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Matriphagy is the consumption of the mother by her offspring. [1][2] The behavior generally takes place within the first few weeks of life and has been documented in some species of insects, nematode worms, pseudoscorpions, and other arachnids as well as in caecilian amphibians. [3][4][5] The specifics of how matriphagy occurs varies among ...
Offspring of the species Stegodyphus lineatus exhibit matriphagy, eating their mother. A female of Segestria florentina will sometimes die while guarding her eggs, and the hatched spiders will later eat her.
Wolf spiders resemble nursery web spiders (family Pisauridae), but wolf spiders carry their egg sacs by attaching them to their spinnerets, while the Pisauridae carry their egg sacs with their chelicerae and pedipalps.
Several wasp species utilize wolf spiders as a means to incubate their eggs. Wasp mothers paralyze spiders with their stingers for some time and inject their eggs inside and once the larvae develop inside, they consume the spider inside-out.
Within their first few days of emerging, the mother lays trophic eggs for her offspring to consume. At the end of their first week, the spiderlings begin to molt, and finally, 1 or 2 days later when the molting process is complete, the spiderlings cannibalize their mother. [7]
Sexual selection in spiders. Sexual selection in spiders shows how sexual selection explains the evolution of phenotypic traits in spiders. Male spiders have many complex courtship rituals and have to avoid being eaten by the females, with the males of most species surviving only a few matings and consequently having short life-spans.
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.
Pardosa agrestis. Westring, 1861. Pardosa agrestis is a non-web-building spider in the family Lycosidae, commonly known as wolf spiders . Pardosa agrestis have brown bodies with longitudinal bands. Females are slightly larger ranging from 6–9 mm, while males range from 4.5 to 7 mm. They are hard to distinguish from their related taxonomic ...