Hummingbirds belong to the large family Trochillidae of Typical Hummingbirds and subfamilies Trochininae (typical hummingbirds) and Phaethornithinae (hermits). Because of the large number of hummingbird species I cannot list them all but all the genera are listed. Those species with photos (and some others) are listed and highlighted in red.
In the United States I am used to Hummingbirds being called Hummingbirds. But in Costa Rica and many other Neotropical countries, they go by many other name as well - Coquettes, Plumeleteers, Hermits, Emeralds, Gems, Mangos, Sabrewing, Snowcap, Woodnymphs, and others.
subfamily Trochininae
Genus Abeillia – Emerald-chinned Hummingbird
Genus Adelomyia – Speckled Hummingbird
Genus Aglaeactis – sunbeams (4 species)
Genus Aglaiocercus – sylphs (3 species)
Genus Agyrtria – Agyrtria emeralds (9 species)
Genus Amazilia (6 species)
Berylline Hummingbird Amazilia beryline
Rufous-tailed Hummingbird Amazilia tzacatl
Genus Androdon – Tooth-billed Hummingbird
Genus Anthocephala – Blossomcrown
Genus Anthracothorax – mangos (7 species)
Green-breasted Mango Anthracothorax prevostii
Veraguan Mango Anthracothorax veraguensis
Genus Archilochus (2 species)
Ruby-throated Hummingbird, Archilochus colubris
Black-chinned Hummingbird, Archilochus alexandri
Genus Atthis (2 species)
Genus Augastes – visorbearers (2 species)
Genus Avocettula – Fiery-tailed Awlbill
Genus Basilinna (2 species, recently split from Hylocharis)
Genus Boissonneaua – coronets (3 species)
Genus Calliphlox – Calliphlox woodstars (4 species)
Genus Calothorax (2 species)
Lucifer Hummingbird Calothorax lucifer
Genus Calypte (2 species)
Anna's Hummingbird, Calypte anna
Costa's Hummingbird, Calypte costae
Genus Campylopterus – sabrewings (12 species)
Violet Sabrewing Campylopterus hemileucurus
Genus Chaetocercus – Chaetocercus woodstars (6 species)
Genus Chalcostigma – Chalcostigma thornbills (5 species)
Genus Chalybura – plumeleteers (2 species)
Bronze-tailed Plumeleteer Chalybura urochrysia
Genus Chlorostilbon – typical emeralds (17 species)
Genus Chrysolampis – Ruby-topaz Hummingbird
Genus Chrysuronia – Golden-tailed Sapphire
Genus Clytolaema – Brazilian Ruby
Genus Coeligena – incas and starfrontlets (13 species)
Genus Colibri – violet-ears (4 species)
Green Violetear Colibri thalassinus
Genus Cynanthus (3 species)
Broad-billed Hummingbird Cynanthus latirostris
Dusky Hummingbird Cynanthus sordidus
Genus Cyanophaia
Blue-headed Hummingbird Cyanophaia bicolor
Genus Damophila – Violet-bellied Hummingbird
Genus Discosura – thorntails (4 species)
Green Thorntail Discosura conversii
Genus Doricha – typical sheartails (2 species)
Genus Doryfera – lancebills (2 species)
Genus Elvira – Elvira emeralds (2 species)
Coppery-headed Emerald Elvira cupreiceps
Genus Ensifera – Sword-billed Hummingbird
Genus Eriocnemis – typical pufflegs (12 species)
Genus Eugenes – Magnificent Hummingbird
Magnificent Hummingbird Eugenes fulgens
Genus Eulampis – caribs (2 species)
Green-throated Carib Eulampis holosericeus
Purple-throated Carib Eulampis jugularis
Genus Eulidia – Chilean Woodstar
Genus Eupetomena – Swallow-tailed Hummingbird
Genus Eupherusa (4 species)
Stripe-tailed Hummingbird Eupherusa eximia
Genus Florisuga – jacobins (2 species)
White-necked Jacobin Florisuga mellivora
Genus Goethalsia – Rufous-cheeked Hummingbird
Genus Goldmania – Violet-capped Hummingbird
Genus Haplophaedia – Haplophaedia pufflegs (3 species)
Genus Heliactin – Horned Sungem
Genus Heliangelus – sunangels (9 species)
Genus Heliodoxa – brilliants (9 species)
Green-crowned Brilliant Heliodoxa jacula
Genus Heliomaster – starthroats (4 species)
Genus Heliothryx – fairies (2 species)
Genus Hylocharis – typical sapphires (5 species)
Genus Hylonympha – Scissor-tailed Hummingbird
Genus Klais – Violet-headed Hummingbird
Genus Lafresnaya – Mountain Velvetbreast
Genus Lampornis – typical mountain-gems (6-8 species)
Blue-throated Hummingbird, Lampornis clemenciae
Amethyst-throated Hummingbird, Lampornis amethystinus
Red-throated Hummingbird, Lampornis (amethystinus) salvini
Green-throated Mountain-gem, Lampornis viridipallens
Green-breasted Mountain-gem, Lampornis sybillae
Purple-throated Mountain-gem, Lampornis calolaemus
White-throated Mountain-gem, Lampornis castaneoventris
Gray-tailed Mountain-gem, Lampornis castaneoventris cinereicauda
Genus Lamprolaima – Garnet-throated Hummingbird
Genus Lepidopyga (3 species)
Genus Lesbia – trainbearers (2 species)
Genus Leucippus (7 species)
Genus Leucochloris – White-throated Hummingbird
Genus Loddigesia – Marvelous Spatuletail
Genus Lophornis – coquettes (10 species)
Genus Mellisuga (2 species)
Genus Metallura – metaltails (9 species)
Genus Microchera – Snowcap
Snowcap Microchera albocoronata
Genus Microstilbon – Slender-tailed Woodstar
Genus Myrmia – Short-tailed Woodstar
Genus Myrtis – Purple-collared Woodstar
Genus Ocreatus – Booted Racket-tail
Genus Opisthoprora – Mountain Avocetbill
Genus Oreonympha – Bearded Mountaineer
Genus Oreopyra – White-bellied Mountain-gem
White-bellied Mountain-gem, Oreopyra hemileucus
Genus Oreotrochilus – hillstars (6 species)
Genus Orthorhyncus – Antillean Crested Hummingbird
Antillean Crested Hummingbird Orthorhyncus cristatus
Genus Oxypogon – Bearded Helmetcrest
Genus Panterpe – Fiery-throated Hummingbird
Fiery-throated Hummingbird Panterpe insignis
Genus Patagona – Giant Hummingbird
Genus Phaeochroa – Scaly-breasted Hummingbird
Genus Phlogophilus – piedtails (2 species)
Genus Polyerata – Polyerata emeralds
Genus Polyonymus – Bronze-tailed Comet
Genus Polytmus – goldenthroats (3 species)
Genus Pterophanes – Great Sapphirewing
Genus Ramphomicron – typical thornbills (2 species)
Genus Rhodopis – Oasis Hummingbird
Genus Sappho – Red-tailed Comet
Genus Saucerottia (9 species, probably one recently extinct)
Genus Schistes - Wedge-billed Hummingbird
Genus Selasphorus (6 species)
Scintillant Hummingbird, Selasphorus scintilla
Glow-throated Hummingbird, Selasphorus ardens
Volcano Hummingbird, Selasphorus flammula
Broad-tailed Hummingbird, Selasphorus platycercus
Rufous Hummingbird, Selasphorus rufus
Allen's Hummingbird, Selasphorus sasin
Genus Sephanoides – firecrowns (2 species)
Genus Stellula – Calliope Hummingbird
Genus Stephanoxis – Plovercrest
Genus Sternoclyta – Violet-chested Hummingbird
Genus Taphrolesbia – Gray-bellied Comet
Genus Thalurania – woodnymphs (6 species)
Violet-crowned Woodnymph Thalurania colombica
Genus Thaumastura – Peruvian Sheartail
Genus Tilmatura – Sparkling-tailed Hummingbird
Genus Topaza – topazes (2 species)
Genus Trochilus – streamertails (2 species)
Genus Urochroa – White-tailed Hillstar
Genus Urosticte – whitetips (2 species)
Subfamily Phaethornithinae (Hermit Hummingbirds
comprising 30–40 species in six genera.)
Genus Ramphodon
Saw-billed Hermit, Ramphodon naevius
Genus Eutoxeres
White-tipped Sicklebill, Eutoxeres aquila
Buff-tailed Sicklebill, Eutoxeres condamini
Genus Glaucis
Hook-billed Hermit, Glaucis dohrnii
Rufous-breasted Hermit or Hairy Hermit, Glaucis hirsuta
Bronzy Hermit, Glaucis aenea
Genus Threnetes
Band-tailed Barbthroat, Threnetes ruckeri
Sooty Barbthroat, Threnetes niger
Pale-tailed Barbthroat, Threnetes (niger) leucurus
Bronze-tailed Hermit, Threnetes (niger) loehkeni
Genus Anopetia
Broad-tipped Hermit, Anopetia gounellei
Genus Phaethornis
Dusky-throated Hermit, Phaethornis squalidus
Streak-throated Hermit, Phaethornis rupurumii
Tapajós Hermit, Phaethorni aethopyga
Little Hermit, Phaethornis longuemareus
Minute Hermit, Phaethornis idaliae
Cinnamon-throated Hermit, Phaethornis nattereri
Maranhao Hermit, Phaethornis (nattereri) maranhaoensis
Black-throated Hermit, Phaethornis atrimentalis
Stripe-throated Hermit, Phaethornis striigularis
Dusky Hermit, Phaethornis (striigularis) saturatus
Gray-chinned Hermit, Phaethornis griseogularis
Reddish Hermit, Phaethornis ruber
White-browed Hermit, Phaethornis stuarti
Buff-bellied Hermit, Phaethornis subochraceus
Sooty-capped Hermit, Phaethornis augusti
Planalto Hermit, Phaethornis pretrei
Scale-throated Hermit, Phaethornis eurynome
Pale-bellied Hermit, Phaethornis anthophilus
White-bearded Hermit, Phaethornis hispidus
White-whiskered Hermit, Phaethornis yaruqui
Green Hermit, Phaethornis guy
Tawny-bellied Hermit, Phaethornis syrmatophorus
Koepcke's Hermit, Phaethornis koepckeae
Needle-billed Hermit, Phaethornis philippii
Straight-billed Hermit, Phaethornis bourcieri
Long-billed Hermit, Phaethornis longirostris
Mexican Hermit, Phaethornis (longirostris) mexicanus
Baron's Hermit, Phaethornis (longirostris) baroni
(Eastern) Long-tailed Hermit, Phaethornis superciliosus
Great-billed Hermit, Phaethornis malaris
Margaretta's Hermit, Phaethornis (malaris) margarettae