Figure 3 in †Cretolixon - a remarkable new genus of rhopalosomatid wasps (Hymenoptera: Vespoidea: Rhopalosomatidae) from chemically tested, mid-Cretaceous Burmese (Kachin) amber supports the monophyly of Rhopalosomatinae

Figure 3. Some diagnostic characters of Rhopalosomatidae. (a) Liosphex bribri Lohrmann (in Lohrmann and Ohl, 2010), female, paratype, apical bristles on basal flagellomeres. (b) Paniscomima kilombero Lohrmann, 2011, female, paratype, last metasomal segments with upcurved sting. (c) Liosphex varius Townes, 1977, male, mesosternal lobes covering the bases of the mesocoxae. (d) Olixon ferrugineum Krogmann et al., 2009, female, paratype, apical bristles on basal flagellomeres. (e) Rhopalosoma poeyi Cresson, 1865, male, last metasomal segments with upcurved parameres. (f) Fourth instar larva of a rhopalosomatid (Olixon?) wasp on a nemobiine cricket (Nemobiinae), collected in Florida, USA (deposited in the personal collection of Volker Lohrmann). Abbreviations: ab – apical bristle; FI, FII, FIII – flagellomere 1, flagellomere 2, flagellomere 3; T5, T6, T7 – metasomal tergite 5, metasomal tergite 6, metasomal tergite 7; msl – mesosternal lobe; msc – mesocoxa; mtc – metacoxa; pa – paramere. A cutout of panel (f) was first published in Fossil Record (Lohrmann and Engel, 2017).