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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 ...
Wolf spider. Wolf spiders are members of the family Lycosidae (from Ancient Greek λύκος (lúkos) 'wolf'), named for their robust and agile hunting skills and excellent eyesight. They live mostly in solitude, hunt alone, and usually do not spin webs. Some are opportunistic hunters, pouncing upon prey as they find it or chasing it over short ...
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.
External anatomy. The underside and head of a female spider. Spiders, unlike insects, have only two main body parts (tagmata) instead of three: a fused head and thorax (called a cephalothorax or prosoma) and an abdomen (also called an opisthosoma). The exception to this rule are the assassin spiders in the family Archaeidae, whose cephalothorax ...
Kauaʻi cave wolf spiders only produce 15-30 eggs per clutch, whereas other terrestrial wolf spiders may have 100 to 300. Female Kauaʻi cave wolf spiders carry their egg sacs on their backs until their spiderlings hatch in 30 to 50 days. Upon hatching, the large spiderlings will be carried on the back of the mother for several days. Kauaʻi ...
Hogna carolinensis. Hogna carolinensis, commonly known as the Carolina wolf spider and giant wolf spider, is found across North America. It is the largest of the wolf spiders in North America, [ 2 ] typically measuring at 18–20 mm for males and 22–35 mm for females. The Carolina wolf spider is mottled brown with a dark underside.
Pardosa amentata is a wolf spider between 5 mm and 8 mm in length and has a brownish coloured body with darker brown markings or spots. Its body is divided into two parts, the cephalothorax and the abdomen. The cephalothrax holds its eight eyes, four pairs of legs and the jaws, while the abdomen holds silk-producing organs called spinnerets ...
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 ...