A brief look at the Odonata from the Páramo ecosystems in Colombia, with the descriptions of Oxyallagma colombianum sp. nov. and Rhionaeschna caligo sp. nov. (Odonata: Coenagrionidae, Aeshnidae, Libellulidae) Author Bota, Cornelio Andrés text Zootaxa 2014 3856 2 192 210 journal article 10.11646/zootaxa.3856.2.2 24c01b66-c0d2-458b-a7fe-0e3de779a8e8 1175-5326 250932 ABC0E7D7-2E22-4605-A97B-0F1E632F3930 Erythrodiplax sp. connata group Figs. 3 c (Habitus mature ♂), 3d (Habitus juvenile ♂), Table 1 (coordinates). Material from páramo : Páramo El Morro: 1 ♂ , 6.x.2011 , Leg: C. Bota & J. D. Castaño. Páramo El Congo : 2 ♀ and 3 ♂ , 10 – 14.ix.2011 , Leg: L. Ríos & J. Zapata. Remarks. This highland dragonfly ( Figs. 2 c, d) is very difficult to diagnose and it will be necessary to compare with the type series of Erythrodiplax cauca Borror, 1942 and Erythrodiplax abjecta (Rambur, 1842) since the traits used by Borror (1942) to diagnose males of these species are very subtle; females match with E. abjecta following Borror´s key but females of E. cauca are unknown. These species need to be revised. Distribution. This species had been found from 1,600 m to 3,270 m in almost every lentic ecosystem in the three Colombian Andean Ranges (Occidental, Central, and Oriental), never the less it is recorded only in one páramo ecosystem. E. cauca is a Colombian endemic, E. abjecta is reported from Chiapas ( Mexico ) south to the northern Andes of Colombia , Ecuador , and Venezuela ( Paulson 2003 ).