Subspecies and Distribution. E. a. alecto Eydoux & P. Gervais, 1836 - Philippines (except Palawan), Talaud Is, Sulawesi, Togian Is, Banggai Is (Peleng), Raja Ampat Is (Gag), and the Moluccas (Sula, Seram, Ambon, Gorong, Tanimbar, and Kai Is). E. a. anambensis G. S. Miller, 1900 - restricted to Natuna Besar I. E. a. palawanensisE. H. Taylor, 1934 — Palawan and Balabac, Philippines. E. a. rivalis Thomas, 1915 - Borneo (including Anambas, Pelapis, and Karimata Is). in Emballonuridae

Subspecies and Distribution. E. a. alecto Eydoux & P. Gervais, 1836 - Philippines (except Palawan), Talaud Is, Sulawesi, Togian Is, Banggai Is (Peleng), Raja Ampat Is (Gag), and the Moluccas (Sula, Seram, Ambon, Gorong, Tanimbar, and Kai Is). E. a. anambensis G. S. Miller, 1900 - restricted to Natuna Besar I. E. a. palawanensisE. H. Taylor, 1934 — Palawan and Balabac, Philippines. E. a. rivalis Thomas, 1915 - Borneo (including Anambas, Pelapis, and Karimata Is).