Source databases

The data in current edition of the Catalogue of Life have been provided by 156 databases. Most datasets include one or more global species database sectors (GSDs), i.e. datasets being developed to cover all of the world's species in a particular group of organisms. Several datasets provide regional information for groups not yet covered globally. The datasets result from collaboration and editing by many expert taxonomists, whose names are found in the datasets themselves. A brief summary is listed below giving: database name; home page address; the author(s) or editor(s); host organisation; the group for which data are provided, preceded by its higher classification; and the number of species and infraspecific taxa included in this checklist.

Database Qualifiers
In the Catalogue of Life we introduce "Database Qualifiers" which shown in the interface. Qualifiers give users a quick guide to the reliability of presented data. Qualifiers have been given by authors/editors of each database and appear on the Database Details page, and alongside, with the database name on each Species Details page. Qualifiers reflect data reliability in the Catalogue of Life only, and are not applicable to the original view of the database throught its own website. Qualifiers include:

• Geographic Coverage (values G for "Global" and R for "Regional")
• Taxonomic Completeness (values 1 - 100%)
• Checklist Confidence (values , see below for details)
- Caution! This data set does not contain well-scrutinised taxonomic checklist, and in parts may be a list of taxonomically unvetted names only. However, it is used temporarily by the Catalogue of Life to fill major gaps as only available source at the time. See database abstract for more details.
- Caution! This data set is a scrutinised taxonomic checklist, but it is incomplete and at an early stage of its development. See database abstract for more details.
- This is a well-scrutinised taxonomic checklist, but it is restricted to a subset of species by geography (regional database), or sector of biological discipline (e.g. thematic database in particular ecological area, conservation, quarantine, pest and disease control, medicine or molecular biology, etc). This data set was included in the Catalogue of Life to fill gaps at lower levels of the taxonomic classification (e.g. species, genera) as temporarily solution. See database abstract for more details.
- This is a nearly complete and fully scrutinised taxonomic checklist with a good quality of expertise at the current stage of its development.
- This is a complete and fully scrutinised taxonomic checklist for an entire taxon with a high quality of expertise and frequent updates, which covers nearly all known species diversity in the taxon worldwide.


Source database English name of the group Living species descending Extinct species
World Plants: Synonymic Checklists of the Vascular Plants of the World UPDATED! 294 families of flowering plants 166,722 0
Systema Dipterorum Flies, mosquitoes, bots, midges and gnats 138,934 0
LepIndex: The Global Lepidoptera Names Index Butterflies and moths 136,051 0
WCSP: World Checklist of Selected Plant Families 113 families of seed plants 120,279 0
Species Fungorum Fungi; protozoan fungi; chromistan fungi 111,519 0
ITIS Global: The Integrated Taxonomic Information System UPDATED! Wide range of global taxonomic checklists of different taxa 99,836 0
WTaxa: Electronic Catalogue of Weevil names (Curculionoidea) UPDATED! Weevils 84,760 0
WoRMS Mollusca: MolluscaBase (2017) Marine molluscs 48,309 7,815
WSC: World Spider Catalog UPDATED! Spiders 45,826 0
Taxapad Ichneumonoidea Ichneumonid and braconid wasps 42,370 0
ITIS Regional: The Integrated Taxonomic Information System UPDATED! Wide range of taxa in all kingdoms 39,855 0
Scarabs: World Scarabaeidae Database UPDATED! Scarab beetles 38,642 271
CarabCat: Global database of ground beetles Ground beetles 37,404 0
TITAN: Cerambycidae database Longhorn beetles, timber beetles 33,955 0
FishBase UPDATED! Fishes 33,388 0
OrthopteraSF: Orthoptera Species File UPDATED! Grasshoppers, locusts, katydids, crickets 26,781 737
ITIS Bees: World Bee Checklist Bees 20,446 0
UCD: Universal Chalcidoidea Database Chalcidoid wasps 19,846 0
ILDIS World Database of Legumes Legumes 16,371 0
MOWD: Membracoidea of the World Database Treehoppers and leafhoppers 15,387 0
CCW: Catalogue of Craneflies of the World Craneflies 14,827 0
MOST: Moss TROPICOS Database Mosses 13,364 0
3i Curculio: 3i taxonomic databases, Curculionidae, subfamily Entiminae UPDATED! Broad-nosed weevils 13,298 17
World Ferns: Checklist of Ferns and Lycophytes of the World UPDATED! Ferns and fern-allies 13,233 0
FLOW: Fulgoromorpha Lists On the WEB Planthoppers 12,636 298
SysMyr: Systematic Myriapod Database Diplopods, pauropods and symphylans 12,635 0
WoRMS Polychaeta: World Polychaeta database UPDATED! Bristle worms 11,540 489
PBI Plant Bug: On-line Systematic Catalog of Plant Bugs (Insecta: Heteroptera: Miridae) Plant bugs 11,138 0
HymIS: Hymenoptera Information System Crabronids, spider-hunting and rhopalosomatid wasps 11,096 0
The Reptile Database UPDATED! Reptiles 10,233 0
WoRMS Isopoda: World Marine, Freshwater and Terrestrial Isopod Crustaceans database UPDATED! Pillbugs, slaters and woodlice 10,162 26
LIAS: A Global Information System for Lichenized and Non-Lichenized Ascomycetes Lichens 9,614 0
PsocodeaSF: Psocodea Species File UPDATED! Bark lices & parasitic lices 9,428 130
WoRMS Foraminifera: World Foraminifera Database UPDATED! Foraminifers 9,002 0
WoRMS Porifera: World Porifera database UPDATED! Sponges 8,818 28
CilCat: The World Ciliate Catalog Ciliates 8,668 0
GloBIS (GART): Global Butterfly Information System Hairstreaks, blues, coppers, swallowtails and whites 8,001 0
ELPT: Early Land Plants Today UPDATED! Hornworts and liverworts 7,393 210
ScaleNet: Systematic Database of the Scale Insects of the World Scale insects 7,090 0
WoRMS Brachyura: World List of marine Brachyura UPDATED! Crabs 7,047 2
LDL Neuropterida Species of the World Lacewings, antlions, owlflies, fishflies, dobsonflies, snakeflies and relatives 6,424 0
URMO: UNESCO-IOC Register of Marine Organisms Many groups of marine invertebrates and chordates 6,377 0
ZOBODAT: Zoological-Botanical Database (Vespoidea) Vespid wasps 6,203 0
Odonata: Global Species Database of Odonata Dragonflies and damselflies 5,912 0
WoRMS Bryozoa: World List of Bryozoa UPDATED! Bryozoans, moss animals 5,629 48
Dothideomycetes 5,296 0
AphidSF: Aphid Species File UPDATED! Aphids and allied groups 5,218 313
3i Typhlocybinae: 3i interactive keys and taxonomic databases, subfamily Typhlocybinae UPDATED! Leafhoppers 4,805 10
CockroachSF: Cockroach Species File UPDATED! Cockroaches 4,649 0
LygaeoideaSF: Lygaeoidea Species File NEW! Seed bugs 4,356 114
Brassicaceae species checklist and database Crucifers, mustard or cabbage family 3,778 0
WoRMS Hydrozoa: World Hydrozoa database UPDATED! Hydroids 3,677 32
PlecopteraSF: Plecoptera Species File UPDATED! Stoneflies 3,624 228
WoRMS Octocorallia: World list of Octocorallia UPDATED! Soft corals, blue coral, sea pens and gorgonians 3,610 3
Xylariaceae: Home of the Xylariaceae Fungi associated with dead wood 3,412 0
Psyl'list: Psylloidea database Jumping plant lice 3,385 0
FADA Ephemeroptera: World checklist of freshwater Ephemeroptera species Mayflies 3,341 0
ICTV/MSL: International Committee on Taxonomy of Viruses / Master Species List Viruses and subviral agents 3,186 0
ChiloBase: A World Catalogue of Centipedes (Chilopoda) for the web Centipedes 3,146 0
PhasmidaSF: Phasmida Species File UPDATED! Stick and leaf insects 3,141 0
CoreoideaSF: Coreoidea Species File UPDATED! Leatherbugs 3,098 12
3i Cicadoidea: 3i interactive keys and taxonomic databases, superfamily Cicadoidea UPDATED! Cicadas 3,079 66
COOL: Cercopoidea Organised On Line Froghoppers 2,608 0
MantodeaSF: Mantodea Species File UPDATED! Praying mantids 2,483 26
Tineidae NHM: Global Taxonomic Database of Tineidae (Lepidoptera) Clothes-moths 2,443 0
AnnonBase: Annonaceae GSD Custard apples 2,440 0
3i Cicadellinae: 3i interactive keys and taxonomic databases, subfamily Cicadellinae UPDATED! Leafhoppers 2,381 14
Lace Bugs Database (Hemiptera: Tingidae) Lace bugs 2,351 0
Catalogue of Life China Various taxa from China 2,309 0
NZIB: New Zealand Inventory of Biodiversity Various animalian taxa from New Zealand 2,242 0
The Scorpion Files Scorpions 2,217 0
Mites GSDs: PhytoseiidBase Phytoseiid mites 2,186 0
WoRMS Ophiuroidea: World Ophiuroidea database UPDATED! Brittle stars and basket stars 2,077 277
Parhost: World Database of Fleas Fleas 2,047 0
FADA Rotifera: Annotated checklist of the rotifers (Phylum Rotifera) Rotifers 2,014 0
ChenoBase: Chenopodiaceae GSD Goosefoot family 2,007 0
DermapteraSF: Dermaptera Species File UPDATED! Earwigs 1,893 41
WoRMS Monogenea: World list of Monogenea Monogenean flatworms 1,868 0
WoRMS Asteroidea: World Asteroidea database UPDATED! Starfish or sea stars 1,856 1
Global Gracillariidae: Global Taxonomic Database of Gracillariidae Gracillariid moths 1,855 0
IOPI Global Plant Checklist Five families of seed plants 1,845 0
WoRMS Trematoda: World list of Trematoda Flukes 1,785 0
Brentids: Brentidae of the World Straight-snouted weevils 1,755 0
WoRMS Holothuroidea: World List of Holothuroidea UPDATED! Sea cucumbers 1,695 0
WoRMS Cestoda: World list of Cestoda Tapeworms 1,583 0
The White-Files: Taxonomic checklist of the world’s whiteflies (Insecta: Hemiptera: Aleyrodidae) Whiteflies 1,557 0
WoRMS Cumacea: World Cumacea database UPDATED! Cumaceans or hooded shrimps 1,533 0
WWW: World Wide Wattle Wattles, thorntrees, acacias 1,469 0
FADA Turbellaria: World checklist of freshwater Turbellaria species Planarians 1,449 0
WoRMS Tanaidacea: World List of Tanaidacea UPDATED! Tanaids 1,373 15
Phyllachorales Tropical tar-spot fungi 1,339 0
SpmWeb: Spider Mites Web Spider mites 1,265 0
WoRMS Nemertea: World Nemertea database UPDATED! Ribbon worms 1,250 0
Microsporidia: Unicellular spore-forming protozoan parasites Microsporidians 1,223 0
Nomen.eumycetozoa.com: An online nomenclatural information system of Eumycetozoa UPDATED! Slime moulds 1,166 0
Saccharomycetes Ascomycetous yeast forming fungi 1,087 0
Solanaceae Source Nightshade genus 1,082 0
Nepticuloidea: Nepticulidae and Opostegidae of the World NEW! Pigmy moths & white eyecap moths 1,055 18
Zygomycetes Pin moulds and related fungi 1,047 0
FADA Cladocera: World checklist of freshwater Cladocera species Water fleas 1,043 0
WoRMS Echinoidea: World Echinoidea Database UPDATED! Sea urchins 1,010 2,189
WoRMS Proseriata-Kalyptorhynchia: World database of Proseriata and Kalyptorhynchia Freeliving flatworms 1,005 0
WoRMS Oligochaeta: World List of Marine Oligochaeta UPDATED! Earthworms, oligochaetes 913 0
Mites GSDs: TenuipalpidBase Tenuipalpid mites 887 0
TicksBase Ticks 867 0
WoRMS Gastrotricha: World Gastrotricha Database UPDATED! Gastrotrichs or hairy backs 826 0
Hexacorals: Hexacorallians of the World Sea anemones 738 0
Rhytismatales Tar-spot fungi 705 0
FADA Copepoda: World checklist of freshwater Copepoda species Copepods 703 0
BdelloideaBase: Bdellid & Cunaxid Databases Bdellid and cunaxid mites 665 0
Conifer Database Conifers 615 0
Strepsiptera Database: Global Strepsiptera Database Twisted-winged parasites 607 10
WoRMS Acoelomorpha: World list of Acoelomorpha UPDATED! 451 0
Mites GSDs: OlogamasidBase Ologamasid mites 446 0
WoRMS Polycystina: World list of Polycystina (Radiolaria) UPDATED! Polycystines (radiolarian protists) 417 0
EmbiopteraSF: Embioptera Species File UPDATED! Webspinners 397 15
CIPA: Computer Aided Identification of Phlebotomine sandflies of Americas Phlebotomine sandflies 396 0
Brachiopoda Database UPDATED! Lamp-shells 396 0
Trichomycetes Fungi associated with Arthropods 385 0
FADA Nematomorpha: World checklist of freshwater Nematomorpha species Freshwater hairworms 356 0
The World List of Cycads, online edition Cycads 353 0
RJB Geranium: Geranium Taxonomic Information System Cranesbills, geraniums 344 0
LecyPages: The Lecythidaceae Pages Brazil nut family 311 0
Glomeromycota Glomeromycota 272 0
Tessaratomidae Database: Illustrated catalog of Tessaratomidae Tessaratomids 240 0
Fauna Europaea, subphylum Turbellaria (Platyhelminthes) Turbellarians 237 0
WoRMS Myxozoa: World list of Myxozoa Myxozoans 194 0
WoRMS Kinorhyncha: World list of Kinorhyncha UPDATED! Mud dragons 188 0
ChrysididaeSF: Chrysididae Species File UPDATED! Cuckoo wasps or emerald wasps 188 2
Droseraceae Database Sundew family 179 0
Mites GSDs: RhodacaridBase Rhodacarid mites 145 0
WoRMS Chaetognatha: World list of Chaetognatha UPDATED! Arrow worms 131 0
WoRMS Rhombozoa: World list of Rhombozoa UPDATED! Rhombozoans 122 0
WoRMS Gnathostomulida: World list of Gnathostomulida UPDATED! Gnathostomulids or jaw worms 101 0
ETI WBD: World Biodiversity Database (Euphausiacea) Krill 86 0
WoRMS Leptostraca: World List of Leptostraca UPDATED! Leptostraca 59 1
FADA Halacaridae: World checklist of freshwater Halacaridae species Aquatic mites 59 0
ZorapteraSF: Zoraptera Species File UPDATED! Zorapterans 40 9
WoRMS Tantulocarida: World List of Tantulocarida UPDATED! Tantulocaridans 36 0
WoRMS Thermosbaenacea: World List of Thermosbaenacea UPDATED! Hot-springs shrimps 36 0
GrylloblattodeaSF: Grylloblattodea Species File UPDATED! Ice crawlers 33 545
MBB: Moss Bug Base Moss bugs 32 0
WoRMS Cephalochordata: World list of Cephalochordata UPDATED! Lancelets 30 0
WoRMS Remipedia: World Remipedia Database UPDATED! Remipedes 28 0
WoRMS Orthonectida: World list of Orthonectida UPDATED! Orthonectids 25 0
LHD: Lacistemataceae Holistic Database Waits Numi plant family 24 0
WoRMS Priapulida: World list of Priapulida UPDATED! Priapulid worms or penis worms 20 0
Phoronida Database UPDATED! Horseshoe worms 19 0
MantophasmatodeaSF: Mantophasmatodea Species File UPDATED! Gladiators or rock crawlers 19 6
WoRMS Mystacocarida: World List of Mystacocarida UPDATED! Mystacocarids 13 0
WoRMS Brachypoda: World List of Brachypoda UPDATED! Brachypods 12 0
WoRMS Bochusacea: World List of Bochusacea UPDATED! 6 0
WoRMS Xenoturbellida: World List of Xenoturbellida UPDATED! Xenoturbellids 6 0
WoRMS Merostomata: World list of Merostomata UPDATED! Horseshoe crabs 4 0
WoRMS Placozoa: World Placozoa Database UPDATED! Placozoans or pancake animals 1 0
Species 2000 additional Common Names for the Catalogue of Life 0 0
PaleoBioDB: The Paleobiology Database NEW! Paleoradiolarians, trilobites, paleodecapods, ammonites, belemnites, paleobrachyopods, dinosaurs and other paleoreptiles 0 35,328
CoL Management Classification: A Higher Level Classification of All Living Organisms Biota 0 0