The two major divisions of flycatchers are Old World in the family Muscicapidae and New World in the family Tyrannidae of Tyrant Flycatchers. This is the largest family of birds in the world consisting of 37 genera and 400 species. The 37 genera and as follows and the 22 species with photos on are highlighted in red. Thumbnail photos represent only those taken in Costa Rica.

Genus Agriornis - shrike-tyrants (5 species)
Genus Alectrurus (2 species)
Genus Anairetes - tit-tyrants (8 species)
Genus Aphanotriccus (2 species)
Tawny-chested Flycatcher
Aphanotriccus capitalis
Genus Arundinicola - White-headed Marsh-tyrant
Genus Attila - attilas (7-8 species)
Genus Camptostoma (2 species)
Genus Capsiempis - Yellow Tyrannulet
Kauai Elepaio Chasiempis sandwichensis sclaeri
Yellow Tyrannulet Capsiempis flaveola
Genus Casiornis (2 species)
Genus Cnemarchus - Red-rumped Bush-tyrant
Genus Cnemotriccus - Fuscous Flycatcher
Genus Cnipodectes (2 species)
Genus Colonia - Long-tailed Tyrant
Genus Colorhamphus - Patagonian Tyrant
Genus Conopias (4 species)
White-ringed Flycatcher
Conopias albovittatus
Genus Contopus - pewees (14 species)
Genus Corythopis - antpipits (2 species)
Genus Culicivora - Sharp-tailed Grass-Tyrant
Genus Deltarhynchus - Flammulated Flycatcher
Genus Elaenia (18 species) Caribbean Elaenia Elaenia martinica
Genus Empidonas 15 species)
Black-capped Flycatcher
Empidonax atriceps
Grey Flycatcher Empidonas wrightii
Pacific-slope flycatcher Empidomas difficilis
Willow Flycatcher Empidonax traillii
Genus Empidonomus - Variegated Flycatcher
Genus Euscarthmus (2 species)
Genus Fluvicola - typical water-tyrants (3 species)
Genus Griseotyrannus - Crowned Slaty Flycatcher
Genus Gubernetes - Streamer-tailed Tyrant
Genus Hemitriccus - typical tody-tyrants (20 species)
Genus Hirundinea - Cliff Flycatcher and Swallow Flycatcher
Genus Hymenops - Spectacled Tyrant
Genus Inezia (4 species)
Genus Knipolegus - black-tyrants (11 species)
Genus Lathrotriccus (2 species)
Genus Legatus - Piratic Flycatcher
Genus Leptopogon (4 species)
Genus Lessonia (2 species)
Genus Lophotriccus (5 species)
Genus Machetornis - Cattle Tyrant
Genus Mecocerculus (6 species)
Genus Megarynchus - Boat-billed Flycatcher
Genus Mionectes (5 species)
Genus Mitrephanes (2 species)
Tufted Flycatcher
Mitrephanes phaeocercus
Genus Muscigralla - Short-tailed Field-tyrant
Genus Muscipipra - Shear-tailed Gray Tyrant
Genus Muscisaxicola - ground-tyrants (13 species)
Genus Myiarchus (22 species)
Ash-throated Flycatcher Myiarchus cinerascens
Dusty-Capped Flycatcher Myiarchus tuberculifer
Galapagos Flycatcher Myiarchus magnirostris
Brown-crested Flycatcher Myiarchus tyrannous
Panama Flycatcher Myiarchus panamensis
Genus Myiobius (5 species)
Sulfur-rumped Flycatcher
Myiobus sulphureipyglus
Genus Myiodynastes (5 species)
Streaked Flycatcher
Myiodynastes maculatus
Genus Myiopagis (7 species)
Genus Myiophobus (9 species)
Genus Myiornis (4 species)
Genus Myiotheretes (4 species)
Genus Myiotriccus - Ornate Flycatcher
Genus Myiozetetes (4-5 species)
Gray-capped Flycatcher
Myiozetetes granadensis
Social Flycatcher Myiozetetes similis
Genus Neopipo - Cinnamon Tyrant
Genus Neoxolmis - Chocolate-vented Tyrant
Genus Nesotriccus - Cocos Island Flycatcher
Genus Ochthoeca (9 species)
Genus Ochthornis - Drab Water-tyrant
Genus Oncostoma (2 species)
Genus Onychorhynchus - Royal Flycatchers (1-4 species,
Genus Ornithion (3 species)
Genus Phaeomyias - Mouse-colored Tyrannulet
Genus Phelpsia - White-bearded Flycatcher
Genus Phyllomyias (14 species)
Genus Phylloscartes (23 species)
Genus Pitangus - kiskadees (2 species, includes Philohydor)
Great Kiskadee
Pitangus sulphuratus
Genus Platyrinchus - spadebills (7 species)
Genus Poecilotriccus (12 species)
Genus Polioxolmis - Rufous-webbed Tyrant
Genus Polystictus (2 species)
Genus Pseudelaenia - Gray-and-white Tyrannulet
Genus Pseudocolopteryx (4 species)
Genus Pseudotriccus (3 species)
Genus Pyrocephalus - Vermilion Flycatcher Pyrocephalus rubinus
Genus Pyrrhomyias - Cinnamon Flycatcher
Genus Ramphotrigon (3 species)
Genus Rhynchocyclus (4 species)
Genus Rhytipterna (3 species)
Genus Satrapa - Yellow-browed Tyrant
Genus Sayornis - phoebes (3 species)
Genus Serpophaga (5 species)
Torrent Tyrannulet
Serophaga cinerea
Genus Sirystes - Sirystes
Genus Stigmatura (2 species)
Genus Sublegatus (3 species)
Genus Suiriri (2 species)
Genus Tachuris - Many-colored Rush-tyrant
Genus Taeniotriccus - Black-chested Tyrant
Genus Terenotriccus - Ruddy-tailed Flycatcher
Genus Todirostrum - typical tody-flycatchers (7 species)
Tody Flycatcher
Todirostrum cinereum
Genus Tolmomyias (5 species)
Genus Tumbezia - Tumbes Tyrant
Genus Tyrannopsis - Sulphury Flycatcher
Genus Tyrannulus - Yellow-crowned Tyrannulet
Scissor-tailed Flycatcher
Tyrannus forficatus,
Genus Tyrannus - kingbirds (13 species)
Fork-tailed Flycatcher
Trannus savanna
Genus Xenotriccus (2 species)
Genus Xolmis (8 species, including Heteroxolmis)
Genus Zimmerius (10 species)
Paltry Tyrannulet
Zimmerius vilissimus