Black-hooded Sunbeam Aglaeactis pamela

  • Order: Caprimulgiformes
  • Family: Trochilidae
  • Monotypic
  • Authors: Thomas S. Schulenberg and Carolyn W. Sedgwick


Geographic Variation

Aglaeactis pamela is monotypic.

Related Species

Described as Ornismya Pamela d'Orbigny 1838; type locality Yungas, Bolivia

The genus Aglaeactis was proposed by Gould 1848, with Trochilus cupripennis Bourcier 1843 as the type species.

Phylogenetic analysis of DNA sequence data, from both mitochondrial and nuclear genes, reveals that hummingbirds (Trochilidae) constitute nine major clades, comprising the hermits, mangos, Patagona, topazes, coquettes, brilliants, mountain-gems, bees, and emeralds (McGuire et al. 2007, 2009, 2014). Aglaeactis belongs to the clade of brilliants, which is predominated by Andean genera; other members of the brilliants clade are Haplophaedia, Eriocnemis, Loddigesia, Lafresnaya, Pterophanes, Ensifera, Boissonneaua, Urosticte, Ocreatus, Urochroa, Heliodoxa, Clytolaema, Heliodoxa, and Coeligena (McGuire et al. 2007, 2009, 2014). The genus Aglaeactis is sister to Lafresnaya (McGuire et al. 2014). Aglaeactis aliciae (Purple-backed Sunbeam) has not been included in these genetic analyses; with that caveat, Aglaeactis pamela appears to be sister to Aglaeactis castelnaudii (White-tufted Sunbeam) of southern Peru (McGuire et al. 2014).

Recommended Citation

Schulenberg, T. S. and C. W. Sedgwick (2012). Black-hooded Sunbeam (Aglaeactis pamela), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.