Identification: Tan to light brown, with nearly parallelĭark stripes extending from the eyes to the rear of the cephalothorax. Look for their webs in dense shrubs and at the base of ornamental or bunch grasses. When and Where to Find: Very common in summer through early fall. Usually active at night, but may opportunistically take prey during the Which the spider sits-in-wait for prey to enter the web. Shrubs, with a circular retreat at the back of the web in Size: body length about 1/2 inch total length (including legs) about 1 inch.īehavior: This spider constructs sheet webs, commonly in Long spinnerets that extend well beyond the end of the abdomenĬommon Name: no common name exists for this species of spider Tends to have one or more lengthwise concentric areas of a lighter Lighter midline and edge striping on the cephalothorax. The spider is typically medium brown with a Identification: A sheet web with a funnel at the end isĭistinctive for this family, and webs of this type suggest Grasses or other low vegetation such as ivy and mat-forming shrubs. When and Where to Find: Their common name, grass spider,īelies their habitat preference. Subdue prey before dragging it back into the retreat to consume. They quickly run from the funnel retreat to Typically sits inside the funnel part of the web and waits for prey to Size: body length is about 1/4-1/2 inch total length (including legs) is about 1 1/4 –1 1/2 inches.īehavior: These spiders build a web that looks like aįlat sheet, with a funnel-shaped retreat at the rear. (this spider is missing his 2nd right leg)įamily: Agelenidae (the funnel-web spiders) They do this by first rolling the silken threads of their web into Notes: Spiders are able to recycle their silk for future Lines within it, in the shape of a cross. Located on the spider's dorsal abdomen, with a series of white dots and Identification: Both sexes are reddish-brown to mediumīrown, commonly with reddish-orange tones. Female spiders need large webs to catch the many insects they need to eat to help them mature, and these webs are often constructed at eye-level, making them very noticeable. Mid-September the females typically reach their full mature size, with largeĪbdomens. In late summer, as they begin to attain their adult size. When and Where to Find: This spider may be found mostĪnywhere near human habitations, from door frames and house eaves toīetween branches of shrubs and trees. In the spring, the eggs hatch and tiny golden spiderlings emerge. After their eggs are laid, the adult spiders typically die. Egg sacs are produced in autumn, and deposited under leaves or in crevices. Once mature, males wander in search of females to mate. Females continue to spin webs after maturing into an adult, but males typically do not. Webs are typically consumed by the spider before spinning a Adult male body length is about 3/8 inch, but the abdomen isĪraneus diadematus spiderlings, clustered together (rollover for same cluster of young spiders scattered after touching them lightly)īehavior: These spiders spin orb-webs to capture flying Gravid (with fertilized eggs), the female's abdomen may appear quite With a total length (including legs) up to about 1 1/2 inches. Size: Adult female body length is about 3/8 - 5/8 inch (rollover for a slightly different color morph of an adult female) They either actively pursue prey or they wait for prey to "Wandering" spiders do not construct webs toĬapture prey. The types of webs that different spiders may spin include orb webs,Ĭob webs and sheet webs. The type of web that a spider spins is often used to help identify "Web-building" spiders spin webs to capture Search of prey, mates, or a place to lay their eggs. These spiders may also wander into homes, crawl-spaces, and garages in The spiders on this page are a few of the spiders that areĬommonly found in gardens and yards around Portland, Oregon. Spiders Commonly Found in Gardens and Yards
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