Brettus cingulatus | |
---|---|
Male from Kerala, India. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Class: | Arachnida |
Order: | Araneae |
Infraorder: | Araneomorphae |
Family: | Salticidae |
Genus: | Brettus |
Species: | B. cingulatus |
Binomial name | |
Brettus cingulatus Thorell, 1895 | |
Brettus cingulatus is a species of jumping spider of the genus Brettus . It is found in India, Sri Lanka, China, Vietnam, Myanmar, Thailand, Malaysia and Indonesia. [1]
The species was first described in 1895 from a single specimen. The female was originally misidentified as another species, B. albolimbatus. Males and females look very different due to sexual dimorphism. Only in 2017 was the species rediscovered in Nagaon near Mumbai, India, far away from its original discovery in Myanmar. [2] [3]
The epithet "cingulatus" means "wearing a belt" in Latin, "albolimbatus" refers to white limbs.
This spider preys upon other spiders. To capture web-building spiders, the typical strategy is to stand at the edge of the web and pluck upon the silken strings with its pedipalps, trying out numerous patterns/rhythms until an effective one is found, then to lunge and capture/stab the spider when it gets lured over(aggressive mimicry). Brettus cingulatus does not adhere to spider silk and can walk on webs with ease, but usually does not go into the webs of other spiders. [4]
In studies, this spider also readily stalked insects, approaching at fast speeds, then slowing down and eventually lunging at the insect to capture it. [4] However,they prefer to eat web-building spiders. [5]
It has also been observed that individuals will also hunt on young individuals of other spiders. [6]
Oophagy was observed in an individual in Mangalore, India. An female which was missing legs I and II on the left side, was also guarding her egg cluster in her nest. Over the next two days, she remained in place. But after 3 days, around 8:30 AM, a different, intact female had taken over the nest, and the original female was found moving slowly on a lower branch. Later that day, around 3:30 PM, it was observed that the new female had eaten several eggs, with even more eggs consumed by dusk and nearly all eaten by 8:00 PM. [7]
Brooding by female Brettus cingulatus, including occupation of a single nest site by a series of different females, has been documented. [6] [7]
The quick removal of silk, white flecks, and eggshell fragments after hatching, along with the rapid darkening of the young's body parts, indicates that spiderlings might be eating these materials. While this feeding hasn't been directly observed, it's also possible that the brooding female could be removing or consuming these items. [8]
Jumping spiders are a group of spiders that constitute the family Salticidae. As of 2019, this family contained over 600 described genera and over 6,000 described species, making it the largest family of spiders at 13% of all species. Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats or crossing long gaps. Both their book lungs and tracheal system are well-developed, and they use both systems. Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes, with the anterior median pair being particularly large.
Portia is a genus of jumping spider that feeds on other spiders. They are remarkable for their intelligent hunting behaviour, which suggests that they are capable of learning and problem solving, traits normally attributed to much larger animals.
Portia labiata is a jumping spider found in Sri Lanka, India, southern China, Burma (Myanmar), Malaysia, Singapore, Java, Sumatra and the Philippines. In this medium-sized jumping spider, the front part is orange-brown and the back part is brownish. The conspicuous main eyes provide vision more acute than a cat's during the day and 10 times more acute than a dragonfly's, and this is essential in P. labiata′s navigation, hunting and mating.
Brettus is a genus of jumping spiders. Its six described species are found in southern Asia from India to China and Sulawesi, with a single species endemic to Madagascar.
Cocalus is a genus of jumping spiders that was first described by Carl Ludwig Koch in 1846, and is named after Cocalus, a Sicilian king of Greek mythology.
Hindumanes is a genus of jumping spiders found in India. It was first described by Dmitri Logunov in 2004. The name Hindumanes is a portmanteau of "Hinduism", the dominant religion of India, and Lyssomanes, the genus H. karnatakaensis was initially assigned to. As of May 2024, two species have been described:
Phaeacius is a spider genus of the family Salticidae, found in sub-tropical China and between India and the Malay Peninsula, including Sri Lanka, Sumatra and the Philippines. Although other spiders can jump, salticids including Phaeacius have significantly better vision than other spiders, and their main eyes are more acute in daylight than a cat's and 10 times more acute than a dragonfly's. The main eyes focus accurately on an object at distances from approximately 2 centimetres (0.79 in) to infinity, and in practice can see up to about 75 centimetres (30 in). They do not spin webs.
Myrmaplata plataleoides, also called the red weaver-ant mimicking jumper, is a jumping spider that mimics the Asian weaver ant in morphology and behaviour. This species is found in India, Sri Lanka, China and many parts of Southeast Asia.
The Spartaeinae are a subfamily of the spider family Salticidae. The subfamily was established by Fred R. Wanless in 1984 to include the groups Boetheae, Cocaleae, Lineae, Codeteae and Cyrbeae, which in turn were defined by Eugène Simon.
Maevia inclemens or the dimorphic jumping spider is a relatively common and colorful jumping spider of North America. In the males there are two forms, a very rare phenomenon in zoology. These use different courting displays, and differ in appearance: the "tufted" morph has a black body and pedipalps ("palps"), three black tufts across its "head", and pale legs; and the "gray" morph has black and white stripes all over its body and legs, orange palps, and no tufts. However, each form accounts for 50% of the adult males, and they are equally successful in mating. A female of Maevia inclemens is 6.5 to 8.0 millimetres long, while males are 4.75 to 6.50 millimetres long.
Phidippus clarus, also known as the brilliant jumping spider, is a species of jumping spider found in old fields throughout eastern North America. It often waits upside down near the top of a plant, which may be useful for detecting prey, and then quickly jumps down before the prey can escape. The spider is one of 60 species in the genus Phidippus, and one of about 5,000 in the Salticidae, a family that accounts for about 10% of all spider species. P. clarus is a predator, mostly consuming insects, other spiders, and other terrestrial arthropods.
Portia fimbriata, sometimes called the fringed jumping spider, is a jumping spider found in Australia and Southeast Asia. Adult females have bodies 6.8 to 10.5 millimetres long, while those of adult males are 5.2 to 6.5 millimetres long. Both sexes have a generally dark brown carapace, reddish brown chelicerae ("fangs"), a brown underside, dark brown palps with white hairs, and dark brown abdomens with white spots on the upper side. Both sexes have fine, faint markings and soft fringes of hair, and the legs are spindly and fringed. However, specimens from New Guinea and Indonesia have orange-brown carapaces and yellowish abdomens. In all species of the genus Portia, the abdomen distends when the spider is well fed or producing eggs.
Portia schultzi is a species of jumping spider which ranges from South Africa in the south to Kenya in the north, and also is found in West Africa and Madagascar. In this species, which is slightly smaller than some other species of the genus Portia, the bodies of females are 5 to 7 mm long, while those of males are 4 to 6 mm long. The carapaces of both sexes are orange-brown with dark brown mottling, and covered with dark brown and whitish hairs lying over the surface. Males have white tufts on their thoraces and a broad white band above the bases of the legs, and these features are less conspicuous in females. Both sexes have tufts of orange to dark orange above the eyes, which are fringed with pale orange hairs. Males' abdomens are yellow-orange to orange-brown with blackish mottling, and on the upper sides are black and light orange hairs, and nine white tufts. Those of females are pale yellow and have black markings with scattered white and orange-brown hairs on the upper side. P. schultzi has relatively longer legs than other Portia, and a "lolloping" gait.
Portia africana is a jumping spider found in Angola, Cameroon, the Central African Republic, Gabon, Ghana, the Ivory Coast, Sierra Leone, Zaire and Zambia. Its conspicuous main eyes provide vision more acute than a cat's during the day and 10 times more acute than a dragonfly's, and this is essential in P. africana′s navigation, hunting and mating.
Trite auricoma, commonly known as the golden-brown jumping spider, is a species of jumping spider endemic to New Zealand.
Brettus adonis, is a species of spider of the genus Brettus. It is endemic to Sri Lanka.
Gelotia lanka is a species of jumping spider of the genus Gelotia. It is endemic to Sri Lanka.
Menemerus nigli is a species of jumping spider in the genus Menemerus that originates in Asia. The male was identified in 2012 by Wanda Wesołowska and Mario Freudenschuss, and the female by Pir Asmat Ali, Wayne Maddison. Muhammad Zahid and Abida Buttin in 2018. The spider is medium-sized, typically 4.89 millimetres (0.193 in) in length, with a dark brown carapace and grey-brown abdomen that has a distinctive cream and white pattern created by small hairs. It was originally found in India, Pakistan and Thailand but was also found to have been introduced into Latin America, the first specimens being identified in Brazil in 2020. It seems to thrive amongst the sunlit stucco walls that are common in cities across the region. Menemerus nigli is used as an example of the ability of species that adapt to human habitation to expand their ecological niche and become global species.
Lyssomanes viridis, commonly known as the magnolia green jumper, is a species of jumping spider of the genus Lyssomanes, for which it is the type species. The species' native range extends through much of North America and Central America.
Tenkana arkavathi, synonym Colopsus arkavathi, is a species of jumping spider from southern Karnataka, India.