Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela Author DeMarmels, Jurg text Acta Biologica Venezuelica 1992 14 1 57 78 journal article 26316 10.5281/zenodo.3266063 39c9ce8d-d95d-467e-9590-ab184d952201 3266063 Hetaerina caja dominula Selys, 1853 Material (3 ♂ 1 ♀). - 1 ♂ , Rio Mavaca, S of Base Camp ; 1 ♂ , 1 ♀ , Siapa 2 . Remarks.- As usual, this species was found along broader water courses. While moderately common along a 10 m broad river in the forest, it was exceedingly numerous on the Mavaca and. Siapa rivers, wich might be up to 50 m wide. H . c. dominula was absent from smaller creeks in the forest where it was replaced by the following two species.