Based on collected data, the geographic range for Araneidae includes 81 countries and 51 states in the United States. The name "shamrock spider" applies to a large genus of spiders sometimes called orb spiders. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. They are very closely allied to the shamrock spider (A. trifolium), so it is easy to get confused! The rest of the spider's colors vary per individual. They are named for their delicate, intricate webs. They are named for their delicate, intricate webs. The spider family Araneidae, commonly known as Orb-weavers, have been sighted 2066 times by contributing members. Facts, information, quizzes and trivia on Shamrock Orbweaver Spider and Araneus trifolium. "Orb" can in English mean "circular", hence the English name of the group. Orb-weaver spiders or araneids are members of the spider family Araneidae.They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields and forests. Based on collected data, the geographic range for Araneus trifolium includes 2 countries and 11 states in the United States. Most species are mildly poisonous, but the most common species are usually safe. Picture an intricately designed spider web glistening with dew in the morning sun, and you are likely thinking of an orb weaver spider's web. Though many people hate spiders, they play an important role in … Eric Some of the white speckles on the abdomen follow along the midline. Araneus trifolium spiders have been sighted 32 times by contributing members. I’m fairly certain that the “shamrock orb weaver” posted recently is actually a color phase of the “marbled orb weaver,” Araneus marmoreus. It can usually be identified by its three dark rings around every leg. Shamrock Spider Description. Orb Weaver Spiders This family of spiders is a very large one and includes over 2800 species in over 160 genera worldwide, making it the third largest family of spiders known behind the jumping spider family (Salticidae) and the second largest family of spiders called Linyphiidae commonly known as Sheet Weavers because of the shape of their webs. The abdomen of the Shamrock Spider can come in several different colors. Eric This widespread family occupies a variety of habitats. This widespread family occupies a variety of habitats. They are very closely allied to the shamrock spider (A. trifolium), so it is easy to get confused! The orb web is the pretty creation that most people think of when asked to describe a spider web. Scientists in the United States Defense Department are trying to copy gold orb weaver silk in order to use it for bulletproof vests. Orb-Weaver Spiders SCIENTIFIC NAME. The name "shamrock spider" applies to a large genus of spiders sometimes called orb spiders. Their giant webs can span rivers, streams, and even lakes and is … The orb weaver spider group is comprised of a large number of species thus making it difficult to distinguish them from other spider groups and from each other. APPEARANCE. Araneus trifolium, the shamrock spider, is a widely distributed orb weaver that can come in various colors, mostly beige or brown colors. The spider species Araneus trifolium, commonly known as Shamrock Orb-weaver, belongs to the genus Araneus, in the family Araneidae. The shape is like the wheel on a bicycle with all the spokes connected. Most species are mildly poisonous, but the most common species are usually safe. Orb Weaver Spider. I’m fairly certain that the “shamrock orb weaver” posted recently is actually a color phase of the “marbled orb weaver,” Araneus marmoreus. These very common arachnids are found throughout most of the world. Araneidae is most often sighted outdoors, and during the month of October. Family Araneidae. Orb Weaver Spiders This family of spiders is a very large one and includes over 2800 species in over 160 genera worldwide, making it the third largest family of spiders known behind the jumping spider family (Salticidae) and the second largest family of spiders called Linyphiidae commonly known as Sheet Weavers because of the shape … The bold black and white legs of the Shamrock Spider lend this species are a given. The bulbous abdomen may be light white, yellow, bright red, or even purple.