Source databases

The data in current edition of the Catalogue of Life have been provided by 165 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! 312 families of flowering plants 178,836 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 UPDATED! 116 families of seed plants 119,858 433
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 103,971 0
WTaxa: Electronic Catalogue of Weevil names (Curculionoidea) Weevils 84,759 0
WoRMS Mollusca: MolluscaBase (2017) Marine molluscs 52,733 8,510
WSC: World Spider Catalog UPDATED! Spiders 46,196 0
Taxapad Ichneumonoidea Ichneumonid and braconid wasps 42,370 0
CarabCat: Global database of ground beetles UPDATED! Ground beetles 39,360 408
Scarabs: World Scarabaeidae Database UPDATED! Scarab beetles 38,826 274
ITIS Regional: The Integrated Taxonomic Information System UPDATED! Wide range of taxa in all kingdoms 34,381 0
TITAN: Cerambycidae database Longhorn beetles, timber beetles 33,955 0
FishBase UPDATED! Fishes 33,554 0
SF Orthoptera: Orthoptera Species File UPDATED! Grasshoppers, locusts, katydids, crickets 27,240 759
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
Jewel Beetles: The World of Jewel Beetles NEW! Jewel beetles 14,718 176
WoRMS Copepoda: World of Copepods database NEW! Copepods 14,620 2
HymIS: Hymenoptera Information System UPDATED! Crabronids, spider-hunting and rhopalosomatid wasps 13,798 4
MOST: Moss TROPICOS Database Mosses 13,364 0
3i Curculio: 3i taxonomic databases, Curculionidae, subfamily Entiminae UPDATED! Broad-nosed weevils 13,310 23
World Ferns: Checklist of Ferns and Lycophytes of the World UPDATED! Ferns and fern-allies 13,234 0
FLOW: Fulgoromorpha Lists On the WEB UPDATED! Planthoppers 13,086 305
SysMyr: Systematic Myriapod Database Diplopods, pauropods and symphylans 12,635 0
WoRMS Polychaeta: World Polychaeta database UPDATED! Bristle worms 11,634 502
PBI Plant Bug: On-line Systematic Catalog of Plant Bugs (Insecta: Heteroptera: Miridae) Plant bugs 11,138 0
SF Psocodea: Psocodea Species File UPDATED! Bark lices & parasitic lices 10,852 138
3i Auchenorrhyncha: World Auchenorrhyncha Database NEW! Cicadas, leafhoppers & treehoppers 10,437 516
The Reptile Database Reptiles 10,233 0
WoRMS Isopoda: World Marine, Freshwater and Terrestrial Isopod Crustaceans database UPDATED! Pillbugs, slaters and woodlice 10,185 26
LIAS: A Global Information System for Lichenized and Non-Lichenized Ascomycetes Lichens 9,614 0
WoRMS Foraminifera: World Foraminifera Database UPDATED! Foraminifers 8,934 0
WoRMS Porifera: World Porifera database UPDATED! Sponges 8,878 29
CilCat: The World Ciliate Catalog Ciliates 8,667 0
GloBIS (GART): Global Butterfly Information System Hairstreaks, blues, coppers, swallowtails and whites 8,001 0
ELPT: Early Land Plants Today 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 NSW: Neuropterida Species of the World UPDATED! Lacewings, antlions, owlflies, fishflies, dobsonflies, snakeflies and relatives 6,518 925
WoRMS Ostracoda: World Ostracoda Database NEW! Ostracods 6,305 0
ZOBODAT: Zoological-Botanical Database (Vespoidea) Vespid wasps 6,203 0
WoRMS Turbellarians: World List of turbellarian worms, Acoelomorpha, Catenulida, Rhabditophora NEW! Turbellarians 6,185 2
Odonata: Global Species Database of Odonata Dragonflies and damselflies 5,912 0
WoRMS Trematoda: World List of Trematoda Flukes 5,597 0
WoRMS Bryozoa: World List of Bryozoa UPDATED! Bryozoans, moss animals 5,444 174
Dothideomycetes 5,296 0
SF Aphid: Aphid Species File UPDATED! Aphids and allied groups 5,234 320
SF Cockroach: Cockroach Species File UPDATED! Cockroaches 4,649 0
SF Lygaeoidea: Lygaeoidea Species File UPDATED! Seed bugs 4,164 113
Brassicaceae species checklist and database Crucifers, mustard or cabbage family 3,778 0
WoRMS Hydrozoa: World Hydrozoa Database UPDATED! Hydroids 3,690 32
SF Plecoptera: Plecoptera Species File UPDATED! Stoneflies 3,662 231
WoRMS Octocorallia: World List of Octocorallia UPDATED! Soft corals, blue coral, sea pens and gorgonians 3,620 3
Psyl'list: Psylloidea database UPDATED! Jumping plant lice 3,452 52
Xylariaceae: Home of the Xylariaceae Fungi associated with dead wood 3,412 0
FADA Ephemeroptera: World checklist of freshwater Ephemeroptera species Mayflies 3,341 0
SF Phasmida: Phasmida Species File UPDATED! Stick and leaf insects 3,196 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
SF Coreoidea: Coreoidea Species File UPDATED! Leatherbugs 3,107 12
WoRMS Ascidiacea: Ascidiacea World Database NEW! Ascidians, sea squirts 2,913 0
WoRMS Monogenea: World List of Monogenea Monogenean flatworms 2,647 1
COOL: Cercopoidea Organised On Line UPDATED! Froghoppers 2,619 0
SF Mantodea: Mantodea Species File UPDATED! Praying mantids 2,487 26
Tineidae NHM: Global Taxonomic Database of Tineidae (Lepidoptera) Clothes-moths 2,443 0
AnnonBase: Annonaceae GSD Custard apples 2,440 0
Lace Bugs Database (Hemiptera: Tingidae) UPDATED! Lace bugs 2,338 13
Catalogue of Life China Various taxa from China 2,309 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 2,076 277
Parhost: World Database of Fleas Fleas 2,047 0
FADA Rotifera: Annotated checklist of the rotifers (Phylum Rotifera) Rotifers 2,014 0
WoRMS Oligochaeta: World List of Marine Oligochaeta UPDATED! Earthworms, oligochaetes 1,980 0
SF Dermaptera: Dermaptera Species File UPDATED! Earwigs 1,894 48
WoRMS Cestoda: World List of Cestoda Tapeworms 1,884 0
WoRMS Asteroidea: World Asteroidea Database UPDATED! Starfish or sea stars 1,876 1
Global Gracillariidae: Global Taxonomic Database of Gracillariidae Gracillariid moths 1,855 0
Brentids: Brentidae of the World UPDATED! Straight-snouted weevils 1,755 0
WoRMS Holothuroidea: World List of Holothuroidea UPDATED! Sea cucumbers 1,711 0
NZIB: New Zealand Inventory of Biodiversity Various animalian taxa from New Zealand 1,698 0
WoRMS Scleractinia: World List of Scleractinia NEW! Stony corals 1,587 86
The White-Files: Taxonomic checklist of the world’s whiteflies (Insecta: Hemiptera: Aleyrodidae) UPDATED! Whiteflies 1,557 0
WoRMS Cumacea: World Cumacea Database UPDATED! Cumaceans or hooded shrimps 1,541 0
WWW: World Wide Wattle Wattles, thorntrees, acacias 1,469 0
WoRMS Tanaidacea: World List of Tanaidacea UPDATED! Tanaids 1,383 22
WoRMS Nemertea: World Nemertea Database UPDATED! Ribbon worms 1,374 2
WoRMS PycnoBase: World Pycnogonida Database NEW! Sea spiders 1,344 10
Phyllachorales Tropical tar-spot fungi 1,339 0
SpmWeb: Spider Mites Web Spider mites 1,265 0
Microsporidia: Unicellular spore-forming protozoan parasites Microsporidians 1,222 0
Nomen.eumycetozoa.com: An online nomenclatural information system of Eumycetozoa Slime moulds 1,166 0
WoRMS Hexacoral: Hexacorallians (Actiniaria) of the World NEW! Sea anemones, tube anemones, hard corals, black corals 1,111 0
Saccharomycetes Ascomycetous yeast forming fungi 1,087 0
Nepticuloidea: Nepticulidae and Opostegidae of the World 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 1,012 3,133
Mites GSDs: TenuipalpidBase Tenuipalpid mites 887 0
TicksBase Ticks 867 0
WoRMS Gastrotricha: World Gastrotricha Database UPDATED! Gastrotrichs or hairy backs 840 0
Rhytismatales Tar-spot fungi 705 0
BdelloideaBase: Bdellid & Cunaxid Databases Bdellid and cunaxid mites 665 0
Conifer Database Conifers 615 0
Strepsiptera Database: Global Strepsiptera Database UPDATED! Twisted-winged parasites 602 11
Mites GSDs: OlogamasidBase Ologamasid mites 446 0
WoRMS Polycystina: World List of Polycystina (Radiolaria) UPDATED! Polycystines (radiolarian protists) 417 0
SF Embioptera: Embioptera Species File UPDATED! Webspinners 398 17
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
Gymnodinium: The dinoflagellate genus Gymnodinium checklist NEW! 345 31
RJB Geranium: Geranium Taxonomic Information System UPDATED! Cranesbills, geraniums 320 0
WoRMS Zoantharia: World List of Zoantharia NEW! Zoanthids 282 0
Glomeromycota Glomeromycota 272 0
WoRMS Antipatharia: World List of Antipatharia NEW! 269 0
Tessaratomidae Database: Illustrated catalog of Tessaratomidae UPDATED! Tessaratomids 254 1
WoRMS Ctenophora: Phylum Ctenophora, a list of all valid species names harvested from the Internet between 1998 - present NEW! Comb jellies, sea walnuts 200 11
WoRMS Myxozoa: World list of Myxozoa Myxozoans 194 0
WoRMS Scyphozoa: World list of Scyphozoa NEW! Jellyfishes 191 0
SF Chrysididae: Chrysididae Species File UPDATED! Cuckoo wasps or emerald wasps 190 7
WoRMS Kinorhyncha: World List of Kinorhyncha UPDATED! Mud dragons 188 0
Droseraceae Database Sundew family 179 0
WoRMS Echiura: World list of Echiura NEW! Echiurans, burrow worms, spoon worms 175 0
Mites GSDs: RhodacaridBase Rhodacarid mites 145 0
WoRMS Ceriantharia: World list of Ceriantharia NEW! Tube-dwelling anemones 135 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 Thaliacea: World list of Thaliacea NEW! Thaliaceans 78 0
WoRMS Appendicularia: World List of Appendicularia NEW! Pelagic tunicates 68 0
WoRMS Leptostraca: World List of Leptostraca UPDATED! Leptostraca 60 2
FADA Halacaridae: World checklist of freshwater Halacaridae species Aquatic mites 59 0
WoRMS Staurozoa: World list of Staurozoa NEW! Stalked jellyfishes 50 0
WoRMS Cubozoa: World list of Cubozoa NEW! Box jellyfishes, sea wasps 47 0
WoRMS Corallimorpharia: World List of Corallimorpharia NEW! Corals 46 0
SF Zoraptera: Zoraptera Species File UPDATED! Zorapterans 43 9
WoRMS Tantulocarida: World List of Tantulocarida UPDATED! Tantulocaridans 38 0
WoRMS Thermosbaenacea: World List of Thermosbaenacea UPDATED! Hot-springs shrimps 38 0
SF Grylloblattodea: Grylloblattodea Species File UPDATED! Ice crawlers 33 542
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 29 0
WoRMS Loricifera: World list of Loricifera NEW! Loriciferans 28 0
WoRMS Orthonectida: World List of Orthonectida UPDATED! Orthonectids 25 0
WoRMS Priapulida: World List of Priapulida UPDATED! Priapulid worms or penis worms 20 0
Phoronida Database UPDATED! Horseshoe worms 19 0
SF Mantophasmatodea: 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 5 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 Paleoradiolarians, trilobites, paleodecapods, ammonites, belemnites, paleobrachyopods, dinosaurs and other paleoreptiles 0 35,327
SF Coleorrhyncha: Coleorrhyncha Species File NEW! Fossilised moss bugs 0 66
CoL Management Classification: A Higher Level Classification of All Living Organisms Biota 0 0
IRMNG: Interim Register of Marine and Nonmarine Genera NEW! All genera 0 0