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These two species were formerly placed in the genus Leucippus.A molecular phylogenetic study published in 2014 found that Leucippus was polyphyletic. [1] To resolve the polyphyly these two species were moved to the resurrected genus Thaumasius that had been introduced by Philip Sclater in 1879 with the spot-throated hummingbird as the type species.
Male green-crowned brilliants are 12 to 13 cm (4.7 to 5.1 in) long and females 10.5 to 12 g (0.37 to 0.42 oz). One female weighed 7.4 g (0.26 oz). Both sexes of all subspecies have a white spot behind the eye and a forked tail, though that of the female is not as deeply indented as the male's. [6]
The blue-bearded helmetcrest was formerly considered to be a subspecies of what was known as the bearded helmetcrest (Oxypogon guerinii).The blue-bearded helmetcrest was promoted to species status when the bearded helmetcrest was split into four species based on a study of biometric and plumage data published in 2013.
[3] [4] [5] However, a molecular phylogenetic study of the hummingbirds published in 2014 found that the marvelous spatuletail was embedded in genus Eriocnemis, the "pufflegs". [6] Moving it to Eriocnemis would require that the colorful puffleg (currently E. mirabilis) receive a new specific epithet because the spatuletail's mirabilis has ...
The spot-throated hummingbird is 11.5 to 12.5 cm (4.5 to 4.9 in) long and weighs about 6 to 7 g (0.21 to 0.25 oz). The sexes are essentially alike. They have a somewhat decurved black bill, though sometimes the mandible is gray-brown or even yellow with a black tip.
Macroglossum pyrrhosticta, the maile pilau hornworm or burnt-spot hummingbird hawkmoth, is a hawk moth of the family Sphingidae. The species was first described by Arthur Gardiner Butler in 1875. Distribution
Male Hispaniolan emeralds are 9.5 to 10.5 cm (3.7 to 4.1 in) long and females 8.5 to 9.5 cm (3.3 to 3.7 in). The species weighs between 2.5 and 5 g (0.088 and 0.18 oz). Both sexes have a small white spot behind the eye. Males have a bill whose mandible is red and the maxilla black, and that is slightly decurved at the outer end.
The Napo sabrewing is about 13.5 cm (5.3 in) long. Males weigh 7.4 to 9.3 g (0.26 to 0.33 oz) and females 5.2 to 7.4 g (0.18 to 0.26 oz). Both sexes have an almost straight black bill and a white spot behind the eye. The male's crown is glittering golden green and the rest of its upperparts bronzy green.