Epipleoneura tariana Machado, 1985

Pessacq, Pablo, 2014, Synopsis of Epipleoneura (Zygoptera, Coenagrionidae, “ Protoneuridae ”), with emphasis on its Brazilian species, Zootaxa 3872 (3), pp. 201-234 : 229

Epipleoneura tariana Machado, 1985

( Figs. 10 , 38 )

Epipleoneura tariana Machado 1985: 698 –700, figs. 4–7 (new species, male description, illustrations of S 10 in dorsal, posterior and lateral view, detail of apex of cercus, type material at ABMM). De Marmels 1989: 22 (new record for Venezuela). Lencioni 2005: 182, figs. 112 a–c (references, type locality, distribution, described stages, illustrations of male S 10 in lateral, dorsal and posterior view). Garrison et al. 2010: 352, 355, fig. 2353 (included in list of species, illustrations of epiproct in posterior view). Pessacq et al. 2012: 5 (included in list of Brazilian Protoneuridae ).

Specimens examined. 2♂. Holotype 1♂, Brazil, Amazonas State, Taracuá, “do outro lado do rio” (02º53’34”S, 69º44’29”W), leg. A.B.M. Machado & P. Pereira, 15 viii 1964. Paratype ♂, same data as holotype. ABMM.

Diagnosis. The male cercus has some similarities to that of E. capilliformis and related species, but it is also distinctive of this species, the dorsal branch parallel to main body axis and without apical hook but with a strong spine directed postero-ventrally and a well developed inner-basal branch with its apex directed dorsally and reaching midline of S10 medially. Cercus and epiproct morphology is very similar to that of E. lamina , but in that species the cercus dorsal branch is directed dorsally and has an apical hook, and the epiproct has a comparatively narrow apex and more pronounced apical lobes, while in E. tariana the epiproct is approximately quadrangular and the lobes are shorter. Genital ligula are different in both species, and in E. tariana ( Fig. 38 ) it resembles that of E. humeralis , E. janirae , and E. waiwaiana , and it is described under the first species. Female unknown.

Distribution. Northern Brazil in the State of Amazonas, Taracuá (about 00º07’S, 68º32’W). Southern Venezuela, Rio Baría, Amazonas State. Tarapacuá, is actually in Colombia, 3 km from the border with Brazil, but as label information states “do outro lado do rio” (at the other bank of the river) it is not possible to know in which country the specimen was collected.

Notes. Unfortunately the cerci of Epipleoneura tariana are lost in the type material.

Figures

FIGURES 10 – 12. Male caudal appendages, a: lateral view; b: posterior view, c: latero-posterior view. Figure 10 modified from Machado (1985).

FIGURES 28 – 47. Genital ligula, lateral and ectal view. Figures 29, 33, 47 modified from Garrison et al. (2010). PLP: posterolateral projection.