Acropimpla lampei, Pham, Nhi Thi, Broad, Gavin R. & Wägele, Wolfgang J., 2011

Pham, Nhi Thi, Broad, Gavin R. & Wägele, Wolfgang J., 2011, The genus Acropimpla Townes (Hymenoptera: Ichneumonidae: Pimplinae) in Vietnam, with descriptions of three new species, Zootaxa 2921, pp. 1-12 : 6-7

Acropimpla lampei sp. nov.

Diagnosis. Face black with two very small yellow marks below antennal sockets; propodeum with very short stubs of median longitudinal carinae; clypeus, scutellum and metascutellum yellow; metasomal tergites black, each with two yellow apical, lateral spots; ovipositor 2.80x as long as hind tibia.

Description (Holotype) ( Fig. 4 ). Body length 10.0 mm, fore wing 8.70 mm, ovipositor 7.0 mm. Head. Antenna with 23 flagellomeres, first flagellomere 1.20x length of second; diameter of lateral ocellus 0.78x ocellar-ocular distance; frons subpolished; face 0.76x as high as wide, slightly convex medially, with shallow, small punctures, pubescent, upper margin of face straight; clypeus with median apical notch, slightly swollen medially, apex thin and emarginate; malar space about 0.25x basal width of mandible; upper tooth of mandible slightly longer than lower tooth; occipital carina complete, meeting hypostomal carina far from base of mandible.

Mesosoma. Epomia present, about 0.65x basal width of mandible; pronotum polished; mesoscutum with dense, minute hairs, notauli shallowly present on anterior 0.35 of mesoscutum, extending to line connecting front edges of tegulae; scutellum weakly convex, pubescent, apically smooth, without striations, lateral carinae absent; mesopleuron moderately densely punctate anteriorly, polished and impunctate posteriorly, epicnemial carina weakly present on lower 0.80 of mesopleuron, lateral sections of postpectal carina present to middle of mid coxa; metapleuron polished, pubescent on upper half, pleural carina complete; propodeum moderately convex, with very short stubs of median longitudinal carinae, lateral and pleural areas with dense rugose punctures, pubescent; propodeal spiracle round. Hind leg with femur 4.30x as long as wide, length 0.77x tibia, basitarsus 0.37x tibia, 0.52x tarsus, 2.90x second tarsomere. Fore wing vein 2 rs-m 0.56x length of 3 rs -m; cu-a opposite Rs+M; cell 1+2 Rs trapezoidal, receiving vein 2 m-cu near apex; hind wing with first abscissa of vein Cu 1 about 2.70x length of vein cu-a; vein Cu 1 present.

Metasoma. Tergites densely punctate except transverse smooth bands apically and concave area at base of first tergite; first tergite 0.72x as long as apical width, dorsolateral carina complete, dorsal median carina extending to declivity; second tergite 0.61x length of apical width; 0.94x length of third tergite; ovipositor straight, 2.80x length of hind tibia, cylindrical; tip of lower valves with oblique ridges.

Colour. Antenna blackish, except lower side of scape and pedicel yellow; face black with two very small yellowish spots below antennal sockets; clypeus, mandible, upper margin of pronotum, subtegular ridge, tegula, scutellum, metascutellum yellow; fore and mid legs yellow; hind coxa, femur red, trochanter, trochantellus pale yellow; tibia pale yellow with broad apical and basal black bands, tarsomeres pale yellow with apical black bands; wings hyaline, pterostigma and veins black, except basal 0.60 of costa yellowish; metasomal tergites black with two apical, lateral yellow spots on each tergite; metasomal sternites whitish with two blackish spots on sternites 2– 5 laterally; ovipositor reddish, ovipositor sheath black and hairy.

Distribution. Currently known only from Ea So NR, Dak Lak, Central Highlands of Vietnam ( Fig. 7 ).

Ecological note. The single specimen was collected in evergreen forest.

Similar species. Acropimpla lampei is most similar to A. laevituberculata Liu, He & Chen , both lacking distinct median longitudinal carinae on the propodeum and having black faces, but differs from the latter by the shorter ovipositor (2.80x length of hind tibia versus 4.10x), yellow scutellum and metascutellum, and yellow spots on the metasomal tergites.

Etymology. This species is named after the late Dr Karl-Heinz Lampe, an entomologist at the Zoological Research Museum Alexander Koenig in Bonn, in recognition of his great contributions to hymenopteran biology and ecology.

Material examined. Holotype: Ƥ ( IEBR), Dak Lak, Ea So NR, 310 m a.s.l., 12°55’93’’N – 108°37’96’’E, 27.vii.2008, Malaise trap, leg. Ngo T. H., Ich. 903.

Figures

FIGURE 4. Acropimpla lampei sp. nov. holotype female: a. dorsal view; b. lateral view; c. lateral view of mesosoma; d. face; e. dorsal view of scutellum, metascutellum, and propodeum; f. wings; g. ovipositor.

FIGURE 7. Map showing the distributions of A. hapaliae (●), A. leucostoma (․), A. taishunensis (˔), and the type localities of A. lampei sp. nov (1), A. mucronis sp. nov (2), and A. phongdienensis sp. nov (3) in Vietnam.