Arboretum Spiders

Black-and-yellow Garden Spider
Black-and-yellow Garden Spider. Photo by Chris Earley

Spiders are a group of invertebrates that we all recognise but most of us don't really know a lot about them. They are incredibly diverse in their shape and hunting strategies and many have gorgeous colours and patterns.

Shamrock Orbweaver.
Shamrock Orbweaver. Photo by Chris Earley.

Goldenrod Crab Spider
Goldenrod Crab Spider. Photo by Chris Earley.

 

 

The Arboretum list has 128 species on it so far. Most of these sightings were made by Dr. Gergin (Gerry) Blagoev, a research associate from the University of Guelph's Biodiversity Institute of Ontario. Thanks, Gerry! Thanks also to Candice Talbot for her records.

Spiders of The University of Guelph Arboretum

Araneae - [128 species] [21 families]

 

Family Agelenidae - (Funnel weavers)

  • Agelenopsis potteri
  • Agelenopsis utahana
  • Coras juvenilis
  • Coras lamellosus
  • Eratigena agrestis - Hobo Spider
  • Wadotes calcaratus

Family Anyphaenidae - (Ghost spiders)

  • Anyphaena pectorosa
  • Hibana gracilis - Garden Ghost Spider 
  • Wulfila saltabundus - Foliage Spider

Family Araneidae - (Orbweavers)

  • Acanthepeira stellata - Starbellied Orbweaver
  • Araneus diadematus - Cross Orbweaver
  • Araneus trifolium - Shamrock Orbweaver
  • Araniella displicata - Sixspotted Orbweaver
  • Argiope aurantia - Black-and-yellow Garden Spider
  • Argiope trifasciata - Banded Garden Spider
  • Eustala anastera - Humpbacked Orbweaver
  • Hypsosinga pygmaea - Pygmy Orbweaver
  • Hypsosinga rubens
  • Mangora gibberosa - Lined Orbweaver
  • Mangora placida - Tuftlegged Orbweaver

Family Clubionidae - (Sac spiders)

  • Clubiona abboti - Stout Sac Spider
  • Clubiona johnsoni
  • Clubiona pacifica

Family Corinnidae (Antmimic Spiders)

  • Castianeira sp.

Family Dictynidae - (Meshweavers)

  • Cicurina brevis
  • Cicurina sp. 1GAB
  • Dictyna coloradensis
  • Emblyna manitoba
  • Lathys sp. 1GAB

Family Gnaphosidae - (Stealthy ground spiders)

  • Drassyllus depressus
  • Micaria pulicaria
  • Zelotes fratris
  • Zelotes sp.

Family Linyphiidae - (Dwarf and sheetweb weavers)

  • Agyneta serrata
  • Agyneta sp.
  • Allomengea dentisetis
  • Baryphyma gowerense
  • Baryphyma trifrons affine
  • Centromerus sylvaticus
  • Ceraticelus emertoni
  • Diplostyla concolor
  • Erigone atra
  • Erigone autumnalis
  • Frontinella communis - Bowl and Doily Spider
  • Grammonota gigas
  • Grammonota ornata
  • Hypselistes semiflavus
  • Mermessus tridentatus
  • Mermessus trilobatus
  • Neriene montana
  • Neriene radiata - Filmy Dome Spider
  • Pocadicnemis sp. 2GAB
  • Scironis tarsalis
  • Walckenaeria atrotibialis
  • Walckenaeria communis

Family Liocranidae - (Liocranid spiders aka Spinylegged Sac Spiders)

  • Agroeca ornata

Family Lycosidae - (Wolf spiders)

  • Pardosa distincta
  • Pardosa milvina
  • Pardosa moesta
  • Pardosa saxatilis
  • Piratulla cantralli
  • Schizocosa crassipalpata
  • Trebacosa marxi
  • Trochosa terricola - Ground Wolf Spider

Family Mimetidae - (Pirate spiders)

  • Ero canionis
  • Mimetus notius

Family Philodromidae - (Running crab spiders)

  • Ebo sp. 1GAB
  • Philodromus cespitum - Turf Running-spider
  • Philodromus imbecillus
  • Philodromus peninsulanus
  • Philodromus rufus vibrans
  • Philodromus vulgaris
  • Thanatus formicinus - Diamond Spider
  • Tibellus maritimus
  • Tibellus oblongus - Slender Running Crab Spider

Family Pholcidae - (Longbodied cellar spiders)

  • Pholcus phalangioides - Longbodied Cellar Spider

Family Phrurolithidae - (Dwarf Antmimic Spiders)

  • Phrurotimpus alarius
  • Phrurotimpus borealis
  • Scotinella divesta
  • Scotinella minnetonka

Family Pisauridae - (Nursery Web Spiders and Fishing Spiders)

  • Dolomedes triton - Sixspotted Fishing Spider
  • Pisaurina brevipes

Family Salticidae - (Jumping spiders)

  • Eris militaris - Bronze Jumper
  • Evarcha hoyi - Hoy's Jumper
  • Habronattus decorus
  • Hentzia mitrata
  • Marpissa formosa
  • Naphyrs pulex
  • Pelegrina flavipes
  • Pelegrina galathea - Peppered Jumper
  • Pelegrina insignis
  • Pelegrina montana
  • Pelegrina proterva - Reckless Jumper
  • Phidippus audax - Bold Jumper
  • Phidippus borealis - Boreal Jumper
  • Phidippus clarus - Brilliant Jumper
  • Platycryptus undatus - Tan or Familiar Jumper
  • Salticus scenicus - Zebra Jumper
  • Sitticus fascigar - Mottled Jumper
  • Sitticus floricola palustris 
  • Talavera minuta
  • Tutelina similis

Family Tetragnathidae - (Longjawed orbweavers)

  • Glenognatha foxi
  • Leucauge venusta - Orchard Orbweaver
  • Meta ovalis - Cave Orbweaver
  • Pachygnatha autumnalis - Thickjawed Orbweaver
  • Pachygnatha dorothea
  • Pachygnatha tristriata
  • Tetragnatha laboriosa - Silver Longjawed Orbweaver
  • Tetragnatha straminea

Family Theridiidae - (Cobweb weavers)

  • Enoplognatha ovata - Candy Stripe Spider
  • Euryopis funebris - Ant-eating Spider
  • Neospintharus trigonum - Dewdrop Spider
  • Neottiura bimaculata
  • Parasteatoda tepidariorum - Common House Spider
  • Theridion frondeum - Leafy Cobweb Weaver
  • Thymoites unimaculatus
  • Yunohamella lyrica - Adolescent Common House Spider

Family Theridiosomatidae - (Ray orbweavers)

  • Theridiosoma gemmosum - Ray Orbweaver

Family Thomisidae - (Crab spiders)

  • Mecaphesa asperata - Northern Crab Spider
  • Misumena vatia - Goldenrod Crab Spider
  • Ozyptila praticola
  • Tmarus angulatus - Angled Crab Spider
  • Xysticus discursans
  • Xysticus emertoni
  • Xysticus punctatus
  • Xysticus sp. 3GAB

Family Uloboridae - (Hackled orbweavers)

  • Uloborus glomosus - Featherlegged Orbweaver

Total: 128 species