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A more complicated form of epigyne is found in spiders of the genus Araneus, where there is developed an appendage which is usually soft and flexible, and which is termed the scape or ovipositor. When there is a well-developed scape, the tip of it is usually more or less spoon-shaped. This part of the scape is termed the cochlear.
Araneus is a genus of common orb-weaving spiders. It includes about 650 species, ... In females, the epigyne has a long scape (a tongue-like appendage).
English: Araneus diadematus (European garden spider), female, ventral view, in centre of web with epigyne clearly visible. Taken in UK. Date: 24 August 2019, 11:23:13:
At the epigyne of S. fuliginata females, the atrium is not apparent due to the rotation of the epigyne relative to the abdomen. [5] S. fuliginata females have total lengths ranging from 4.5-11.0 mm based on 30 specimens from two research studies (Dondale [3] and Framenau & Pedro [5]).
Various explanations have been proposed for the evolution of the complex structure of the palpal organs found in most groups of spiders. One is the "lock-and-key" theory. The epigyne of the female spider also has a complex shape, and studies of pairs killed instantaneously during copulation show a precise fit between the male and female ...
Paintings of Araneus angulatus from Svenska Spindlar of 1757, the first major work on spider taxonomy. Spider taxonomy is the part of taxonomy that is concerned with the science of naming, defining and classifying all spiders, members of the Araneae order of the arthropod class Arachnida, which has more than 48,500 described species. [1]
A couple of Araneus diadematus.The courting male is wrapped by the female before it has successfully copulated. Many cultures, such as South Africa and Slovakia, [1] believe that the male (usually significantly smaller than the female, down to 1% of her size as seen in Tidarren sisyphoides) is likely to be killed by the female after the coupling, or sometimes even before intercourse has been ...
Metellina segmentata is a spider in the family Tetragnathidae with a Palaearctic distribution. This spider's name is often shortened to Meta segmentata, and some even call it Araneus segmentatus simply meaning, orb weaving spiders. [1]