White-bellied Mountain-gem

Here the details of the White-bellied Mountain-gem named bird below:

SCI Name:  Lampornis hemileucus
Protonym:  Oreopyra hemileuca Proc.Zool.Soc.London(1864) (1864), Pt3 p.584
Taxonomy:  Caprimulgiformes / Trochilidae / Lampornis
Taxonomy Code:  wbmgem1
Type Locality:  Turrialba and Tucurriquf, Costa Rica.
Author:  Salvin
Publish Year:  1865
IUCN Status:  Least Concern

DEFINITIONS

LAMPORNIS
(Trochilidae; † Amethyst-throated Hummingbird L. amethystinus) Gr. λαμπη lampē  torch, light; ορνις ornis, ορνιθος ornithos  bird; "G. LAMPORNIS.  Swainson in Zool. Journ. No. 10.   100. Lampornis amethystinus. Sw.   Green; chin and upper part of the throat amethystine; ears black, margined above with white; tail black.  Female?  Tableland.  Temiscaltipec.  Real del Monte." (Swainson 1827 (June)); "Lampornis Swainson, Philos. Mag. (n.s.), 1, June, 1827, p. 442.  Type, by monotypy, Lampornis amethystinus Swainson." (Peters, 1945, V, p. 80). 
Synon. Chariessa, Coeligena, Cyanolaemus, Delattria, Himelia, Leuconympha, Oreopyra, Prodosia.
• (Trochilidae; syn. Anthracothorax † Jamaican Mango A. mango) "LAMPORNIS.  Rostrum sub-arcuatum. Cauda brevis, æqualis.  Types. 1. T. mango, L.  2. pella, L.  3. niger. Sw., Zool. Ill.   Bill arched.  Tail short, even." (Swainson 1827); "Lampornis Swainson, 1827 (Dec.), Zoological Journal, III, p. 358.  Type, by subsequent designation (G. Gray, 1840, List Genera Birds, p. 13), L. mango (L.) Swains., i.e. Trochilus mango Linnaeus, 1758." (JAJ 2020).
• (Trochilidae; syn. Florisuga † White-necked Jacobin F. mellivora) "LES LAMPORNIS.  Lampornis, Swains.  ...  ESP. 20.  OISEAU-MOUCHE JACOBINE.  Ornismya mellivora, N. pl. XXI (mâle), et XXII (femelle)." (Lesson 1829) (twenty-seven further 'espèces' are listed); "Lampornis Lesson, 1829, Hist. Nat. Oiseaux-Mouches, p. xxiij.  Type, by subsequent designation (Elliot, 1879, Smithsonian Contrib. Knowledge, 317, Classif. Synop. Trochilidae, p. 47), Florisuga mellivora, i.e. Trochilus mellivorus Linnaeus, 1758." (JAJ 2020).
• (Trochilidae; syn. Topaza † Crimson Topaz T. pella) Reichenbach's 1850, plate XXXIX, labelled Trochilinae: Avocettulinae.Polytminae, includes the distinctive features and head-pattern of the Crimson Topaz; "Lampornis Reichenbach, 1850, Avium Systema Naturale, pl. XXXIX (no specific names given).  Type, by subsequent designation (G. Gray, 1855, Cat. Genera Subgenera Birds Brit. Mus., p. 21), Trochilus pella Linnaeus, 1758." (JAJ 2020).

hemileucus
Gr. ἡμιλευκος hēmileukos  half-white  < ἡμι- hēmi-  half  < ἡμισυς hēmisus  half; λευκος leukos   white.
● See: hemileucurus