Venatorellus viridipedes Mendes, Chamorro-Rengifo and Rafael

Mendes, Diego Matheus De Mello, Chamorro-Rengifo, Juliana & Rafael, José Albertino, 2016, A new genus of predatory katydids (Orthoptera: Tettigoniidae: Listroscelidinae) from the Amazonian Rainforest, Zootaxa 4162 (3), pp. 594-600: 597-600

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Venatorellus viridipedes Mendes, Chamorro-Rengifo and Rafael

sp. nov.

Venatorellus viridipedes Mendes, Chamorro-Rengifo and Rafael   sp. nov.

( Figs. 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 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.)

Diagnostic description. General characteristics as described above. Male. Tegmina as shown in Fig. 2 View FIGURE 2 A; left stridulatory file with 96 teeth and right with 92 teeth ( Figs. 2 View FIGURE 2 C and 2D). Subgenital plate slightly emarginated, styli as long as the plate ( Fig. 3 View FIGURE 3 B). Phallus as shown in Figs. 3 View FIGURE 3 D and 3E. Female. Subgenital plate as shown in Fig. 3 View FIGURE 3 C. Ovipositor as long as the thorax plus the abdomen ( Fig. 1 View FIGURE 1 D).

Coloration. Body mostly dark brownish ( Figs. 1 View FIGURE 1 A, 1B, 1D and 1E); face blackish ( Figs. 1 View FIGURE 1 C and 1F); some body parts are greenish: membrane of the antennal sockets, thoracic spiracles, and middle- and hind femora ( Figs. 1 View FIGURE 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 View FIGURE 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 View FIGURE 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.

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♂) GoogleMaps   ; 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 View FIGURE 4 D).