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Argiope aurantia is a species of spider, commonly known as the yellow garden spider, [2] [3] black and yellow garden spider, [4] golden garden spider, [5] writing spider, zigzag spider, zipper spider, black and yellow argiope, corn spider, Steeler spider, or McKinley spider. [6] The species was first described by Hippolyte Lucas in 1833.
In North America, Argiope aurantia is commonly known as the black and yellow garden spider, zipper spider, corn spider, or writing spider, because of the similarity of the web stabilimenta to writing. The East Asian species Argiope amoena is known in Japan as kogane-gumo.
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Argiope aurantia. Sperm competition occurs in many species, such as Unicorn catleyi, Nephila Pilipes and Argiope aurantia, [14] [15] [16] with males acting to limit it by guarding the female or inserting parts of the male genitalia into the female's reproductive organs, [6] or using mating plugs [17] which come from the males seminal fluid. [18]
Argiope flavipalpis adult female An Argiope juvenile female spiders both same genus on the stabilimentum at the center of the web. A stabilimentum (plural: stabilimenta), also known as a web decoration, is a conspicuous silk structure included in the webs of some species of orb-web spider. Its function is a subject of debate.
Inside the abdomen we see the left ovary with spherical eggs which emerge from an opening between the spiracles. 2 Cephalothorax opened - m- muscles for the legs. g - two poison glands. b - sucking stomach. there are two sacs - c with protrusions d. k are feelers. 3 is a close up of a spinneret. The abdomen is also known as the opisthosoma.
Argiope bruennichi exhibit sexual dimorphism. The males average a length of approximately 4.5 mm while the females average 15 mm. The small size of the male spiders allows them to enter into a female's web undetected in order to mate; a major fitness advantage. [6] Egg sac
The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy.It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature.