Xestopelta striata, Riedel & Diller & Japoshvili, 2018

Riedel, Matthias, Diller, Erich & Japoshvili, George, 2018, The Ichneumonid fauna (Hymenoptera: Ichneumonidae) of Lagodekhi Reserve, Sakartvelo (Georgia), with descriptions of four new species, Linzer biologische Beiträge 50 (2), pp. 1447-1507 : 1499

Xestopelta striata nov.sp. ( fig 6 )

Holotype: (♀) Georgia, Mt. Lagodekhi , 1351 m, N 41.52288 E 46.19311, M. T., 15-25.VII.2014 (Tbilisi).

Paratypes: (♀) Georgia, Mt. Lagodekhi , 1351 m, N 41.52288 E 46.19311, M. T., 15-25.VII.2014 ( ZSM, Munich); (♂) Georgia, Mt. Lagodekhi 1902 m, N 41.53135 E 46.19447, M. T., 15- 25.VII.2014 (Tbilisi) .

R e m a r k: The new taxon can be differentiated from all other European Xestopelta species by the yellow stripe on ventral mesopleuron and black external stripes on the yellow femora, tibiae and tarsi.

Description: ♀: Body length 4.5 mm. Flagellum filiform, slender, with 19 flagellomeres; 1 st flagellomere c.6x longer than wide. Legs slender, hind femur 5.7x longer than wide. 1 st tergite 1.4x longer than wide, widest in basal 0.3 at spiracles, with some fine aciculation in the apical 0.3; 2 nd tergite 0.88x as long as wide, finely aciculate in the basal 0.3. Structure otherwise as described for the genus Xestopelta (see KLOPFSTEIN 2014: 113).

Color: Black. Flagellum reddish-yellow, dorsally blackish in proximal 2/3; scapus and pedicel yellow ventrally. Face black; mandible, clypeus, malar space and inner orbit up to lateral ocellus yellow. Mesosoma black; yellow are upper hind edge and small spot on ventral edge of pronotum, large shoulder mark with inner part elongated almost to the caudal margin of mesoscutum, tegula and subtegular ridge, ventral stripe on mesopleuron and frontal mark on mesosternum, upper mesepimeron, scutellum and postscutellum. Metasoma black; postpetiolus with small yellow caudal-median spot; 2 nd to 5 th tergites with yellow triangular spots caudal-medially; epipleura of tergites 2-7 yellow; 2 nd to 4 th sternites yellow except black central stripes. Legs yellow; hind coxa narrowly black basally; hind trochanter black; all femora, tibiae and tarsi with blackish stripes externally. Pterostigma hyaline.

♂: Body length 4.2 mm. Flagellum filiform, slender, with 20 flagellomeres; flagellomeres without tyloids; 1 st flagellomere 6x longer than wide. Legs slender, hind femur 6.4x longer than wide. 1 st tergite c.2.0x longer than wide, widest in basal 0.3 at spiracles, with some fine aciculation in apical 0.3; 2 nd tergite finely aciculate in basal half.

Color: Flagellum yellow, reddish-brown dorsally. Face, clypeus and gena completely yellow, frontal orbit widely yellow up to lateral ocellus. Propleurum yellow. Sternites except brownish lateral spots on 2 nd and 3 rd sternites completely yellow. Parameres brownish, yellow in apical half. Coloration otherwise as described for the ♀.

Figures

Fig 6: Xestopelta striata nov.sp. holotype: habitus.