Nephochaetopteryx, Townsend, 1934

De-Souza, Caroline Costa, Souza, Matheus Tavares De & Carvalho-Filho, Fernando Da Silva, 2022, A new species of Nephochaetopteryx Townsend (Diptera: Sarcophagidae) from the Brazilian Amazon mangrove forest, Zootaxa 5104 (2), pp. 283-290 : 288-289

Key to the identification of males of Nephochaetopteryx

The new species runs to couplet 29 of the key by Carvalho-Filho et al. (2021), and can be identified based on the following added couplet (29a):

29. Cercal prongs not separated in dorsal view ( Carvalho-Filho et al. 2021: fig. 33B). Sternite 5 with lobe very short and rectangular, and without a cleft ( Carvalho-Filho et al. 2021: fig. 33E)...... N. tembe Carvalho-Filho, Esposito & Mello-Patiu, 2021

- Cercal prongs widely separated in dorsal view ( Fig. 3B ; Carvalho-Filho et al. 2021: figs 26B, 28B). Sternite 5 without lobe ( Fig. 3C ) or with lobe well developed and not rectangular, and with a broad cleft ( Carvalho-Filho et al. 2021: fig. 26E)...................................................................................................... 29a

29a. Cercus with short and widened cercal prong ( Figs 2A , 3B ), bearing two prominent projections ( Figs 2A , 3B ).................................................................................................... N. aryi sp. nov.

- Cercus with a thin and elongate cercal prong ( Carvalho-Filho et al. 2021: figs 26B, 28B), without projections ( Carvalho-Filho et al. 2021: figs 26A–B, 28A–B)........................................................................ 30

Figures

FIGURE 2. Nephochaetopteryx aryi sp. nov., male. A. Habitus of paratype (MPEG, collected 16–18.I.2021), lateral view. B. Terminalia of paratype (MPEG, collected 16–18.XII.2015), posterior view. C. Same, left lateral view. Abbreviations: ce = cercus; ep = epandrium; jx = juxta; pce = projections of cercus; pg = pregonite; pt = postgonite; ve = vesica. Scale bars: A = 0.7 mm; B–C = 0.5 mm.

FIGURE 3. Nephochaetopteryx aryi sp. nov., holotype male (MPEG), terminalia. A. Epandrium, surstylus and cercus, left lateral view. B. Cerci, posterior view (setation omitted on left side). C. Sternite 5, ventral view (setation omitted on left side). D. Gonites, left lateral view. E. Phallus, left lateral view. Abbreviations: bp = basiphallus; ce = cercus; dp = distiphallus; ep = epandrium; ip = inner process of vesica; jx = juxta; ls = lateral stylus; ms = median stylus; pce = projections of cercus; pg = pregonite; pt = postgonite; su = surstylus; ve = vesica. Scale bars: A–C = 0.5 mm; D–E = 0.25 mm.