She guards the eggs until they hatch in about three weeks time after which the young spiders disperse.
The spider species Menemerus bivittatus, commonly known as Gray Wall Jumper, belongs to the genus Menemerus, in the family Salticidae. Menemerus Bivittatus, commonly called the grey wall jumper or the grey jumping spider, is a jumping spider that can be found in hot and tropical regions around the world and in the South of the United States. 1975. Menemerus bivittatus (Gray Wall Jumper) has been sighted in the following countries: Brazil, India, Malaysia, South Africa, United States. A revision of the spider genus Menemerus in Africa, Feeding behavior of trunk-living jumping spiders (Salticidae) in a coastal primary forest in The Gambia, https://en.wikipedia.org/w/index.php?title=Menemerus_bivittatus&oldid=979915039, Creative Commons Attribution-ShareAlike License, This page was last edited on 23 September 2020, at 14:14.
The spider may hold the moth in its jaws and drop down on a drag line while it waits for it to become subdued by the venom. Journal of General Physiology 66: 193-208. Their sense of sight is extraordinary for invertebrates; they can see in color (DeVoe 1975), and the large front eyes focus on objects (Land 1972). Mechanisms of orientation and pattern recognition by jumping spiders (Salticidae). Menemerus bivittatus is cosmopolitan in distribution being common in most tropical regions. men-eh-MAIR-us by-vih-TAY-us. , The female gray wall jumper builds an eggsac in a crack or other concealed position in which she lays 25 to 40 eggs in a purse-like silken case.
Gray wall jumpers are dorso-ventrally flattened and are covered with short dense, grayish-white hairs.
 They use their highly coordinated jumping ability to capture their prey and to move from one place to another. Explanation of Names . Instead, they directly jump on their prey to attack them. Ultraviolet and green receptors in principal eyes of jumping spiders.
She guards the eggs until they hatch in about three weeks time after which the young spiders disperse. The juvenile spiders replicate females. It is difficult for the spider to catch the bees as they fly out of the entrance but the bees are more vulnerable when returning to the nest.
Synonyms and other taxonomic changes . However, they barely succeed in catching them. These spiders have an immense jumping ability, moving from one place to the other with ease, even getting hold of crane flies twice their size. There are tufts of dark brown bristles near the large, forward-facing eyes. Color: Both genders have a brown body covered with grayish-white hairs, though they differ from the other in pattern. Her carapace is edged with two black bands and a thin white stripe and her abdomen is edged with broad black stripes on each side which unite at the posterior end. , In India this common spider is found on the outer walls of buildings and on tree trunks. Gray wall jumper of the Salticidae family has a Pantropical distribution, indigenous to the tropical regions of the northern and southern hemispheres. In America, the species is found in Florida, Texas, and California (USA) and south as far as Paraguay, including some Caribbean islands and Colombia. The female is generally paler and more brown, with a larger carapace and abdomen. It is often seen on the outside of man-made structures. Author of name: Léon Jean Marie Dufour. Researchers have seen this species taking down moths that were easily twice the spider’s weight (Robinson & Valerio 1977). Berlin, Springer-Verlag.
They do not build a web but instead, stalk their prey before launching an attack by leaping on the victim. The spiders are about nine millimetres long, the male being slightly smaller than the female.
, http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.485.4929&rep=rep1&type=pdf. Species bivittatus (Gray Wall Jumper) Other Common Names . Gray Wall Jumper.
Jumping spiders, or salticids, are so named because they have a highly coordinated jumping ability with which they capture prey and traverse from plant to plant. Here in the U.S. it is generally confined to Florida, Texas, and southern California. These spiders get their name as they commonly dwell on the outer walls of buildings. Immature spiders resemble the female.
Land M. 1972.
They are the most common jumping spider on building walls because their grey color camouflages against white walls, especially dirty white walls.  The spiders are about nine millimetres long, the male being slightly smaller than the female. The Gray Wall Jumper is not native to North America, however, having been introduced from the Old World tropics. Required fields are marked *. In The Gambia, these species have been noticed tracing the whereabouts of stinging bees.
EOL has data for 7 attributes, including: eats. Size: The females are 0.27 – 0.39 inches (7 – 10 mm) long, while males are smaller with a body length of0.19 -0.27 inches).
See the World Spider Catalog. Based on collected data, the geographic range for Menemerus bivittatus includes 5 countries and 3 states in the United States.
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