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Anthrenus Groehni
''Anthrenus'' is a genus of beetles in the Dermestidae family, skin beetles. One of several genera of carpet beetles, ''Anthrenus'' was historically placed in a subfamily Anthreninae, though presently included in the Megatominae. The genus ''Neoanthrenus'' is closely related. ''Anthrenus'' carpet beetles are small beetles a few (1.8-4mm) millimeters long with a rounded shape. Their antennae bear small clubs at the end, which are larger in the males than in females. Many have a delicate pattern, with a dark body covered in colorful scales of various brown, tan, red, whitish and grey hues. These scales rub off easily and old individuals are often partially devoid of them, showing the shining black elytra. A considerable number of subspecies and varieties have been named, but it is questionable whether these are all valid or simply refer to such age-related differences. The massive number of species has been divided into several subgenera, but these are not too firmly established ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imago
In biology, the imago (Latin for "image") is the last stage an insect attains during its metamorphosis, its process of growth and development; it is also called the ''imaginal'' stage ("imaginal" being "imago" in adjective form), the stage in which the insect attains maturity. It follows the final ecdysis of the immature instars. In a member of the Ametabola or Hemimetabola, species in which metamorphosis is "incomplete", the final ecdysis follows the last immature or '' nymphal'' stage. In members of the Holometabola, in which there is a pupal stage, the final ecdysis follows emergence from the pupa A pupa (; : pupae) is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages th ..., after which the metamorphosis is complete, although there is a prolonged period of maturation in some species. The imago is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoanthrenus
''Eurhopalus'' is a genus of beetles in the family Dermestidae. The genus was revised in 2022 to include several genera, along with species previously placed in the genus ''Trogoderma''. Taxonomy Recent research indicates that ''Trogoderma'' is polyphyletic, comprising two distinct, unrelated lineages. One lineage corresponds to ''Trogoderma'' sensu stricto - a primarily Holarctic clade that includes the type species '' Trogoderma glabrum'' and the economically significant Khapra beetle (''Trogoderma granarium''). The other lineage, formerly considered part of ''Trogoderma'', represents a distinct Southern Hemisphere clade, reclassified under the previously synonymized genus ''Eurhopalus''. This clade includes species previously assigned to several genera: ''Sodaliatoma'' Háva, monotypic '' Reesa'' Beal, ''Psacus'' Pascoe, ''Neoanthrenus'' Armstrong, ''Anthrenocerus'' Arrow, and '' Myrmeanthrenus'' Armstrong. This classification is not yet accepted by all researchers. For exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collection (museum)
A museum is distinguished by a collection of often unique objects that forms the core of its activities for exhibitions, education, research, etc. This differentiates it from an archive or library, where the contents may be more paper-based, replaceable and less exhibition oriented, or a private collection of art formed by an individual, family or institution that may grant no public access. A museum normally has a collecting policy for new acquisitions, so only objects in certain categories and of a certain quality are accepted into the collection. The process by which an object is formally included in the collection is called ''accessioning'' and each object is given a unique accession number. Museum collections, and archives in general, are normally catalogued in a collection catalogue, traditionally in a card index, but nowadays in a computerized database. Transferring collection catalogues onto computer-based media is a major undertaking for most museums. All new acquis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Specimen
A biological specimen (also called a biospecimen) is a biological laboratory specimen held by a biorepository for research. Such a specimen would be taken by sampling so as to be representative of any other specimen taken from the source of the specimen. When biological specimens are stored, ideally they remain equivalent to freshly-collected specimens for the purposes of research. Human biological specimens are stored in a type of biorepository called a biobank, and the science of preserving biological specimens is most active in the field of biobanking. Quality control Setting broad standards for quality of biological specimens was initially an underdeveloped aspect of biobank growth. There is currently discussion on what standards should be in place and who should manage those standards. Since many organizations set their own standards and since biobanks are necessarily used by multiple organizations and typically are driven towards expansion, the harmonization of standa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
