Pristomerus venustus, 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 : 233-235

Pristomerus venustus n. sp.

Figures 25 , 26

Etymology. This is a very pretty species with bright colours and strong contrasts, hence the name ' venustus '.

Description. Fore wing length 5.2–5.9 mm (holotype: 5.9 mm). Antenna with 36–38 (38) 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 smooth and with a few or without punctures. Metapleuron with juxacoxal carina absent or at most a short basal carina. Propodeal areas and hind coxa smooth with strong punctures. Hind femur length to width ratio 4.0 in male and 3.7–4.0 (4.0) in female, ventrally with a medium sized tooth almost as long as width of hind tibia at mid length. Hind tibia 1.8–2.2 (2.2) mm. Second tergite 2.65–2.8 (2.8) × longer than wide at base, smooth and shining. Ovipositor 2.5–2.6 (2.55) × as long as hind tibia.

Colouration. Antenna basally orange, remainder brown or black. Head orange, lighter on malar space. Mesosoma including propodeum orange. Hind femur orange, with apex yellow. Hind tibia orange, sometimes with apex narrowly darkened. Fore wing somewhat infuscate. Tergites 1 and 2 orange, tergite 3 orange at base, remainder and following tergites black or brown with wide, light apical bands that are often laterally interrupted by dark round mark.

Material examined. Holotype ♀: Label data: '15.39S 144.13E; Split Rock QLD; 13 Dec 1992 – 18 Feb 1993; Malaise Trap; P. Zborowski'; at ANIC.

Paratypes: same as holotype, 10 ♀, 1 Ƌ, at ANIC; 1 ♀, at BMNH. QLD—Townsville; 26.ii.1902, leg. F.P. Dodd; 1 ♀, at BMNH.

Figures

FIGURE 25. Holotype of Pristomerus venustus 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.