Pantolyta complanata Chemyreva, Yun et Ku, sp. n.

https://zoobank.org/NomenclaturalActs/ 60951D75-E965-4291-9FD0-2FDA5F0B8ABE

Figs 1, 2, 9–13, 29, 31, 37

TYPE MATERIAL. Holotype – ♀, South Korea: Gyeongsangnam-do, Oryangri, Sadeung-myeon, Geoje-si, 34°52ʹ50.67ʹʹN 128°30ʹ30.48ʹʹE, MT, 20. VI –04.VII 2017, leg. Hyung-Keun Lee (NIBR). Paratypes: South Korea: the same locality, coordinates, collector and data as holotype, 1 ♂ (ZISP); same locality, coordinates and collector as holotype, 04.VII 2017, 1 ♀ (ZISP); Russia: Amurskaya Oblast, 30 km SE from Arkhara, 21–24.VII 2003, 1 ♂, leg. S. Belokobylskij (ZISP).

DIAGNOSIS. Pantolyta complanata sp. n. can be distinguished from all known species of Pantolyta by the combination of the following characters: head not nasiform (Fig. 12), opisthognathous (Fig. 11) and depressed; mouth conus weakly developed (Fig. 10); eye with scattered short setae; female antennae slender, broadened and slightly compressed apically (Fig. 9); A1–A6 pale brown, A7–A14 dark brown, A15 yellowish; in dorsal view all antennomeres elongate and gradually change from very long A3 (3.5 times as long as wide) to slightly elongate A14 (1.1 times as long as wide); male A3 with distinct emargination and carina reaching half of this segment length (Fig. 31); mesosoma compressed; pronotal pit bare, with distinct epomia inside (Fig. 11); pronotal collar without transverse carina between pronotal shoulders, smooth (Fig. 12); pronotal shoulders weakly projecting, with sharp epomia on it (Figs 11, 12); each axillar depression with one verriculate tubercle anteriorly and a group of verricules posteriorly (Fig. 12); mesopleural subalar bridge absent (Fig. 11); median propodeal keel simple; upper and lower posterior propodeal projections are not developed (Fig. 13); fore wing with open radial cell; postmarginal vein present like a short trace (Fig. 37).

DESCRIPTION. FEMALE (holotype). Body length 2.5 mm; fore wing length 1.7 mm; antenna length 1.7 mm (Figs 1, 2). Coloration: head dark brown; mesosoma mainly brown; propodeum and metasoma pale brown; mandibles, palpi, legs and tegulae yellowish; antennae coloration as described in diagnosis.

Head in dorsal view, 0.8 times as long as wide, 1.4 times as wide as mesosoma. Occipital flange (=occipital carina) very narrow, setose. Malar space 0.75 times as long as largest diameter of eye. Eyes enlarged, as wide as high. Antennal shelf in front view and lower face smooth. Labrum semicircular without middle groove. Pleurostomal distance 0.53 times as long as shortest distance between eyes. Mandibles asymmetrical (three-toothed and two-toothed). Distance between antennal foramens as wide and its diameter. Ratios of length to width of A1–A 15 in lateral view as in Fig. 9.

Mesosoma 1.4 times as high as wide, in dorsal view 2.1 times as long as wide. Mesoscutum 0.8 times as long as wide, convex. Metanotum narrow, bare laterally but metascutellum setose, with three longitudinal keels, the median keel higher than lateral one. Propodeum sparsely pubescent, smooth dorsally; sides of propodeum and metapleura with three longitudinal carinae below plica: lateral propodeal carina, metapleural carina and metapleural epicoxal carina, and they all almost parallel to each other; plicae and other carinae not projecting posteriorly. Legs slender. Venation as in Fig. 37.

Petiole slightly broadened anteriorly, sparsely pubescent dorsally and laterally, ventrally with a row of verricule, 2.5 times as long as its median width, longitudinally carinate (Fig. 13). Gaster very narrow, compressed (Fig. 1); T2 anteriorly with three grooves median longer, lateral shorter; T3–T6 short, smooth, with a few setae. T7 and T8 elongate, together as long as S6 and all strongly compressed. S2 mainly smooth, with short striation and a verricule at base and scattered setae, S2 setae lines distinct anteriorly; S3–S5 short, smooth, with a few erect setae.

MALE. Body length 2.6 mm. Similar to female except following characters: antenna filiform, about as long as body (Fig. 29); antennomeres cylindrical, with pubescence as long as width of corresponding antennomere; base of T2 with more grooves: long median and two laterals; T7, S3–S7 short; T8 and S8 subtriangular, rounded apically.

ETYMOLOGY. This species name is derived from the Latin word complanatus (flattened) in refers to the depressed head and compressed body of this new species.

BIOLOGY. Unknown.

DISTRIBUTION. Russia (Far East), South Korea.