A new genus of predatory katydids (Orthoptera: Tettigoniidae: Listroscelidinae) from the Amazonian Rainforest Author Mendes, Diego Matheus De Mello Author Chamorro-Rengifo, Juliana Author Rafael, José Albertino text Zootaxa 2016 4162 3 594 600 journal article 10.11646/zootaxa.4162.3.12 8faf081f-4deb-450b-8ce9-c55a50ab8399 1175-5326 265410 E319233F-929C-4C9E-A513-FAACB0C9D40C Venatorellus viridipedes Mendes, Chamorro-Rengifo and Rafael sp. nov. ( Figs. 1–4 ) Etymology. The specific epithet refers to the coloration of the middle- and hind femora, which are greenish. Holotype male : BRASIL , Amazonas , Manaus, Reserva Adolfo Ducke, ix.2005 , (L. Pierrot leg. ) Allotype female: BRASIL , Amazonas , Manaus, Reserva Adolfo Ducke, v.2010 , coleta manual, (D.M.M. Mendes leg. ) FIGURE 3. Terminalia and internal genitalia of Venatorellus viridipedes sp. nov. . (A) male cerci in dorsal view, (B) male subgenital plate in ventral view, (C) female subgenital plate in ventral view, (D) phallus in dorsal view, (E) phallus in ventral view. Abbreviations: TS: titillator sclerite; Lw.vl.: lower folds of ventral lobe; Up. vl.: upper folds of ventral lobe. Diagnostic description. General characteristics as described above. Male. Tegmina as shown in Fig. 2 A; left stridulatory file with 96 teeth and right with 92 teeth ( Figs. 2 C and 2D). Subgenital plate slightly emarginated, styli as long as the plate ( Fig. 3 B). Phallus as shown in Figs. 3 D and 3E. Female. Subgenital plate as shown in Fig. 3 C. Ovipositor as long as the thorax plus the abdomen ( Fig. 1 D). Coloration. Body mostly dark brownish ( Figs. 1 A, 1B, 1D and 1E); face blackish ( Figs. 1 C and 1F); some body parts are greenish: membrane of the antennal sockets, thoracic spiracles, and middle- and hind femora ( Figs. 1 D, 1E and 4A). Alive immature are light greenish, with a yellowish spot at the end at the midline of the pronotum ( Fig. 4 B). Just after the last molt, the newly developed tegmina and alae are whitish. This coloration pattern remains for few minutes while the insect cuticle dry ( Fig. 4 C). Measurements. Holotype : WF: 7,7 mm ; TL: 23,6 mm ; TegL: 24,7 mm ; PL: 7,3 mm ; FF: 17,7 mm ; LF: 22,5 mm ; MF: 13,6 mm ; MT: 14,5 mm ; LH: 28 mm ; LT: 31,1 mm ; Lsp: 4,1 mm ; LC: 3,4 mm . Allotype : WF: 5,7 mm ; TL: 28,9 mm ; TegL: 24,8 mm ; PL: 6,5 mm ; FF: 13,7 mm ; LF: 15,8 mm ; MF: 11,1 mm ; MT: 13,4 mm ; LH: 23,2 mm ; LT: 25,3 mm ; Lsp: 3 mm ; LC: 3,5 mm ; OL: 22,4 mm . Paratypes (n = 15): WF: male 5,1–7 mm / female 5–5,7 mm ; TL: male 24,6–32,1 mm / female 28,8–29,94 mm ; TegL: male 21,6–26 mm / female 24,8–28,7 mm ; PL: male 5,9–6,9 mm / female 6,5–6,8 mm ; FF: male 15,6–16,2 mm / female 13,8–14,9 mm ; LF: male 16–20,3 mm / female 17,5–19,7 mm ; MF: male 9,6–13,1 mm / female 11,2–12,6 mm ; MT: male 12,5–16,5 mm / female 15,6– 14,2 mm ; LH: male 22,7–27,6 mm / female 24,2–27,5 mm ; LT: male 23,8–30,2 mm / female 27,6–30,6 mm ; Lsp: male 3,8–4 mm / female 2,8–3,5 mm ; LC: male 2,7–3 mm / female 2,8–3,3 mm ; OL: 25,7– 22,6 mm . FIGURE 4. Live individuals of Venatorellus viridipedes sp. nov. . (A) adult female, (B) immature male, (C) male soon after molting into adult,(D) adult male being preyed by Tytius metuendus on tree trunk. Additional type series. Paratypes: 9♂ and 6♀– BRASIL , Amazonas , Manaus , Reserva Adolfo Ducke , 17.iv– 04.v.2007 , armadilha suspensa sub-bosque, platô, Norte-Sul , ( G. Freitas ; R.A. Silva leg. )( 1♂ ) ; idem , 27.ix– 09.x.2006 , armadilha malaise, platô, Norte-Sul, (J. Vidal, J. Ale-Rocha, G. Freitas leg .)(1♀); idem , armadilha suspensa dossel, Norte-Sul , ( J. Vidal , J. Ale-Rocha , G. Freitas leg .)( 1♂ ) ; idem , 31.ix.1975 , (E. Rappa leg. )(1♀); idem , 01.v.2015 , coleta manual, (D.M.M. Mendes leg .)(1♂); idem , ZF-03, BR-174, km 41, Res. 1501, 10 - 25.x.1995 , (Rocha e Silva, L.E.F. leg. )[02°27’26”S / 59°45’00”W](1♂ e 1♀); idem , Reserva km 41, PDBFF , 16– 18.iii.2005 , armadilha suspensa / sub-bosque ( R. Queiroz , S. Costa , A. Nagarima , L. Queiroz , M. Feitosa , S. Deus leg. )( 1♂ e 1♀ ) ; idem , Campus Universitário da Universidade Federal do Amazonas—UFAM, 01.v.2015 , coleta manual, ( D.M.M. Mendes leg .)( 1♂ ) ; idem , INPA, EEST, BR-174, km 43, SI, 09.iv.2002 , coleta manual, (M.I.P. Creão leg. )(1♂); idem , Presidente Figueiredo , AM-240, km 24, Ramal São Francisco , 01.viii.2013 , coleta manual, ( F.F. Xavier F°, A. Agudelo , C. Maldaner & D.M.M. Mendes leg. )[ 02°00’55”S / 59°49’40”W ]( 1♂ ) ; idem , Coari , Base Petrobrás Urucu , Clareira 0 5, Acampamento Araracanga , 16–17.viii.2013 , ( G.L.S. Monte leg. ) ( 1♂ e 1♀ ) ; idem , Novo Aripuanã , Res. Sokagakkay, clareira / mata, 7–8.xii.1999 , luz mista, ( M.F. Vieira & F. Gouveia leg. )[ 05°15’57”S / 60°06’32W]( 1♀ ) . Comments. All specimens were collected at night in “terra firme” dense ombrophilous forest. Most of them were captured with suspended traps between 35 to 40 m at the canopy. Some specimens were captured manually on trees between 1.50 to 2.0 m height. Some specimens were observed feeding on several kinds of insects, such as crickets, grasshoppers and some larvae of unknown taxonomic group. One male adult was photographed being preyed by a Tytius metuendus Pocock, 1893 scorpion ( Fig. 4 D).