On iNaturalist, a specimen of V. brunneipennis from Peru was found and permico looked through the literature:
https://www.inaturalist.org/observations...65-6f2e845f2c47

Only V. brunneipennis is reported for Peru in literature, but in the Bavarian State Collection of Zoology in München, Germany, there are specimens from Huanuco in Central Peru, determined by Danilo Matzke as Vostox cebrarea:
https://data.zsm.mwn.de/drawers/InVa/Der...nVa-D1112-2005/

The picture is with zoom still a bit blurry, but for me their forceps and pygidium looks different from the drawing in Steinmann (1990). Steinmann mentions V. cebrarea only for Cuba.

Steinmann (1990) key both species out as following:
5 Pronotum wider than long. Median third of male forceps with an obtuse tooth. Pygidium slightly varying, but postero-lateral angles right-angled, External parameres of male genitalia very narrow, apex acuminate (Fig. 576) ....................... 3. Vostox brunneipennis, p. 316
5' Pronotum quadratic, as long as wide. Male pygidium about as wide as long, middle of posterior margin with a considerably prolonged section, apically transversally truncate (Fig. 578). Forceps slightly sinuous, not of the Vostox-type ...................... Vostox cebrarea, p. 318

The shape of the pronotum can sometimes be variable (like in Metisolabis punctata and fulgens, where Srivastava (2003) synonymized both species and says the differences are within the variational range), the pronotum of the museum specimens can't be clearly seen by zoom.