Xanthopimpla amplamaculosa, Pham & Broad & Matsumoto & Wägele, 2011

Pham, Nhi Thi, Broad, Gavin R., Matsumoto, Rikio & Wägele, Wolfgang J., 2011, 3056, Zootaxa 3056, pp. 1-67 : 20-21

Xanthopimpla amplamaculosa sp. nov.

( Figs 2c, 4b, 5i, 8a, 9i, 12b, 13i, 15e)

Diagnosis. Mesoscutum medially with three longitudinal separate black spots; scutellum convex, lateral carina of scutellum high, medially about 0.5x as high as first flagellomere width, area superomedia closed, 0.65x as long as wide; tergites 4–5 densely, coarsely punctate, ovipositor sheath 0.65x as long as hind tibia; ovipositor lower valve with six transverse apical ridges.

Description (Holotype female). Body length 10.0 mm, fore wing 9.0 mm, ovipositor sheath 1.3 mm. Head. First antennal flagellomere 1.55x length of second; diameter of lateral ocellus 1.1x ocellar-ocular distance; frons smooth; face 0.85x as high as wide, with numerous fine punctures; clypeus 0.6x as high as wide, apical margin truncate; malar space about 0.25x basal width of mandible.

Mesosoma . Epomia short; mesoscutum with sparse hairs, notaulus on anterior 0.2 of mesoscutum, ending before anterior level of tegula; scutellum moderately convex, pubescent, lateral carina forming lateral flange, medially 0.5x as high as first flagellomere width, gradually narrow to apex; mesopleuron with sparse, minute punctures on upper half, moderate-sized punctures dense on lower half, pubescent, epicnemial carina present on lower 0.6, postpectal carina forming medially wide and narrow flange; metapleuron polished; propodeum polished with strong carinae, area superomedia 0.65x as long as wide; propodeal spiracle elongate. Hind leg with femur 2.1x as long as wide, 0.8x length of tibia, basitarsus 0.3x length of tarsus; 2.0x second tarsomere, third tarsomere 1.4x as long as wide; mid and hind tibiae both with four bristles near apex, three bristles at apex. Fore wing vein 2rs-m 0.75x length of 3rs-m; cu-a opposite of Rs+M; hind wing with first abscissa of vein Cu 1 about 0.3x length of vein cu-a.

Metasoma. First tergite 1.1x as long as apically wide, dorsolateral carina present before spiracle, median longitudinal carina extending nearly to oblique groove; tergite 3 with moderately dense punctures; tergites 4–6 with dense, coarse, shallow punctures; ovipositor straight, ovipositor sheath 0.65x length of hind tibia, lower valves with six apical transverse ridges.

Colour. Lemon yellow; antenna darkish brown, scape and pedicel yellow on lower side; ocellar area black; hind slope of vertex with black area medially connecting to black area on occiput; mesoscutum with three longitudinal black spots medially and black spot in front of scutellum; tegula transparent posteriorly; propodeum with black spot in first lateral area; hind trochanter marked with black, posterior face of hind femur with brown spot; basal 0.2 of hind tibia and apex of fifth tarsomere black; wings hyaline, pterostigma and veins darkish brown, except basal 0.7 of costa yellowish; tergites 1–6 each with two black spots, tergite 7 with black band; ovipositor dark brown; ovipositor sheath black.

Male. Unknown.

Variation. Metasomal tergite 3 of paratype with denser punctures than in holotype.

Comparison. This new species differs from other species in the occidentalis species group by its colour pattern. It is closest to X. exigua Krieger in having a closed area superomedia, but it differs from the latter by the straight ovipositor, not decurved at the tip, and the shorter ovipositor sheath (0.65x hind tibia versus 0.75–0.95x).

Etymology. From Latin for 'large spots', referring to the well-marked mesoscutum.

Distribution. Currently known from Cuc Phuong NP, Ninh Binh Province and Ngoc Thanh commune, Phuc Yen, Vinh Phuc Province (Fig. 20).

Ecological notes. The specimens were collected in lowland forest at elevations between 150−300 m a.s.l.

Material examined. Holotype: ♀ ( IEBR), Ninh Binh, Cuc Phuong NP, 200–300 m a.s.l, 24.iv.1998, R. Matsumoto leg. ; Paratype: 1♀, ( OMNH), Vinh Phuc, Phuc Yen, Ngoc Thanh , 150–200 m, 11.v.2005, N. T. Pham leg.