24-395: The Nyssonini are a group of cleptoparasitic bembicine wasps generally distinguished by the petiolate second submarginal cell of the forewing and rather strongly sculptured head and mesosoma (a common trait in cleptoparasitic wasps). Most species also bear sharp propodeal projections and spiny hind tibiae . There are ~230 spp. in 17 genera worldwide. This Apoidea -related article
48-407: A mud ball she transports back to adds to her nest under construction. All known eumenine species are predators, most of them solitary mass provisioners , though some isolated species show primitive states of social behaviour and progressive provisioning . When a cell is completed, the adult wasp typically collects beetle larvae , spiders , or caterpillars and, paralyzing them, places them in
72-407: A quarter of the species. Such a strategy should only be followed if it is evolutionarily stable , meaning that it offers a selective advantage to individuals that practise it. Kleptoparasitism costs time and energy which could otherwise be spent directly on feeding, so this cost must be outweighed by the benefit in energy gained from the stolen food. Mathematical modelling suggests that when food
96-486: Is Nomadinae (a subfamily of Apidae ), which comprises several hundred species in 35 genera. The cuckoo wasps (Chrysididae) lay their eggs in the nests of potter and mud dauber wasps. Other families of wasps have "cuckoo" species that parasitise related species, as for example Polistes sulcifer , which parasitises a related species, P. dominula . Numerous other wasp families have genera or larger lineages of which some or all members are kleptoparasitic (e.g.,
120-613: Is a stub . You can help Misplaced Pages by expanding it . Kleptoparasitism Kleptoparasitism (originally spelt clepto-parasitism , meaning " parasitism by theft ") is a form of feeding in which one animal deliberately takes food from another. The strategy is evolutionarily stable when stealing is less costly than direct feeding, such as when food is scarce or when victims are abundant. Many kleptoparasites are arthropods , especially bees and wasps, but including some true flies, dung beetles, bugs, and spiders. Cuckoo bees are specialized kleptoparasites which lay their eggs either on
144-534: Is a feeding strategy where one animal deliberately steals food from another. This may be intraspecific, involving stealing from members of the same species, or interspecific, from members of other species. The term denotes a form of parasitism involving theft , from Greek κλέπτω (kléptō, 'steal'). The strategy has been widely studied in birds ; in four families, all seabirds , the Fregatidae , Chionididae , Stercoraridae , and Laridae , it occurs in more than
168-473: Is abundant, ordinary feeding is the best strategy; when food abundance falls below a critical level, kleptoparasitism suddenly becomes advantageous, and aggressive interactions become common. Similarly, when potential victims are rare or widely dispersed, the time needed to find them may not be justified by the food that might be stolen from them, resulting in frequency-dependent selection . There are many lineages of cuckoo bees , all of which lay their eggs in
192-455: Is mud made of a mixture of soil and regurgitated water, but many species instead use chewed plant material. The name "potter wasp" derives from the shape of the mud nests built by species of Eumenes and similar genera. It is believed that Native Americans based their pottery designs upon the form of local potter wasp nests. The female wasp scrapes up mud or dirt with her mandibles and front legs, combining it with water and saliva to form
216-850: The magnificent frigatebird may be marginal. Gulls are both perpetrators and victims of opportunistic kleptoparasitism, particularly during the breeding season. While the victim is most often another member of the same species, other (principally smaller) gulls and terns can also be targeted. In the Americas , as brown pelicans surface and empty the water from their bills, they sometimes have their food stolen by Heermann's gulls and laughing gulls , which lurk nearby and grab escaping food items. Great black-backed gulls are skilled kleptoparasites, stealing from other gulls and from raptors. Several species of gull steal food from humans, for example takeaway food at seaside resorts. The relationship between spotted hyenas and lions , in which each species steals
240-591: The roseate tern , parent birds involved in kleptoparasitism are more successful in raising broods than non-kleptoparasitic individuals. Bald eagles have been seen attacking smaller raptors, such as ospreys , to steal fish from them. Among passerine birds, masked shrikes have been recorded stealing food from wheatears , and Eurasian blackbirds have been recorded stealing smashed snails from other thrushes . During seabird nesting seasons, frigatebirds soar above seabird colonies , waiting for parent birds to return to their nests with food for their young. As
264-410: The cell to serve as food for a single wasp larva. For example, Euodynerus foraminatus paralyzes the larvae of the poison hemlock moth ( A. alstroemeriana ). As a normal rule, the adult wasp lays a single egg in the empty cell before provisioning it. Some species lay the egg in the opening of the cell, suspended from a thread of dried fluid. When the wasp larva hatches, it drops and starts to feed upon
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#1732772778055288-477: The families Sphecidae and Crabronidae and not discussed here. Most eumenine species are black or brown, and commonly marked with strikingly contrasting patterns of yellow, white, orange, or red (or combinations thereof), but some species, mostly from tropical regions, show faint to strong blue or green metallic highlights in the background colors. Like most vespids, their wings are folded longitudinally at rest. They are particularly recognized by
312-508: The following combination of characteristics: Eumenine wasps are diverse in nest building. The different species may either use existing cavities (such as beetle tunnels in wood, abandoned nests of other Hymenoptera , or even man-made holes like old nail holes and screw shafts on electronic devices) that they modify in several degrees, or they construct their own either underground or exposed nests. The nest may have one or several individual brood cells. The most widely used building material
336-403: The genus Bengalia ( Calliphoridae ) steal food and pupae transported by ants and are often found beside their foraging trails. Musca albina ( Muscidae ) reportedly shows kleptoparasitic behaviour, laying eggs only in dung balls being interred by one of several co-occurring dung-rolling scarab species. Scarab dung beetles relocate large amounts of vertebrate dung, rolling balls of
360-522: The genus Ceropales in Pompilidae and the tribe Nyssonini in Crabronidae ). Some of these species are inquilines and brood parasites rather than kleptoparasites. Others are dubbed kleptoparasitoids, namely parasitoids that select hosts that have been parasitized by another female. Kleptoparasitoids may make use of the punctures made by previous parasitoids on their hosts; may follow
384-464: The material to their nests for their larvae to feed on. Several smaller species of dung beetle do not gather dung themselves but take it from the nests of larger species. For example, species of Onthophagus enter dung-balls while Scarabeus beetles are making them. Many semiaquatic bugs ( Heteroptera ) are kleptoparasitic on their own species. In one study, whenever the bug Velia caprai (water cricket) took prey heavier than 7.9 g, other bugs of
408-542: The nest cells of other bees , often within the same family. Bombus bohemicus , for example, parasitises several other species in its genus, including B. terrestris , B. lucorum , and B. cryptarum . These are instances of Emery's rule , named for the Italian entomologist Carlo Emery , which asserts that social parasites among insects, including kleptoparasites, tend to be closely related to their hosts. The largest monophyletic lineage of kleptoparasitic bees
432-567: The observed harassment results in some regurgitation , and that the food is then eaten by the Risso's dolphins. The behaviour is rare and may be opportunistic. Potter wasp Potter wasps (or mason wasps ), the Eumeninae , are a cosmopolitan wasp group presently considered a subfamily of Vespidae , but sometimes recognized in the past as a separate family, Eumenidae . Mud dauber wasps, which also build their nests with mud, are in
456-562: The other's kills, is a form of kleptoparasitism. Cheetahs are common targets. Bears, coyotes and wolves are very opportunistic and all have this behavior. Crab-eating macaques have also exhibited kleptoparasitic behaviors. All hyena species engage in this behavior when they can, as do jackals . Human hunters may commonly take the remains of fresh kills from other carnivores, such as lions and Eurasian lynx . Risso's dolphins have been observed charging "head-on" at sperm whales , causing them to open their mouths; it has been suggested that
480-496: The pollen masses made by other bees, or on the insect hosts of parasitoid wasps . They are an instance of Emery's rule , which states that insect social parasites tend to be closely related to their hosts. The behavior occurs, too, in vertebrates including birds such as skuas , which persistently chase other seabirds until they disgorge their food, and carnivorous mammals such as spotted hyenas and lions . Other species opportunistically indulge in kleptoparasitism. Kleptoparasitism
504-400: The returning birds approach the colony, the frigatebirds, which are fast and agile, swoop in to pursue them vigorously; they sometimes seize tropicbirds by their long tail plumes. The name frigatebird , as well as many of the frigatebirds' colloquial names, including man-o'-war bird and pirate of the sea , denote this behaviour. However, the amount of food obtained by kleptoparasitism in
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#1732772778055528-528: The same species joined it and successfully ate parts of the prey. Kleptoparasitic spiders , which steal or feed on prey captured by other spiders, are known to occur in five families: A few bird species are specialist kleptoparasites, while many others are opportunistic. Skuas (including jaegers) and frigatebirds rely heavily on chasing other seabirds to obtain food. Other species—including raptors , gulls , terns , coots , and some ducks and shorebirds —do so opportunistically. Among opportunists such as
552-458: The supplied prey for a few weeks before pupating . The complete lifecycle may last from a few weeks to more than a year from the egg until the adult emerges. Adult potter wasps feed on floral nectar . Potter wasps are the most diverse subfamily of vespids , with almost 200 genera, and contain the vast majority of species in the family (nearly 3,000 species from a total of about 4,500 in the whole family). The overwhelming morphological diversity of
576-544: The trails or traces left by parasitoids to locate hosts; or use hosts already weakened by other parasitoids. Some true flies (Diptera) are kleptoparasites; the strategy is especially common in the subfamily Miltogramminae of the family Sarcophagidae . There are also some kleptoparasites in the families Chloropidae and Milichiidae . Some adult milichiids, for example, visit spider webs where they scavenge on half-eaten stink bugs . Others are associated with robber flies ( Asilidae ), or Crematogaster ants . Flies in
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