltoni nov.sp.

Fig. 2: Arthrolytus spp., ♂♂ antennae, (a) A. oezbeki DOĞANLAR, 1978; (b) A. oswaldpecki nov.sp.; (c. A. ocellus (WALKER, 1834) (GRAHAM, 1969); (d) A. glandium BOUCEK, 1967 (BOUCEK & RASPLUS 1991); (e) A. nanus ASKEW & NIEVES ALDREY, 1982; (f) A. maculipennis (WALKER, 1835) (BOUCEK & RASPLUS 1991); (g) A. discoideus (NEES, 1834); (h) A. geyrazensis nov.sp.; (i) A. incisus ASKEW & NIEVES ALDREY, 1982; (j) A. nenehatunae nov.sp.; (k) A. usubai KAMIJO, 1981; (l) A. fasciatus (PROVENCER, 1881) (BOUCEK & HEYDON 1997); (m) A. nuridemiragi nov.sp.; (n) A. yazicioglui nov.sp.

Fig. 3. Arthrolytus spp. Forewings: (a) A. oezbeki DOĞANLAR, 1978; (b) A. oswaldpecki nov.sp.; (c, d) A. ocellus (WALKER, 1834) (c) from BOUCEK (1967); (d) from BOUCEK & RASPLUS (1991); (e. A. glandium BOUCEK (BOUCEK 1967); (f1) ♀ of A. nanus ASKEW & NIEVES ALDREY, 1982; (f2) ♂ of A. nanus; (g) A. magarsosensis nov.sp.; (h) ♀ of A. discoideus (NEES, 1834), (i). ♂ of A. discoideus; (j) A. usubai KAMIJO, 1981; (k) A. yazicioglui nov.sp., (l) A. gurderei nov.sp.; (m) A. kahvecii nov.sp.; (n) A. maculipennis (WALKER, 1835) (GAHAN, 1933); (o) A. keltoni nov.sp.; (p) A. geyrazensis nov.sp.; (q) A. incisus ASKEW & NIEVES ALDREY, 1982; (r) A. nenehatunae nov.sp.; (s) A. nuridemiragi nov.sp.