Spiders
Order Araneae
The Spiders (Order Araneae) includes 1,848 species across 82 families and 552 genera in our directory.
About Spiders
As of 2023, 51,673 spider species in 136 families have been recorded, though an estimated 150,000 species exist. Spiders rank 7th in total species diversity among all organism orders. Only 0.5% of spider species pose any risk to human health.
Economic Impact
The global spider community kills an estimated 400-800 million tons of prey annually (2017 study). Spiders provide billions of dollars in natural pest control for agriculture. Spider silk is 5× stronger than steel of the same diameter, driving a biomaterials research industry.
Ecological Role
Spider venom contains complex peptides with diverse pharmacological activities, making them valuable for drug development research. Spiders produce up to 7 types of silk from specialized glands. Spider silk genes have been inserted into mammals and plants for biotech applications.
Families in Araneae (82)
Species in Araneae (1,848)
Hypochilus sheari
Hypochilus sheari
Hypochilus thorelli
Hypochilus thorelli
Hypochilus xomote
Hypochilus xomote
Hypsosinga funebris
Hypsosinga funebris
Hyptiotes cavatus
Hyptiotes cavatus
Hyptiotes puebla
Hyptiotes puebla
Idionella rugosa
Idionella rugosa
Ischnothyreus peltifer
Ischnothyreus peltifer
Islandiana flaveola
Islandiana flaveola
Johnson Jumping Spider
Phidippus johnsoni
Johnson's Sac Spider
Clubiona johnsoni
Joro Spider
Trichonephila clavata
Jumping Spider
Tutelina simlis
Kibramoa madrona
Kibramoa madrona
Kukulcania arizonica
Kukulcania arizonica
Kukulcania geophila
Kukulcania geophila
Kukulcania utahana
Kukulcania utahana
Labrador Thin-legged Wolf Spider
Pardosa labradorensis
Labulla thoracica
Labulla thoracica
Labyrinthine Orb Weaver Spider
Metepeira labyrinthia
Lake Lochloosa Funnel-web Spider
Sosippus janus
Lance-backed Crab Spider
Thanatus formicinus
Larinia borealis
Larinia borealis
Larinia directa
Larinia directa
Lattice Orbweaver Spider
Araneus thaddeus
Lauricius hooki
Lauricius hooki
Lepthyphantes alpinus
Lepthyphantes alpinus
Linville Caverns Spider
Nesticus carolinensis
Linyphantes orcinus
Linyphantes orcinus
Linyphantes victoria
Linyphantes victoria
Linyphia rita
Linyphia rita
Litopyllus temporarius
Litopyllus temporarius
Long-legged Sac Spider
Cheiracanthuim mildei
Loxosceles palma
Loxosceles palma
Lutica nicolasia
Lutica nicolasia
Macrargus multesimus
Macrargus multesimus
Maevia intermedia
Maevia intermedia
Maevia undescribed
Maevia a
Magnolia Green Jumping Spider
Lyssomanes viridis
Mallos niveus
Mallos niveus
Mallos pallidus
Mallos pallidus
Mallos pearcei
Mallos pearcei
Mangora fascialata
Mangora fascialata
Mangora maculata
Mangora maculata
Marbled Cellar Spider
Holocnemus pluchei
Marbled Orb Weaver
Araneus marmoreus
Marchena minuta
Marchena minuta
Marinarozelotes barbatus
Marinarozelotes barbatus
Marinarozelotes lyonneti
Marinarozelotes lyonneti
Marpissa bina
Marpissa bina
Marpissa grata
Marpissa grata
Marpissa obtusa
Marpissa obtusa
Masoncus conspectus
Masoncus conspectus
Mastophora hutchinsoni
Mastophora hutchinsoni
Mastophora leucabulba
Mastophora leucabulba
Mecaphesa californica
Mecaphesa californica
Mecaphesa coloradensis
Mecaphesa coloradensis
Mecaphesa deserti
Mecaphesa deserti
Mecaphesa gabrielensis
Mecaphesa gabrielensis
Mecaphesa importuna
Mecaphesa importuna
Mecaphesa sierrensis
Mecaphesa sierrensis
Mecaphesa verityi
Mecaphesa verityi
Mecynargus borealis
Mecynargus borealis
Megahexura fulva
Megahexura fulva
Megalepthyphantes nebulosus
Megalepthyphantes nebulosus
Melocosa fumosa
Melocosa fumosa
Menemerus semilimbatus
Menemerus semilimbatus
Meotipa pulcherrima
Meotipa pulcherrima
Meriola arcifera
Meriola arcifera
Meriola californica
Meriola californica
Meriola decepta
Meriola decepta
Mermessus albulus
Mermessus albulus
Mermessus bryantae
Mermessus bryantae
Mermessus index
Mermessus index
Mermessus trilobatus
Mermessus trilobatus
Mermessus undulatus
Mermessus undulatus
Messua limbata
Messua limbata
Metacyrba floridana
Metacyrba floridana
Metacyrba punctata
Metacyrba punctata
Metallic Crab Spider
Philodromus marxi
Metaltella simoni
Metaltella simoni
Metaphidippus diplacis
Metaphidippus diplacis
Metaphidippus iviei
Metaphidippus iviei
Metaphidippus siticulosus
Metaphidippus siticulosus
Metellina mimetoides
Metellina mimetoides
Metepeira datona
Metepeira datona
Mexican Orange-kneed Tarantula
Brachypelma smithii
Mexigonus minutus
Mexigonus minutus
Mexigonus morosus
Mexigonus morosus
Mexitlia trivittata
Mexitlia trivittata
Miagrammopes mexicanus
Miagrammopes mexicanus
Micaria emertoni
Micaria emertoni
Micaria longipes
Micaria longipes
Micrargus longitarsus
Micrargus longitarsus
Micrathena funebris
Micrathena funebris
Microhexura idahoana
Microhexura idahoana
Microlinyphia dana
Microlinyphia dana
Microlinyphia impigra
Microlinyphia impigra
Micropholcus fauroti
Micropholcus fauroti
Mimetus aktius
Mimetus aktius