The Orb-weaving Spiders of Canada and Alaska: Araneae:Uloboridae, Tetragnathidae, Araneidae, TheridiosomatidaeOrb-weaving spiders spin the wheel-shaped webs often seen on dewy mornings in meadows and hedges, or on the walls and the eaves of buildings. This manual provides descriptions, illustrations, and taxonomic keys for the identification of the 94 species of these spiders represented in Canada and neighbouring regions. |
Contents
Introduction | 1 |
Definition of orbweaving spiders | 12 |
Production and uses of silk | 25 |
Family Uloboridae | 33 |
Family Tetragnathidae | 45 |
Genus Pachygnatha Sundevall | 88 |
Genus Metellina Chamberlin Ivie | 107 |
Genus Meta C L Koch | 116 |
Genus Araniella Chamberlin Ivie | 191 |
Genus Araneus Clerck | 198 |
Genus Cercidia Thorell | 261 |
Genus Singa C L Koch | 274 |
Genus Hypsosinga Ausserer | 280 |
Family Theridiosomatidae | 328 |
References | 341 |
| 367 | |
Common terms and phrases
Abdomen abdomen of female antérieure anteriorly Araneidae Araneus band basal lamella base Biology broad C.L. Koch calamistrum carapace Carapace yellowish Chamberlin & Ivie chelicerae Clerck Collection localities Coloration Comments coxa cribellate cribellum curved Cyclosa cymbium dark distal dorsal dorsal view embolus Emerton Epeira epigynal epigynum Eustala eyes and chelicerae Figs genital bulb genus Gertsch Hentz hook Hypsosinga Hyptiotes cavatus Kaston Keyserling l'épigyne lateral eyes lateral view Legs yellowish Levi male Figs margin median apophysis median eyes median septum mesal view Metepeira Opell orb weavers orb-weaving spiders Orbweaver Pachygnatha paired pale Palpal palpus of male paracymbium patella Pickard-Cambridge postérieure posterior plate posterior view posteriorly radii scape sclerite setae silk slender species specimens measured spermathecae spider spinnerets stabilimentum sticky spiral stout macrosetae tegulum terminal apophysis Tetragnatha thread tibia tip Fig Total length tubercles Uloboridae venter ventral view Walckenaer webs wide 10 specimens Wiehle Zygiella
Popular passages
Page 353 - Levi, HW 1968. The spider genera Gea and Argiope in America (Araneae: Araneidae).
Page 350 - Pages 9-22 in WA Shear, ed. Spiders: webs, behavior, and evolution. Stanford University Press, Stanford, Calif.
Page 342 - S. (1994) Sequence conservation in the C-terminal region of spider silk proteins (Spidroin) from Nephila clavipes (Tetragnathidae) and Araneus bicentenarius (Araneidaie)./.
Page 342 - JD and HW Levi. 1971. The orb weaver genus Neoscona in North America (Araneae: Araneidae). Bulletin of the Museum of Comparative Zoology, Harvard University, 141:465-500.
Page 345 - Craig, CL. and C. Freeman. 1991. Effects of predator visibility on prey encounter: a case study on aerial web weaving spiders. Behavioral Ecology and Sociobiology, 29:249-254.
Page 345 - Effects of background pattern on insect perception of webs spun by orb-weaving spiders.
Page 342 - Barth FG (1982) Spiders and vibratory signals: Sensory reception and behavioral significance. In: Witt PN, Rovner JS (eds) Spider communication: mechanisms and ecological significance.
Page 347 - In: WA Shear (ed.). Spiders: Webs, Behavior and Evolution. Stanford University Press, Stanford.