Gasteruption lacoulee, Jennings, John T., Jourdan, Hervé, Krogmann, Lars & Parslow, Ben A., 2015

Jennings, John T., Jourdan, Hervé, Krogmann, Lars & Parslow, Ben A., 2015, The gasteruptiid wasp fauna of New Caledonia, with description of three new species of Gasteruption (Hymenoptera: Evanioidea: Gasteruptiidae), Zootaxa 3947 (3), pp. 397-406 : 399-400

publication ID	https://doi.org/ 10.11646/zootaxa.3947.3.6
publication LSID	lsid:zoobank.org:pub:90567DE4-12F1-416B-B494-93C9060E2928
DOI	https://doi.org/10.5281/zenodo.6113646
persistent identifier	https://treatment.plazi.org/id/6A5A87A8-FFF5-5543-54E0-FB44FD3AFD6A
treatment provided by	Plazi
scientific name	Gasteruption lacoulee
status	sp. nov.

Treatment

Gasteruption lacoulee sp. nov. Jennings, Krogmann & Parslow

Figs 1 View FIGURE 1 , 2 View FIGURES 2 – 5 , 6–7 View FIGURES 6 – 11 , 12–13 View FIGURES 12 – 17

Material examined. Holotype: ♂, “ New Caledonia: Bank La Coulee River, 22 14.153S, 166 34.155E, sweeping, 29.xi.2009, J.T. Jennings” ( MNHN). Missing right fore tarsi, left fore leg ts2–5 and claw, right mid leg ts3–5 and claw, left mid leg trochanter onwards, entire left hind leg; metasoma in gelatine capsule; genitalia not visible.

Male. Length. 9.60 mm.

Colour. Black, except antennae and metasoma dark brown, mandibles largely cream except brown at apex and base; fore and mid legs brown, lateral tibia white, and basitarsus white, ts2 brown; hind leg brown, inner lateral surface of tibia paler, basitarsus cream in apical half, ts2-ts4 cream, ts5 and claws brown; wings hyaline, veins and pterostigma brown.

Head. More or less quadrate in dorsal view, 0.94 x longer than wide; face and frons punctulate, with long pubescence, indistinct frontal carina; vertex punctulate, short pubescence; occipital carina narrow; gena punctulate, with long pubescence; malar space 0.10 x height eye; clypeus 5.08 x as wide as high, margin sinuate, with long setae; mandibles broad, with one large medial tooth; distance from lateral ocellus to eye margin 0.65 x distance between lateral ocelli; scape 0.70 x length pedicel; first flagellomere 0.70 x as long as scape, 0.56 x length second flagellomere.

Mesosoma. Propleuron 0.88 x length pronotum, punctulate, dense long pubescence; pronotum punctulate, pubescent; mesoscutum ( Figs 6–7 View FIGURES 6 – 11 ) in lateral view rounded antero-dorsally, medial and lateral lobes punctulate, with short pubescence, parapsidal lines indistinct; notauli more or less V-shaped, crenulated ( Fig. 7 View FIGURES 6 – 11 ); mesoscutellum and axillae punctulate; mesopleuron and metapleuron areolate-rugose; mesopleural groove broad, rugose ( Fig 7 View FIGURES 6 – 11 ); propodeum areolate-rugose, posterior margin weakly scrobiculate medially; hind coxa strigaterugose; hind trochanter rugulose, groove present; femur imbricate, with very short pubescence; prefemur small, about one-third length of trochanter; hind tibia imbricate, generally short pubescence, longer near apex; hind femur 1.03 x length hind tibia; hind tibia and tarsi without ventro-apical pecten of short robust spines; hind ts1, 3.15 x length ts2; ts2, 1.60 x length ts3; ts3, 1.20 x length ts4; ts4 0.63 x length ts5; hind tarsal claw 0.50 x length ts5; fore wing with first discal cell subtrapezoidal, formed by veins 1-Rs+M, 1-Cu, 2-Cu and 1m-cu; fore wing vein 2-M tubular in apical third, tubular portion not ending with small node, remaining two-thirds nebulous ( Fig. 2 View FIGURES 2 – 5 ); hind wing with only vein R+Rs ( Fig. 2 View FIGURES 2 – 5 ), two hamuli on right wing and three equidistant hamuli on left wing.

Metasoma. 3.36 x length of mesosoma; tergites punctulate.

Female Unknown

Etymology. This species is named after the type locality, La Coulée River, Grand Terre, New Caledonia.

Comments. Gasteruption lacoulee sp. nov. and G. sarramea sp. nov. are similar in size (9.6 and 10.5 mm respectively), but both species are much smaller than G. maquis sp. nov. (25.7 mm). The former two species can be readily distinguished from each other by the more or less quadrate head in G. lacoulee ( Figs 12–13 View FIGURES 12 – 17 ) versus the distinctive elongate head in G. sarramea ( Figs 16–17 View FIGURES 12 – 17 ).