Pristomerus australiensis, Klopfstein, Seraina, 2016

Klopfstein, Seraina, 2016, Revising Australian Pristomerus (Hymenoptera, Ichneumonidae, Cremastinae): species with a tooth on the hind femur, Zootaxa 4168 (2), pp. 201-238 : 206-208

Pristomerus australiensis n. sp.

Figures 5 , 26

Etymology. This species is named after its occurrence on the Australian continent.

Description. Known from females only. Fore wing length 3.0–3.2 (holotype: 3.1) mm. Antenna with 30–31 (30) flagellomeres. Mesoscutum with only a few punctures along front margin and sometimes along notauli. Scutellum without punctures, all smooth and shining. Mesopleuron with strong and rather dense punctures, smooth in-between; below subtegular ridge with some parallel, diagonal carinulae. Metapleuron with juxacoxal carina absent or at most a short basal carina. Propodeal areas smooth with some punctures. Hind coxa coriaceous and matt, with weak punctures. Hind femur length to width ratio 4.7–4.9, ventrally with a small tooth at most half as long as width of hind tibia at mid length. Hind tibia 1.1–1.2 mm. Second tergite 2.1–2.3 × longer than wide at base, smooth and shining. Ovipositor 1.7 × as long as hind tibia.

Colouration. Antenna basally orange, remainder brown or black. Face mostly black or dark brown, with irregular orange markings around central area. Clypeus orange. Back of head black or dark brown. Mesosoma entirely orange. Hind femur red-brown, with apex yellow. Hind tibia white or yellow with dark apex and base. Fore wing somewhat infuscate. Tergite 1 orange at base, black or brown on remainder, tergites 2 onwards dark brown with orange hind margins.

Notes. The specimens from NT on average have more extended orange colouration on the metasoma, but also show variation in this character.

Material examined. Holotype ♀: Label data: '11.45S 142.35E; Heathlands QLD; 25 Jul.–18 Aug. 1992; P.Zborowski, J.Cardale; MALAISE #2 dump; open forest'; at ANIC.

Paratypes: NT—Berry Springs , Malaise trap, 12°42'S / 130°58'E; 23.vi.–6.viii.1992, leg. Wells, Webber: 4 ♀; same locality , 7.v.–23.vi.1992, 5 ♀, all at MAGNT. QLD—Hann River, 73km NW by W of Laura, at MV light, 15.12°S/143.52°E; 27.vi.1986, leg. J.C. Cardale; 1 ♀, at ANIC. QLD—Heathlands, dump, open forest. Malaise trap #2, 11.45°S/142.35°E; 18.–20.viii.1992, leg. J.Cardale, P.Zborowski; 1 ♀, at BMNH. Same locality, 25.vii.– 18.viii.1992, 3 ♀, at ANIC . QLD—Moreton HS, at light, 12.27°S/142.38°E; 27.vii.1992, leg. P.Zborowski, E.Nielsen; 1 ♀, at ANIC. QLD— 2km NE by E Mt. Tozer , at MV light, 12.44°S / 143.13°E; 1.vii.1986, leg. J.C.Cardale; 1 ♀ (cf.), at ANIC . WA— 12km S of Kalumburu Mission , CALM Site 13/4, 14.25°S / 126.38°E ; 7.– 11.vi.1988, leg. T.A. Weir; 1 ♀, at ANIC, 1 ♀, at BMNH. WA—Augustus island, CALM Site 26/1, 15.25°S/ 124.38°E; 11.–16.vi.1988, leg. I.D.Naumann; 1 ♀, at ANIC.

Figures

FIGURE 5. Holotype of Pristomerus australiensis sp. nov. A. Habitus and ovipositor tip. B. Face. C. Mesoscutum and head from above. D. Head and mesosoma from lateral. E. Propodeum. F. Metasoma. Scale bars represent 1 mm (A) and 0.5 mm (B, C, D, E, F).

FIGURE 26. Distribution maps for the species covered in this work, with the exception of P. atrifemur Girault for which only specimens of uncertain identification or with vague locality data were available.