Deciphering the diversity and history of New World nightjars (Aves: Caprimulgidae) using molecular phylogenetics Author Sigurðsson, Snorri Author Cracraft, Joel text Zoological Journal of the Linnean Society 2014 2014-03-12 170 3 506 545 http://dx.doi.org/10.1111/zoj.12109 journal article 10.1111/zoj.12109 0024-4082 5346424 NYCTIPROGNE LATIFASCIA FRIEDMANN, 1945 Definition Previously Nyctiprogne leucopyga latifascia . It is elevated to full species status and is the sister species of a clade that contains N. leucopyga and N. vielliardi . Diagnosis Similar to N. leucopyga and N. vielliardi , but noticeably larger and with much darker, more blackish plumage. There is evidence for distinct vocalizations ( Friedmann, 1945 ; Naka, 2012 ). There is over 8% divergence in ND2 sequences and 7% divergence in CYTB between N. latifascia and N. leucopyga , as well as 0.7% divergence in the ACO1 I9 sequences. Comments Genetic evidence in this study shows that N. leucopyga is non-monophyletic because some subspecies are more closely related to N. vielliardi than to N. leucopyga latifascia ( Fig. 6 ). This, along with morphological characters and observations on the vocalizations, supports recognizing two phylogenetic species: N. latifascia and N. leucopyga ( Fig 8 ).