Search results
Results from the WOW.Com Content Network
Biologists also apply the term "balloon silk" to the threads that mechanically lift and drag systems. [further explanation needed] It is generally thought that most spiders heavier than 1 mg are unlikely to use ballooning. [14] Because many individuals die during ballooning, it is less likely that adults will balloon compared to spiderlings.
Jumping spiders are a group of spiders that constitute the family Salticidae.As of 2019, this family contained over 600 described genera and over 6,000 described species, [1] making it the largest family of spiders – comprising 13% of spider species. [2]
The cribellate (lace-weaving) spider (Amaurobius) creates an untidy type of spider web from silk that looks blueish-grey when it is fresh. There is a retreat in the center where the spider waits ...
The web of a funnel-web spider Tegenaria duellica. Many spiders, but not all, build webs. Other spiders use a wide variety of methods to capture prey. Web: There are several recognised types of spider web. Spiral orb webs, associated primarily with the family Araneidae; Tangle webs or cobwebs, associated with the family Theridiidae; Funnel webs,
All spiders produce silk, although some spiders do not make webs. Silk is tied to courtship and mating. Silk produced by females provides a transmission channel for male vibratory courtship signals, while webs and draglines provide a substrate for female sex pheromones. Observations of male spiders producing silk during sexual interactions are ...
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
a: ^ Jackson and Blest (1982) say, "The resolution of the receptor mosaic of Layer I in the central retina was estimated to be a visual angle of 2.4 arc min, corresponding to 0–12 mm at 20 cm in front of the spider, or 0–18 mm at 30 cm." b: ^ Several species of cursorial spiders drink nectar as an occasional supplement their diet, and juveniles of some orb-web spiders digest pollen while ...
The cribellate spiders were the first spiders to build specialized prey-catching webs, later evolving into groups that used the spinnerets solely to make webs, instead using silk threads dotted with droplets of a sticky liquid (like pearls on a necklace) to capture small arthropods, and a few large species even small bats and birds.