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Bombus Citrinus
''Bombus citrinus'' is a species of bumblebee known commonly as the lemon cuckoo bumblebee due to its lemon-yellow color. It is native to eastern North America.Hatfield, R., et al. 2014''Bombus citrinus''.The IUCN Red List of Threatened Species. Downloaded on 04 March 2016. This is a cuckoo bumblebee, one that invades the colonies of other bumblebees, kills the resident queen, and takes control over the population of workers inside. Host bees for this species include the common eastern bumblebee (''Bombus impatiens'') and the half-black bumblebee ('' B. vagans''). Before the queen invades a nest she forages on various plants, such as asters, thistles, snakeroots, blazing-stars, mountain-mints, and goldenrods. Phylogeny ''Bombus citrinus'' belongs to the parasitic ''Bombus'' subgenus ''Psithyrus''. A previous classification had ''Psithyrus'' listed as its own genus, and so this species used to be identified as ''Psithyrus citrinus''. Members of ''Psithyrus'' are distinguis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombus Citrinus, F, Side, Talbot Co, MD 2016-01-07-12
A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus ''Bombus'', part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related genera (e.g., ''Calyptapis'') are known from fossils. They are found primarily in higher altitudes or latitudes in the Northern Hemisphere, although they are also found in South America, where a few lowland tropical species have been identified. European bumblebees have also been introduced to New Zealand and Tasmania. Female bumblebees can sting repeatedly, but generally ignore humans and other animals. Most bumblebees are social insects that form colonies with a single queen. The colonies are smaller than those of honey bees, growing to as few as 50 individuals in a nest. Cuckoo bumblebees are brood parasitic and do not make nests or form colonies; their queens aggressively invade the nests of other bumblebee species, kill the resident quee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen Basket
The pollen basket or corbicula (plural corbiculae) is part of the tibia on the hind legs of certain species of bees. They use the structure in harvesting pollen and carrying it to the nest or hive. Other species of bees have scopae instead. Etymology There was little formal description of the corbicula before Carl Linnaeus explained the biological function of pollen in the mid-18th century. In English the first edition of ''Encyclopædia Britannica'' described the structure in 1771 without giving it any special name. The second edition, 1777, refers to the corbicula simply as the "basket". By 1802 William Kirby had introduced the New Latin term into English. He had borrowed it, with acknowledgement, from Réaumur. Like other Latin anatomical terms, this had the advantages of specificity, international acceptability, and culture neutrality. By 1820 the term ''pollen-basket'' seems to have gained acceptance in beekeeping, extracted in though a century later a compendium of e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bumblebees
A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus ''Bombus'', part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related genera (e.g., ''Calyptapis'') are known from fossils. They are found primarily in higher altitudes or latitudes in the Northern Hemisphere, although they are also found in South America, where a few lowland tropical species have been identified. European bumblebees have also been introduced to New Zealand and Tasmania. Female bumblebees can sting repeatedly, but generally ignore humans and other animals. Most bumblebees are social insects that form colonies with a single queen. The colonies are smaller than those of honey bees, growing to as few as 50 individuals in a nest. Cuckoo bumblebees are brood parasitic and do not make nests or form colonies; their queens aggressively invade the nests of other bumblebee species, kill the resident queen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Social Parasitism (biology)
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's body; an ect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dufour's Gland
Dufour's gland is an abdominal gland of certain insects, part of the anatomy of the ovipositor or sting apparatus in female members of Apocrita. The diversification of Hymenoptera took place in the Cretaceous and the gland may have developed at about this time (200 million years ago) as it is present in all three groups of Apocrita, the wasps, bees and ants. Structure Dufour’s gland was first described by Léon Jean Marie Dufour in 1841. Along with the spermatheca and the poison gland, it develops as an invagination of valves of the sternum. It empties at the base of the ovipositor in ants but into the dorsal vaginal wall in bees and wasps. The gland is lined by a single layer of epithelial cells which secrete substances into the hollow interior. Muscles round the opening of the duct may help control the outflow. Function The purpose of Dufour’s gland is to secrete chemicals, but the nature of the secretions and their function differs in various hymenopteran groups. The sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distribution Of Bombus Citrinus
Distribution may refer to: Mathematics *Distribution (mathematics), generalized functions used to formulate solutions of partial differential equations *Probability distribution, the probability of a particular value or value range of a variable **Cumulative distribution function, in which the probability of being no greater than a particular value is a function of that value * Frequency distribution, a list of the values recorded in a sample *Inner distribution, and outer distribution, in coding theory *Distribution (differential geometry), a subset of the tangent bundle of a manifold *Distributed parameter system, systems that have an infinite-dimensional state-space * Distribution of terms, a situation in which all members of a category are accounted for * Distributivity, a property of binary operations that generalises the distributive law from elementary algebra *Distribution (number theory) *Distribution problems, a common type of problems in combinatorics where the goal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metasoma
The metasoma is the posterior part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma and the mesosoma. In insects, it contains most of the digestive tract, respiratory system, and circulatory system, and the apical segments are typically modified to form genitalia. In a few of the most primitive insects (the Archaeognatha), the metasomal segments bear small, articulated appendages called "styli", which are often considered to be vestigial. There are also pre-apical appendages in most insect orders, called cerci, which may be multi-segmented and almost resembling a posterior pair of antennae; these may be variously modified, or lost entirely. Otherwise, most adult insects lack appendages on the metasoma, though many larval insects (e.g., caterpillars) have some form of appendages, such as prolegs or, in aquatic insects, gills. In apocritan Hymenoptera (wasps, bees and ants), the metasoma consists of the second abdominal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megabombus
The list presented here is a checklist of world bumblebees (Tribe Bombini) based on the ''Bombus'' phylogeny presented by Cameron ''et al'' (2007) and grouped by subgenus following the revision of Williams ''et al'' (2008). The bumblebee fossil record extends back to the Late Eocene in North America and England with the most diversity of fossils found during the Miocene. The fossil species were discussed and revised by Dehon ''et al'' (2019). Genus ''Bombus'' Subgenus '' Alpigenobombus'' *'' Bombus angustus'' *'' Bombus breviceps'' *'' Bombus genalis'' *'' Bombus grahami'' *'' Bombus kashmirensis'' *''Bombus nobilis'' *'' Bombus wurflenii'' Subgenus ''Alpinobombus'' *'' Bombus alpinus'' *''Bombus balteatus'' – golden-belted bumble bee *''Bombus hyperboreus'' *'' Bombus kirbiellus'' *'' Bombus kluanensis'' *'' Bombus natvigi'' *'' Bombus neoboreus'' *''Bombus polaris'' *'' Bombus pyrrhopygus'' Subgenus ''Bombias'' *''Bombus auricomus'' – black-and-gold bumble bee *'' Bombus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombus Variabilis
''Bombus variabilis'' is a critically endangered species of cuckoo bumblebee Cuckoo bumblebees are members of the subgenus ''Psithyrus'' in the bumblebee genus ''Bumblebee, Bombus''. Until recently, the 28 species of ''Psithyrus'' were considered to constitute a separate genus. They are a specialized Social parasitism (b .... ''B. variabilis'' is a parasitic species. Females kill and replace the queens of '' B. pensylvanicus'', taking over their nests in the process. The decline of the latter as hosts can partially be linked to the decline of ''B. variabilis''. This species of bee can be distinguished by the lack of pollen baskets. The bee features have a dark face with yellow hair in its vertex and with dark brown wings. Its thorax has variations between black spots or patches. For females, they only have black abdomens but males can vary in their hair color patterns.'' References Bumblebees Insects described in 1872 {{bombus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombus Insularis
''Bombus insularis'' is a species of bumblebee in the subgenus ''Psithyrus'', the psithyrus, cuckoo bumblebees. It is native to northern and western North America, where it occurs throughout Canada, Alaska, the northern United States, and some western states. It is known commonly as the indiscriminate cuckoo bumblebee.Hatfield, R., et al. 2014''Bombus insularis''.The IUCN Red List of Threatened Species. Downloaded on 08 March 2016.NatureServe. 2015''Bombus insularis''.NatureServe Explorer Version 7.1. Accessed 8 March 2016. The female of the species is 1.6 to 1.9 centimeters long and just under a centimeter wide. The head is black with tufts of yellow hairs and the thorax is coated in long pale yellow hairs. The legs are hairy black. The abdomen has is black with yellow along the sides. The male is smaller, about half a centimeter wide at the abdomen. The head has long black hairs with small patches of yellow and the abdomen has strips of yellow and black hairs. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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