Spiders and Insects of the Sunol Region - BioBlitz
Published by the Alameda Creek Alliance for the 2014 Sunol Region BioBlitz.
Crab Spiders
Crab spider is a common name applied loosely to many species of spiders, but most nearly consistently to members of the family Thomisidae. Among the Thomisidae it refers most often to the familiar species of "flower crab spiders", though not all members of the family are limited to ambush hunting in flowers.
funnel weavers
Agelenidae is a large family of araneomorph spiders commonly referred to as funnel weavers. This includes the common "grass spiders" of the genus Agelenopsis, as well as the "hobo spider" (Tegenaria agrestis), whose venom may or may not be dangerous to humans. They should not be confused with the family of dangerous Australian funnel web weavers, the ...more ↓
Wolf Spiders
Wolf spiders are members of the family Lycosidae, from the Ancient Greek word "λύκος" meaning "wolf". They are robust and agile hunters with excellent eyesight. They live mostly solitary lives and hunt alone. Some are opportunistic hunters pouncing upon prey as they find it or even chasing it over short distances. Some will wait for passing prey in or near the mouth of a ...more ↓
Jumping Spiders
The jumping spider family (Salticidae) contains more than 500 described genera and about 5,000 described species, making it the largest family of spiders with about 13% of all species. Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Though they normally move quietly and fairly slowly, most species are capable of ...more ↓
Tarantulas
Tarantulas comprise a group of often hairy and very large arachnids belonging to the Theraphosidae family of spiders, of which approximately 900 species have been identified. This article only describes members of Theraphosidae, although some other members of the same suborder are commonly referred to as "tarantulas". Most species of tarantulas are not dangerous to humans, and ...more ↓
Crab Spiders
Crab spider is a common name applied loosely to many species of spiders, but most nearly consistently to members of the family Thomisidae. Among the Thomisidae it refers most often to the familiar species of "flower crab spiders", though not all members of the family are limited to ambush hunting in flowers.
Western Black Widow
Latrodectus Hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be yellow, and on rare occasions, white. The male of the species is around half ...more ↓
