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 10.5281/zenodo.3266063 39c9ce8d-d95d-467e-9590-ab184d952201 3266063 Microstigma rotundatum Selys. 1860 Material. 2♂ , Base Camp . Remarks. One of the males was holding a te­ rritory in a small clearing. It consisted of a re­ cently fallen tree with a twirled stem, which held about twenty phytotelmata with varying water content over almost its whole length. Some leaf detritus and mosquito larvae were observed in some of these water bodies, but no larvae of Microstigma Rambur or of any other Zygoptera was detected (but see below under Triacanthagyna dentata and Libellula herculea ).