Psithyrus
WebThe meaning of PSITHYRUS is a genus of large bees resembling bumblebees but lacking the pollen-collecting apparatus and the worker caste and being parasitic in the nests of bumblebees. WebDefinition of psithyrus in the Definitions.net dictionary. Meaning of psithyrus. What does psithyrus mean? Information and translations of psithyrus in the most comprehensive dictionary definitions resource on the web.
Psithyrus
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WebMay 31, 2012 · The question of whether the evolutionary origin of the parasitic bumble bees (Psithyrus Lep.) was monophyletic or polyphyletic has not been convincingly resolved by conventional systematics.In this study numerical taxonomic (NT) analysis was applied to data on wing venation from a set of 13 species of Psithyrus and 60 species of non … WebThe eggs are laid during the worker growth phase of colony development. The result is a reduced number of workers reared in the parasitized nests. Replacement of host eggs with parasite eggs is a gradual process, so an overlap between colony investment in Bombus workers and Psithyrus reproductives exists. (Fisher, 1987) Key Reproductive Features
WebPsithyrus synonyms, Psithyrus pronunciation, Psithyrus translation, English dictionary definition of Psithyrus. Noun 1. Psithyrus - a large bee that resembles the bumblebee but lacks pollen-collecting apparatus and a worker caste genus Psithyrus arthropod genus - a... WebNov 28, 2015 · Identification. Females differ from those of all other Bombus in having the outer surface of the hind tibia convex and densely hairy (flat or concave and largely bare …
WebPsithyrus Lepeletier, 1832(1833?): 373. References . Lepeletier De Saint-Fargeau, A.L.M. 1832(1833?): Observations sur I'ouvrage institute: bombi scandinaviae monographice tractate etc. it Gustav, Dahlbom. Annales de la Société entomologique de France, 1: 366–382. BHL; Bombus (Psithyrus) at Natural History Museum. WebApr 22, 2010 · Socially parasitic cuckoo bumblebees ( Bombus ( Psithyrus) vestalis) parasitise colonies of Bombus terrestris share most life history characteristics with their hosts. As they parasitise only a subset of all available colonies, their population size should be lower than that of their hosts.
WebAug 1, 2010 · Many Psithyrus are host-specific, occupying the nests of one or a few host bumble bee species (Williams 2008). This host specificity is additionally supported by evidence that some parasites... tending to bring about crossword clueWebThe Psithyrus female destroys eggs laid by the Bombus queen and sometimes even young larvae. Thus, a par asitized Bombus nest contributes little to the next generation of Bombus. The Psithyrus female constructs cells on top of cocoons and oviposits in them. Care and feeding of the young is by the Bombus workers; Psithyrus produces no workers. tending to creep people out crosswordWebNov 28, 2015 · Genus Bombus (Bumble Bees) No Taxon Subgenus Psithyrus Synonyms and other taxonomic changes used to be treated as a separate genus ( discussion + list and distribution of world spp.) ( 1) Numbers 6 spp. in our area, 30 spp. total ( 2) Size Males are much smaller than females. Identification tending to meaningWebThe eggs are laid during the worker growth phase of colony development. The result is a reduced number of workers reared in the parasitized nests. Replacement of host eggs … tending to produce unity crosswordCuckoo bumblebees are members of the subgenus Psithyrus in the bumblebee genus Bombus. Until recently, the 28 species of Psithyrus were considered to constitute a separate genus. They are a specialized socially parasitic lineage which parasitises the nests of 'true' bumblebees, resulting in the loss of the ability to … See more • Bombus ashtoni • Bombus barbutellus • Bombus bellardii • Bombus bohemicus • Bombus branickii See more • Bombus vestalis • Bombus insularis • Bombus rupestris • Bombus norvegicus See more • Michener, C.D. (2000). The Bees of the World. Johns Hopkins University Press. • Macdonald, M. & Nisbet, G. (2006). Highland … See more tending to radiate somethingWebUntil recently, the 29 species of Psithyrus were considered to constitute a separate genus. They are a specialized lineage which has lost the ability to collect pollen and to rear their … trevon boydWebThere is a subgenus of Bombus called Psithyrus that are social parasites on other Bombus species. A Psithyrus queen enters the nest of a non-parasitic Bombus and kills the queen. The workers of the raided colony then provide for the Psithyrus female and her offspring. Keys: There are good keys to Eastern US Bumble bees and Western US Bumble bees. tending to moral looseness crossword