Traverella, Edmunds, 1948

Nascimento, Stênio R. S., Lima, Lucas R. C., Mariano, Rodolfo & Azevêdo, Carlos A. S., 2020, New species and stages description of Traverella Edmunds, 1948 (Ephemeroptera Leptophlebiidae) from Northeast Brazil, Zootaxa 4861 (3), pp. 411-422 : 421

Key to male imagos of Traverella from Brazil

1. Styliger plate strongly projected posteriorly, hindering the vision of penes ( Nascimento & Salles 2013: fig. 14D).. T. insolita

- Styliger plate not strongly projected posteriorly............................................................. 2

2(1). Styliger plate without lateral projections ( Needham & Murphy 1924: pl. 11, fig, 142)....................... T. bradleyi

- Styliger plate with lateral broad paired projections........................................................... 3

3(2). Lateral projections of styliger plate sharpening toward at apex ( Figs 1D , 2D )................ Traverella excelsior sp. nov.

- Lateral projections of styliger plate with two fine, long spines dorsally recurved ( Nascimento et al. 2019: fig. 16A)................................................................................................ T. maranhensis

Figures

FIGURE 1. Traverella excelsior sp. nov. male imago; A) lateral view of imago; B) head (dorsal view); C) thorax and abdomen (dorsal view); D) genitalia (ventral view); E) abdominal segments VII–X (lateral view). Scale bars in mm: A = 2; B, E = 0,5; C = 1; D = 0,2.

FIGURE 2. Traverella excelsior sp. nov. male imago; (A–B) Wings:A) forewing; B) hind wing; C) enlarged hind wing; (D–E) Genitalia: D) ventral view; E) detail of penes, ventral view. Scale bars in mm: A = 2; B = 0,5; D–E = 0,2.