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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] |
Insects Described In 1893
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
