Epipleoneura ocuene De Marmels, 1989

Pessacq, Pablo, 2014, Synopsis of Epipleoneura (Zygoptera, Coenagrionidae, “ Protoneuridae ”), with emphasis on its Brazilian species, Zootaxa 3872 (3), pp. 201-234 : 225

Epipleoneura ocuene De Marmels, 1989

( Figs. 8 , 48 )

Epipleoneura ocuene De Marmels, 1989: 20 –21, 62, figs. 54–58 (new species, description of male, illustration of male S 10 in lateral and posterior view, genital ligula in ectal and lateral view, synthorax in lateral view, type material at MIZA). Garrison et al. 2010: 352, 355, fig. 2349 (included in list of species, illustrations of epiproct in posterior view).

Diagnosis. The cercus ( Fig. 8 ) of this species is similar to that described for E. capilliformis and several other species, but some details are different and unique for this species: the dorsal branch is directed dorsally, there is no inner-basal branch or tooth, and the ventral branch is unusually small. The epiproct ( Fig. 8 b) is bifurcated, the two short branches separated at their bases, parallel (original description) or slightly convergent ( Garrison et al. 2010). Segment 3 of genital ligula ( Fig. 48 ) is slightly narrowed medially, with sides slightly elevated and apex with a shallow, wide cleft and with lateral corners acute, directed laterally; postero-lateral projections are directed lateroposteriorly, each with a conspicuous peduncle and apex semi-triangular, and with a small and narrow semitriangular lobe basal to postero-lateral projection. The male of E. ocuene shares with E. pereirai Machado, 1964 , the apex of the genital ligula with an acute lobe on each side pointing laterally but can be clearly separated from it and remaining species by the cercus dorsal branch directed dorsally, the absence of inner-basal structure, and the epiproct configuration. Female unknown.

Distribution. Southern Venezuela, Amazonas State (type locality, Amazonas State, departamento Río Negro, Canal Ocuene , Río Baría, about 1º20’N, 66º28’W).

Figures

FIGURES 7 – 9. Male caudal appendages, a: lateral view; b: posterior view, c: latero-posterior view. Figure 8 modified from De Marmels (1989).

FIGURES 48 – 52. Genital ligula, a: lateral view; b: ectal view. Figures 48 and 51 modified from De Marmels (1989).