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Stegodyphus dumicola, commonly known as the African social spider, is a species of spider of the family Eresidae, or the velvet spider family. It is native to Central and southern Africa . This spider is one of three Stegodyphus spiders that lives a social lifestyle ( S. lineatus , S. mimosarum , and S. dumicola ).
Spider in a web Spiders have woven their way into the mystical traditions and spiritual beliefs across cultures for centuries. These eight-legged architects of the natural world hold deep symbolic ...
Haplogyne: A spider whose female lacks an epigyne and in which the same ducts are used to transport sperm to the uterus and to the spermathecae; [15] see entelegyne; see also Haplogynae Heart mark : A narrow marking along the top of the abdomen roughly corresponding to the location of the heart
On the other hand, the secondary eyes of jumping spiders have no tapeta. [13] Other differences between the principal and secondary eyes are that the latter have rhabdomeres that point away from incoming light, just like in vertebrates, while the arrangement is the opposite in the former. The principal eyes are also the only ones with eye ...
One view, especially held in evolutionary psychology, is that the presence of venomous spiders led to the evolution of a fear of spiders, or made the acquisition of a fear of spiders especially easy. However, there is no evidence that during the pleistocene there were a sufficient number of venomous African spider fauna to trigger such an ...
A giant, flying venomous spider is making headlines across the nation — and for obvious reasons. The invasive Joro spider from Japan will soon make its way to the Northeast after initially ...
Nephila spiders vary from reddish to greenish yellow in color with distinctive whiteness on the cephalothorax and the beginning of the abdomen. Like many species of the superfamily Araneoidea, most of them have striped legs specialized for weaving (where their tips point inward, rather than outward as is the case with many wandering spiders).
A spider web preserved in amber, thought to be 110 million years old, shows evidence of a perfect "orb" web, the most famous, circular kind one thinks of when imagining spider webs. An examination of the drift of those genes thought to be used to produce the web-spinning behavior suggests that orb spinning was in an advanced state as many as ...