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Sacrificial mothers: Offspring of the species Stegodyphus lineatus eat their mother. Females of Segestria florentina sometimes die while guarding her eggs and the hatched spiders later eat her. Non-reproductive cannibalism: Some spiders, such as Pholcus phalangioides, will prey on their own kind when food is scarce. [18]
The species name refers to the black lines on the back of these spiders (not present in all individuals). S. lineatus is found in the southern Mediterranean region of Europe (south of Barcelona , in Sicily , southern Greece including Crete ) and as far east as Tajikistan .
As their name suggests they will eat spiders, and are capable of extracting spiders from the centre of their webs, a tricky task. They also consume a wide range of other small arthropod prey including crickets, caterpillars, butterflies, ants and other insects. In addition to animal prey they also consume nectar from flowers.
Spiders could, theoretically, eat every single human on earth within one year. It gets worse. Those humans consume about 400 million tons of meat and fish each year, so ultimately, the tiny ...
Females can reach a body length of 22 mm, males up to 15 mm. This species is much darker than others of the same genus. While subadult spiders have a greyish opisthosoma with a marking similar to Segestria senoculata, adults are of a uniform black, sometimes with a green iridescent shine, especially on the chelicerae, [2] which reflect with a striking green.
The spider species Araneus diadematus is commonly called the European garden spider, cross orbweaver, diadem spider, orangie, cross spider, and crowned orb weaver.It is sometimes called the pumpkin spider, [2] although this name is also used for a different species, Araneus marmoreus. [3]
The Goliath birdeater (Theraphosa blondi) belongs to the tarantula family Theraphosidae.Found in northern South America, it is the largest spider in the world by mass (175 g (6.2 oz)) and body length (up to 13 cm (5.1 in)), and second to the giant huntsman spider by leg span. [1]
Funnel-web spiders typically range in size from 8–12 millimetres (0.31–0.47 inches) for males and 10–14 mm (0.39–0.55 in) for females. [1] Agelena labyrinthica, however, has a body length of up to 18 mm (0.71 in). [3] The abdomen is dark with a pale central band flanked by white chevron marks. [1]