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Macromia Illinoiensis
''Macromia illinoiensis'', also known as the swift river cruiser or the Illinois river cruiser, is a species of dragonfly in the family Macromiidae. It was described by Walsh Walsh may refer to: People and fictional characters * Walsh (surname), including a list of people and fictional characters with the surname Places * Fort Walsh, one of the first posts of the Royal Canadian Mounted Police * Walsh, Ontario, Norfolk ... in 1862. References Insects described in 1862 Taxa named by Benjamin Dann Walsh {{dragonfly-stub ... [...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] |
Macromiidae
The insect family Macromiidae contains the dragonfly species known as cruisers or skimmers. They tend to fly over bodies of water (and roads) straight down the middle. They are similar to Aeshnidae in size, but the eyes are green and just barely meet at the top of the head. Macromiidae, or Macromiinae, has been traditionally considered as a subfamily of Corduliidae (). It contains four genera and 125 species worldwide. Females of this family lack an ovipositor at the end of the abdomen and lay their eggs by dipping the abdomen in the water as they fly over. Ovipositing is usually done without a male. Early Stages The Naiads hatch after two weeks and are born with three gills for respiration (Lung 2001). Naiad In Greek mythology, the naiads (; grc-gre, ναϊάδες, naïádes) are a type of female spirit, or nymph, presiding over fountains, wells, springs, streams, brooks and other bodies of fresh water. They are distinct from river gods, who ...s are found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Dann Walsh
Benjamin Dann Walsh (September 21, 1808 – November 18, 1869) was an English-born American entomologist who served as the first official state entomologist in Illinois.Mallis (1971) He was a leading influence during a time of significant transition in American entomology. Walsh championed the application of scientific methods to control agricultural pests. He was a proponent of biological control as an effective means to manage insects. He was also one of the first American scientists to support Charles Darwin's theory of evolution and was instrumental in securing its broad acceptance in the entomological community. Biography Walsh was born in Hackney Central, Hackney, which was then a small village outside of London. The son of Benjamin Walsh (politician), Benjamin Walsh and Mary Bidwell Clarke, he was the fifth of thirteen children.Sheppard (2004) When Walsh was a boy, his father, a member of parliament, was charged with embezzlement and caught attempting to flee to Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1862
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. Insec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
