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Parcoblatta Bolliana
''Parcoblatta bolliana'', Boll's wood cockroach or Boll's wood roach, is a small species of wood cockroach native to the United States, measuring around long. Description ''Parcoblatta bolliana'' is a small, slender species. The male has long tegmina (outer forewings) and functioning hindwings, while the female tegmina are small oblong pads separated by more than twice their width, and its inner hindwings are absent. The female is stouter and more compact than the male, with a broader head and pronotum (the large plate directly behind the head). The male has a shining, dark brown head, pronotum disc, and base of tegmina, with fine and sparse yellowish hairs. It has paler brown legs, edges of the sides of its pronotum, and ends of its tegmina. Its ocelli (simple eyes) are well defined and colored a dull yellow. Its pronotum has two oblique impressions near its base, connected by a short transverse impression. The female is chocolate brown, and its legs are generally darker than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Louis Frédéric De Saussure
Henri Louis Frédéric de Saussure (; ; 27 November 1829 – 20 February 1905) was a Swiss mineralogist and entomologist specialising in studies of Hymenoptera and Orthopteroid insects. He also was a prolific taxonomist. Biography Saussure's elementary education was at Alphonse Briquet's then, as an adolescent, at the Hofwyl school run by Philipp Emanuel von Fellenberg. At the University of Geneva he was taught by François Jules Pictet de la Rive, who introduced him to entomology. After several years of study in Paris he received the degree of licentiate of the Faculty of Paris and obtained the degree of Doctor from the University of Giessen. He worked mainly on Hymenoptera and Orthoptera. His first paper, in 1852, was on solitary wasps. In 1854 he traveled to the West Indies, then to Mexico and the United States of America. There he met Louis Agassiz. He returned to Switzerland in 1856 with collections of American insects, myriapods, crustaceans, birds and ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockroach
Cockroaches (or roaches) are a paraphyletic group of insects belonging to Blattodea, containing all members of the group except termites. About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known as pests. The cockroaches are an ancient group, with their ancestors, known as " roachoids", originating during the Carboniferous period, some 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking mouthparts of aphids and other true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of climates, from Arctic cold to tropical heat. Tropical cockroaches are often much larger than temperate species. Modern cockroaches are not considered to be a monophyletic group, as it has be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tegmen
A tegmen (plural: ''tegmina'') designates the modified leathery front wing on an insect particularly in the orders Dermaptera ( earwigs), Orthoptera (grasshoppers, crickets and similar families), Mantodea (praying mantis), Phasmatodea (stick and leaf insects) and Blattodea (cockroaches). It is also a term used in botany to describe the delicate inner protective layer of a seed, and in zoology to describe a stiff membrane on the upper surface of the crown of a crinoid. In vertebrate anatomy it denotes a plate of thin bone forming the roof of the middle ear. The nature of tegmina The term ''tegmen'' refers to a miscellaneous and arbitrary group of organs in various orders of insects; they certainly are homologous in the sense that they all are derived from insect forewings, but in other senses they are analogous; for example, the evolutionary development of the short elytra of the Dermaptera shared none of the history of the development of tegmina in the Orthoptera, say. Also, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simple Eye In Invertebrates
A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-lensed "compound eye", and is not necessarily at all simple in the usual sense of the word. The structure of an animal's eye is determined by the environment in which it lives, and the behavioural tasks it must fulfill to survive. Arthropods differ widely in the habitats in which they live, as well as their visual requirements for finding food or conspecifics, and avoiding predators. Consequently, an enormous variety of eye types are found in arthropods. They possess a wide variety of novel solutions to overcome visual problems or limitations. Use of the term ''simple eye'' is flexible, and must be interpreted in proper context; for example, the eyes of humans and of other large animals such as most cephalopods, are ''camera eyes'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cow Dung
Cow dung, also known as cow pats, cow pies or cow manure, is the waste product (faeces) of bovine animal species. These species include domestic cattle ("cows"), bison ("buffalo"), yak, and water buffalo. Cow dung is the undigested residue of plant matter which has passed through the animal's gut. The resultant faecal matter is rich in minerals. Color ranges from greenish to blackish, often darkening soon after exposure to air. Uses Cow dung, which is usually a dark brown color, is often used as manure (agricultural fertilizer). If not recycled into the soil by species such as earthworms and dung beetles, cow dung can dry out and remain on the pasture, creating an area of grazing land which is unpalatable to livestock. In many parts of the developing world, and in the past in mountain regions of Europe, caked and dried cow dung is used as fuel. Dung may also be collected and used to produce biogas to generate electricity and heat. The gas is rich in methane and is use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parcoblatta Uhleriana
''Parcoblatta uhleriana'', the Uhler's wood cockroach, is a species of ''Parcoblatta'' native to the United States and Canada. It is a forest species also found in disturbed and urban environments. The male of the species flies freely, while the female does not fly. Description The male ''Parcoblatta uhleriana'' is a mostly uniform pale brownish-yellow, with slightly darker tegmina (outer forewings). It is relatively slender, with a broad head, and brownish stripe from the middle of its eyes downward. Its pronotum (the shield behind its head) is subelliptical (nearly elliptical), widest at the middle, and rounded angles. The female of the species coloration is more variable, but is usually a shining blackish-brown, and sometimes a dark reddish-brown except its abdomen. Most of the legs, and the edges of the tegmina, are a chestnut brown. It is broader, with a wider head, than the male. Its pronotum is suborbicular (nearly round), widest near the base. Tegmina at most reach the se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockroaches
Cockroaches (or roaches) are a paraphyletic group of insects belonging to Blattodea, containing all members of the group except termites. About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known as pests. The cockroaches are an ancient group, with their ancestors, known as " roachoids", originating during the Carboniferous period, some 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking mouthparts of aphids and other true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of climates, from Arctic cold to tropical heat. Tropical cockroaches are often much larger than temperate species. Modern cockroaches are not considered to be a monophyletic group, as it ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
