Phthiracarus pygmaeus Balogh, 1958

Distribution: Pantropical.

Records in Ecuador: Galápagos (Isla Seymour Norte), Cotopaxi ( Reserve of Bosque Integral Otonga, near San Francisco de las Pampas), Pastaza (13 km N from Shell, private reserve Fundación de la Amazonia, near the border with Llanganates Park) and Zamora Chinchipe ( San Francisco Biological Reserve) .

Habitat: Arid zone in the interior of the island, under Bursera malacophylla and Cryptocarpus pyriformis; dry sandy litter and humus. Sifted litter. Primary forest, leaf litter. Leaf litter and forest soil.

References: Niedbała & Schatz (1996): 262; Schatz (1998): 380; Illig et al. (2007): 226; Niedbała & Ermilov (2014): 255; Niedbała & Roszkowska (2016): 11.