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Sympetrum Ambiguum
''Sympetrum ambiguum'', the blue-faced meadowhawk, is a dragonfly of the family Libellulidae. Description The aqua blue face of the blue-faced, green/turquoise when dead, meadowhawk may not be obvious to a casual observer, but is an important field mark distinguishing it from similar-looking meadowhawks in the genus '' Sympetrum'', such as ''Sympetrum vicinum ''Sympetrum vicinum'', the yellow-legged meadowhawk or autumn meadowhawk, is a member of the Libellulidae family. It grows to 26–35 mm long. Description Naiad This species has a small naiad, with a length of . It is mottled green and b ...''. This small dragonfly reaches a maximum total length of 38 mm. The thorax is grayish or olive brown. A mature male has a bright red abdomen, with black stripes; in females and juveniles, it remains brown. Both genders have six black rings on their abdomens. They can be found from summer through fall in Midwest North America close to water sources. References Externa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropoda
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insecta
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. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odonata
Odonata is an order of flying insects that includes the dragonflies and damselflies. Members of the group first appeared during the Triassic, though members of their total group, Odonatoptera, first appeared in Late Carboniferous. The two common groups are distinguished with dragonflies, placed in the suborder Epiprocta, usually being larger, with eyes together and wings up or out at rest, while damselflies, suborder Zygoptera, are usually smaller with eyes placed apart and wings along body at rest. All Odonata have aquatic larvae called naiads (nymphs), and all of them, larvae and adults, are carnivorous. The adults can land, but rarely walk. Their legs are specialised for catching prey. They are almost entirely insectivorous. Etymology and terminology Fabricius coined the term ''Odonata'' in 1793 from the Ancient Greek ( Ionic form of ) 'tooth'. One hypothesis is that it was because their maxillae are notably toothed. Most insects also have toothed mandibles. The wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libellulidae
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded (as Silsby does), there remains a family of over 1000 species. With nearly worldwide distribution, these are almost certainly the most often seen of all dragonflies. The genus ''Libellula'' is mostly New World, but also has one of the few endangered odonates from Japan: ''Libellula angelina''. Many of the members of this genus are brightly colored or have banded wings. The related genus ''Plathemis'' includes the whitetails. The genus ''Celithemis'' contains several brightly marked species in the southern United States. Members of the genus ''Sympetrum'' are called darters (or meadowhawks in North America) and are found throughout most of the world, except Australia. Several Southern Hemisphere species in the gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympetrum
''Sympetrum'' is a genus of small to medium-sized skimmer dragonflies, known as darters in the UK and as meadowhawks in North America. The more than 50 species predominantly live in the temperate zone of the Northern Hemisphere; no ''Sympetrum'' species is native to Australia. Most North American darters fly in late summer and autumn, breeding in ponds and foraging over meadows. Commonly, they are yellow-gold as juveniles, with mature males and some females becoming bright red on part or all of their bodies. An exception to this color scheme is the black darter (''Sympetrum danae''). The genus includes the following species: *'' Sympetrum ambiguum'' – blue-faced meadowhawk *''Sympetrum anomalum'' *'' Sympetrum arenicolor'' *''Sympetrum baccha'' *'' Sympetrum chaconi'' *''Sympetrum commixtum'' *''Sympetrum cordulegaster'' *''Sympetrum corruptum'' – variegated meadowhawk *''Sympetrum costiferum'' – saffron-winged meadowhawk *''Sympetrum croceolum'' *''Symp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Pierre Rambur
Jules Pierre Rambur (21 July 1801 – 10 August 1870) was a French entomologist. Rambur was born in Chinon. He studied the insect fauna of Corsica and Andalusia. He was the author of ''Histoire naturelle des insectes'' (1842) amongst other works. He died in Geneva. He was a Member and later (1839) List of presidents of the Société entomologique de France, President of the Société entomologique de France. Publications *''Catalogue des lépidoptères insectes Néuroptères de l’île de Corse'' (1832) *''Faune entomologique de l’Andalousie'' (two volumes, 1837–1840) *''Histoire naturelle des insectes( part of the ''Suites à Buffon'', 1842) *''Catalogue systématique des Lépidoptères de l’Andalousie'' (1858–1866). *with Adolphe Hercule de Graslin and Jean Baptiste Boisduval ''Collection iconographique et historique des chenilles; ou, Description et figures des chenilles d'Europe, avec l'histoire de leurs métamorphoses, et des applications à l'agriculture'' Paris,L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dragonfly
A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threatens dragonfly populations around the world. Adult dragonflies are characterized by a pair of large, multifaceted compound eyes, two pairs of strong, transparent wings, sometimes with coloured patches, and an elongated body. Many dragonflies have brilliant iridescent or metallic colours produced by structural colouration, making them conspicuous in flight. An adult dragonfly's compound eyes have nearly 24,000 ommatidia each. Dragonflies can be mistaken for the closely related damselflies, which make up the other odonatan infraorder ( Zygoptera) and are similar in body plan though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold their wings folded at rest, along or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympetrum Vicinum
''Sympetrum vicinum'', the yellow-legged meadowhawk or autumn meadowhawk, is a member of the Libellulidae family. It grows to 26–35 mm long. Description Naiad This species has a small naiad, with a length of . It is mottled green and brown in color. The abdomen has several large hooks along the top, and the last two abdominal segments have a single, large, rear-facing spine on each side. This species has bigger eyes than other members of the genus. Adult This is a small dragonfly, with a length of . The wings are mostly clear but have a small patch of yellowish to orange clouding at the base of each hindwing. Mature males are brownish black on the face and thorax and have a red abdomen, while immature males have a yellow thorax and a yellowish brown abdomen. Females have a brown thorax and a brownish-red abdomen. As its common name implies, the legs of the adults are yellow. Range and habitat This dragonfly is found in and around marshes, ponds and slow-moving streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University Press
Princeton University Press is an independent publisher with close connections to Princeton University. Its mission is to disseminate scholarship within academia and society at large. The press was founded by Whitney Darrow, with the financial support of Charles Scribner, as a printing press to serve the Princeton community in 1905. Its distinctive building was constructed in 1911 on William Street in Princeton. Its first book was a new 1912 edition of John Witherspoon's ''Lectures on Moral Philosophy.'' History Princeton University Press was founded in 1905 by a recent Princeton graduate, Whitney Darrow, with financial support from another Princetonian, Charles Scribner II. Darrow and Scribner purchased the equipment and assumed the operations of two already existing local publishers, that of the ''Princeton Alumni Weekly'' and the Princeton Press. The new press printed both local newspapers, university documents, ''The Daily Princetonian'', and later added book publishing to it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Jules Pierre Rambur
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
