Sigalphinae Haliday 1833

Zenodo (CERN European Organization for Nuclear Research)

Abstract

Key to the tribes and subtribes of the subfamily Sigalphinae 1. Metasoma attached to propodeum much higher than base of hind coxa (Figs 4A, B); propodeal bridge, sclerite separating the metasomal and coxal foramens on propodeum, present. Second radiomedial (submarginal) cell of fore wing short and relatively small (Fig. 4G). Discoidal (discal) cell of fore wing short and wide (Fig. 4G). Fossil (Baltic amber) ….. Acampsohelconini – Metasoma attached to propodeum near level of base of hind coxa; propodeal bridge absent. Second radiomedial (submarginal) cell of fore wing long and relatively large. Discoidal (discal) cell of fore wing relatively long and narrow............... 2 2. Third metasomal tergite closed posteriorly and distinctly longer than second tergite. Second tergite deeply impressed anteriorly. Second and third tergites forming carapace covering posterior segments. Afrotropical, Nearctic, Oriental and Palaearctic regions.......................................................................... Sigalphini (Sigalphina) – Third metasomal tergite open posteriorly, and medially not or only slightly longer than second tergite. Second tergite anteriorly at most with a pair of shallow depressions. Second and third tergites variable (forming or not forming carapace, and covering or not covering posterior segments)....................................................................... 4 4. Second radiomedial vein (r-m) of fore wing subvertical; third abscissa of radial vein (SR1) 1.1–1.3 × longer than second abscissa (3-SR). Discoidal (discal) cell narrow and elongate; both abscissa of basal vein (1-SR and 1-M) situated almost in one line, without break. Ovipositor relatively long, its sheath distinctly protruding behind apex of metasoma, 0.2–0.6 × as long as mesosoma. Palaearctic region, fossil (Baltic amber)....................................... Sigalphini (Acampsina) – Second radiomedial vein (r-m) of fore wing distinctly oblique, inclivous; third abscissa of radial vein (SR1) 2.5–3.5 × longer than second abscissa (3-SR). Discoidal (discal) cell wide and shortened; anterior abscissa of basal vein (1-SR) formed distinct break with posterior abscissa (1-M). Ovipositor very short, its sheath weakly or not protruding behind apex of metasoma. Neotropical region.......................................................................... Pselaphanini

Authors 3

1. Sergey А. Belokobylskij

   Russian Academy of Sciences · Zoological Institute

   Affiliation as printed

   Zoological Institute of the Russian Academy of Sciences, St Petersburg 199034, Russia

2. Cornelis Van Achterberg Aachen Naturalis Biodiversity Center

   Naturalis Biodiversity Center

   Affiliation as printed

   Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands

3. A. R. Manukyan

   Russian Academy of Sciences · Zoological Institute

   Affiliation as printed

   Zoological Institute of the Russian Academy of Sciences, St Petersburg 199034, Russia. & Kaliningrad Amber Museum, Marshal Vasilevskiy Square, 1, Kaliningrad 236016, Russia. & Zoological Institute of the Russian Academy of Sciences, St Petersburg 199034, Russia