Heteragrion erythrogastrum Selys, 1886

(Figs. 5 E–F, 9D–F, 14A–C, 18)

Material examined: UARC: 21 ♂♂, 2 ♀♀ 24 July 2010 Chocó Department, Unión Panamericana Municipality, Corregimiento Salero 6.6108, -74.5771 100m a.s.l. , Leg: L. Pérez and J. Montes . 2 ♂♂ 10 December 2005, Acandí Municipality, Vereda Rufino, Quebrada Capitancito 8.5787, -77.3108 30m a.s.l. , Leg: C. Botero , 1 ♂ Tutunendo Municipality, Quebrada El Diablo 5.7513, -76.5331 71m a.s.l, Leg: L. Pérez. CEUA: 1 ♂, 5 January 2011 Boyacá Department, Puerto Boyacá Municipality, Vereda Patio Bonito, Leg: J. Cardona , 1 ♂ Valle del Cauca Department, Buenaventura Municipality, Uramba Bahía Málaga National Park, Leg: C. Bota . ANDES–E: 10 ♂♂ 24 July 2010 Chocó Department, Union Panamericana Municipality, Corregimiento Salero 6.6108, -74.5771 100m a.s.l. , Leg: L. Pérez and J. Montes . 32 ♂♂, 3 ♀♀ 10 December 2005 Acandí Municipality, Vereda Rufino, Quebrada Capitancito 8.5787, -77.3109 30m a.s.l. , 35 ♂♂, 5 ♀♀ Quebrada Charanga 8.5906, 77.3158 27m a.s.l. , 4 ♂♂ Quebrada Boca- toma 8.5874, -77.3108 50m a.s.l. , 7 ♂♂ Quebrada Tomas 8.5691, -77.3232 34m a.s.l. , 1 ♂ Quibdó Municipality, Quebrada Chaparraidó COO., MPUJ _ENT : 4 ♂♂, 2 ♀♀ Chocó Department, Acandí Municipality .

Remarks: This species is easy to differentiate from all other Heteragrion species in Colombia by its completely black head (Fig. 5E), red abdomen in males, female intersternite with a rounded dorsal plate (Fig. 14C), and genital valves not reaching distal border of S10 (Fig. 14A). We report it here for the first time from Boyacá and Valle del Cauca Departments.