Oreiallagma von Ellenrieder & Garrison, 2008

Two of the five known species occur in Ecuador. Adults are mainly blue and black, of medium size with an elongate abdomen (Fig. 26); young adults are reddish brown. The latest taxonomic treatment was by von Ellenrieder & Garri- son (2008a). Little is known about the habitat, but at least one species was found to breed in water-filled bromeliads, at relatively high elevations.

Oreiallagma oreas (Ris, 1918) . Publ. Recs. ECU: *(H14). Also COL (H08), (P16).

Addl. Data. PC, San Miguel Bancos: Reserva Gralarias, 7 km NE of Mindo, open area under powerline (-0.011, -78.731, 2040m), no date provided, data provided by WAH & DLW; 2 ♂♂, 1 ♀, Mindo (1524m), 15 v 2011, data provided by ACRP [ACRP, RWG].

Oreiallagma prothoracium (Kimmins, 1945) . Publ. Recs. ECU: Kimmins (1970), Paulson (1983), Davies & Tobin (1984), Tsuda (1986, 1991), all as Leptagrion prothoracium, Steinmann (1997a—as Teleagrion prothoracicum) (P11), (H14); IM: * Kimmins (1945 —as T. prothoracicum, Holotype & Paratype: “Intag”, [Apuela, NE on Apuela- Cuicocha Road, along Río Intag and tributaries between 1800–2800m (0.358817, -78.450904) at jct of Río Intag and tributary], examined by RWG [BMNH]), Bridges (1993), von Ellenrieder & Garrison (2008a — assigned to Oreiallagma).

Addl. Data. A specimen which was examined by both RWG and KJT could be this species: NA, Quijos: 1 ♀, stream 5 km S of Baeza (-0.4767, -77.8700, 1900m), 20 xi 1997, leg. KJT [KJT]