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Oktawiusz Radoszkowski
General Oktawiusz Wincenty Bourmeister-Radoszkowski (variously spelt as Radochkoowsky, Radoszkowski, Radoszkowsky etc. and in Polish sources as Oktavij Vikentij Burmejster-Radoškovski) (russian: Октавий Иванович Радошковский; 7 August 1820, in Łomża – 13 May 1895, in Warszawa) was a Polish entomologist who specialised in Hymenoptera and worked in the Russian Empire. He was one of the founding members of the Russian Entomological Society. He published very many scientific papers describing new taxa and on the structure and taxonomic significance of the genitalia of Aculeate Hymenoptera. Radoshkovsky was born in Łomża in a noble family and was trained in the army, serving as an artillery officer who retired as a Lieutenant-General in 1879. He described numerous species of Chrysididae, many of which were collected by others such as Alexei Pavlovich Fedchenko (1844–1873). He served as a president of the Russian Entomological Society from 1865 to 1866 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psithyrus
Cuckoo 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 collect pollen and establish their own nests. Cuckoo bumblebees do not create a worker caste and produce only male and female reproductives. They are considered inquilines in the colonies of 'true' bumblebees. Cuckoo bumblebee females emerge from hibernation later than their host species to ensure that their host has had sufficient time to establish a nest. Before finding and invading a host colony, a ''Psithyrus'' female feeds directly from flowers until her ovaries are sufficiently developed, at which time she begins seeking a nest to invade. Once she has located and infiltrated a host colony, the ''Psithyrus'' female usurps the nest by killing or su ... [...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] |
