Heteragrion mitratum mitratum Williamson, 1919 Material Examined. COLOMBIA, Department of Antioquia, Maceo Municipality, 6.54411°N 74.64022°W 490m a.s.l.., 3♂♂, 22 January 2001, Leg: S. Pérez and A. Vélez. Same data but: Puerto Berrio, Estación La Cristalina, Hacienda La Guajira, 6.37009°N 74.57529°W 300m a.s.l. 2♂♂ and 1♀, 4–6 September 2008, Leg: C. Bota. 1♂, San Roque Municipality, San Jose del Nus Township, 6.48750°N 74.83428°W 800m a.s.l., 7 February 2009, Leg: C. Bota. 1♂ and 1♀, El Topacio Township, 6.46947°N 74.90199°W 950m a.s.l., 23 July 2013, Leg: J. Cogollo and Yenny Correa. 1♂, Nariño Municipality, Puente Linda Township, 5.58411°N 75.12861°W 750m a.s.l., 26 July 2009, Leg: C. Bota. 4♂♂ and 1 ♀, Remedios Municipality, La Cruz Township, 6.90888°N 74.56722°W 523m a.s.l., 23 December 2009, Leg: L. Campuzano and C. Bota. 4♂♂, San Luis Municipality, La Garrucha Township, 6.00407°N 74.93902°W 397m a.s.l., 22–26 August 2011, Leg. C. Bota. 3♂♂ and 1♀, San Carlos Municipality, Samana Township, 6.15000°N 74.80000°W 600m a.s.l., 27 March 2012. Leg. C. Flórez and C. Bota. 4♂♂, El Carmen de Viboral Municipality, El Porvenir Township, 5.89698°N 75.17958°W 950m a.s.l., 29 November 2016, Leg: C. Bota. 1♀, Caldas Department, Victoria Municipality, 5.446774°N 74.91890°W 610m a.s.l., 22 February 2010, Leg: C. Bota. VENEZUELA, 1♂, Táchira State, San Felix, 350m a.s.l., 12 April 1996, Leg: Jürg DeMarmels. Remarks. This subspecies is recorded from Colombia and Venezuela. It inhabits lowland streams with waterfalls inside forest (between 0 and 450m. a.s.l.) along the Magdalena River Valley and extends northwest to the foothills of the Cordillera de Merida in Táchira and Trujillo States (De Marmels 2008). We found some variation on abdominal coloration with dorsum of S9 brown to black (Fig. 7b). It is sympatric with H. aequatoriale and H. erythrogastrum in different localities (see information above in the biology section of these species). New localities are recorded at Antioquia and Caldas Departments (Fig. 2).

Published as part of Bota-Sierra, Cornelio Andrés & Novelo-Gutiérrez, Rodolfo, 2017, The genus Heteragrion (Odonata: Zygoptera) in Northwestern Colombia, with the description of Heteragrion tatama sp. nov., pp. 553-571 in Zootaxa 4347 (3) on pages 564-567, DOI: 10.11646/zootaxa.4347.3.8, http://zenodo.org/record/1048659