Epipleoneura westfalli Machado, 1986

(Figs. 16, 43, 58)

Epipleoneura westfalli Machado 1986: 113 –118, figs. 1–3 (new species, description of male and female, illustration of male S 10 in lateral and posterior view, female prothorax in dorsal view, type material at ABMM). Lencioni 2005: 185, figs. 115 a–c (references, type locality, distribution, described stages, reproduction of illustrations of male S 10 in lateral and posterior view and female prothorax in dorsal view). Garrison et al. 2010: 352, 354, fig. 2338 (included in list of species, illustrations of epiproct in posterior view). Pessacq et al. 2012: 5 (included in list of Brazilian Protoneuridae, new record for Maranhão State).

Specimens examined. 2 ♂, 1 ♀, Brazil, Maranhão State, route São Luiz-Teresina (Teresina: 05º05’31”S, 42º48’12”W), km 340, 29 vii 1972.

Diagnosis. The cercus, epiproct, and genital ligula of this species are similar to those of E. kaxuriana, E. machadoi and E. ottoi; for descriptions and further comments see under those species. The epiproct is strikingly similar to the atypical epiproct of a few specimens of E. machadoi from Baixo Guandu River (Fig. 67 e), from which it can be distinguished by the smaller inner-basal teeth in E. westfalli, developed as a big triangular teeth or lobe in E. machadoi . The epiproct with divergent and curved branches characteristic of this species is also present in E. humeralis, but the genital ligula of these species is clearly different. The female posterior margin of pronotum (Fig. 58) has an erect flat structure with a rounded lobe on each side and a deep U cleft between them, which further differentiates it from E. kaxuriana, E. machadoi, and E. ottoi, but is similar to the bilobed margin of pronotum of E. humeralis .

Distribution. Northern Brazil in Maranhão and Rondônia States (type locality, Ji Paraná, Rondônia State, about 10°52'51"S 61°56'31"W).

Notes. Some variation was observed in the epiproct of this species; as mentioned by Machado (1986), the branches are divergent and with apex acute or slightly divergent with stout apex.