Morphological phylogeny and taxonomic revision of the former antlion subtribe Periclystina (Neuroptera: Myrmeleontidae: Dendroleontinae) Author Machado, Renato Jose Pires Author Oswald, John David text Zootaxa 2020 2020-06-16 4796 1 1 322 journal article 10.11646/zootaxa.4796.1.1 1175-5326 3896810 66DD1FEB-6BDE-4AEB-8A7B-96594371E9C5 Key to species of Riekoleon 1 Profemur ≥ 3.5x length of procoxa; male ectoproct with a tubularly-produced posteroventral lobe ( Fig. 152a )....................................................................................... ( convergens species group) … 6 - Profemur <3.5x length of procoxa; male ectoproct without a tubularly-produced posteroventral lobe ( Fig. 166a )..........................................................................................( rudda species group) … 2 2 (1’) Forewing: first fork of RP in proximal half of wing ( Fig. 165a ); female anterior gonapophysis present (a small rounded plate) ( Figs. 166 d–e)........................................................................................ 3 - Forewing: first fork of RP in distal half of wing ( Fig. 154c ); female anterior gonapophysis absent ( Figs. 155 d–e)............................................................................................. R. distivenus sp. nov. 3 (2) Ocular setae absent; pronotum as long (or longer) than wide; male mediuncus absent ( Figs. 166 b–c)................... 4 - Ocular setae present (white); pronotum wider than long ( Fig. 169b ); male mediuncus present (but small) ( Fig. 170b )................................................................................................... R. striatus 4 (3) Forewing: dark mediocubital line continuing as a long dark streak across radial area; hind wing rhegmal area with a large brown spot ( Fig. 160c )....................................................................................... 5 - Forewing: dark mediocubital line not continuing as a long dark streak across radial area; hind wing rhegmal area without a large brown spot (only a small dark infuscation) ( Fig. 165c ).................................................. R. rudda 5 (4) Hind wing with apical spot as large as rhegmal spot ( Fig. 160c ); pronotum mostly pale, but with a dark sagittal stripe ( Fig. 160b ); profemur mostly pale; female posterior gonapophysis longer than wide ( Figs. 161 a–b)...... R. longitudinalis sp. nov. - Hind wing with apical spot much smaller than rhegmal spot ( Fig. 156c ); pronotum mostly dark ( Fig. 156b ); profemur entirely black; female posterior gonapophysis wider than long ( Fig. 157f )....................................... R. edwardsi 6 (1) Pterothorax and abdomen without scale-like setae........................................................... 7 - Pterothorax and abdomen with scale-like setae ( Fig. 167b ).................................... R. squamosus sp. nov. 7 (6) Tibial spurs present.................................................................................... 8 - Tibial spurs absent............................................................................. R. proctus 8 (7) Body dark (vertex, mesonotum and legs mostly brown) ( Fig. 158b ); pronotum setae mostly black and short; hind wing with rhegmal spot large ( Fig. 158c )................................................................... R. furcatus - Body pale (vertex, mesonotum and legs mostly pale) ( Fig. 151b ); pronotum setae mostly white and long; hind wing with rhegmal spot small ( Fig. 151c ).................................................................... R. convergens