Entomology (from Ancient Greek ἔντομον (entomon) 'insect' and - λογία ( -logia ) 'study') is the scientific study of insects , a branch of zoology . In the past the term insect was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids , myriapods , and crustaceans . This wider meaning may still be encountered in informal use. The field is also referred to as insectology in American English, while in British English insectology implies the study of the relationships between insects and humans.
49-512: The Entomological Magazine was a publication devoted to entomology . The Entomological Magazine was published between September 1832 and October 1838 by the Society of Entomologists of London . The editor was Edward Newman aided by Francis Walker .The work includes reviews of entomological literature, articles and systematic papers in which new species are described. Contributors include John Curtis , Edward Doubleday ("Communications on
98-475: A caterpillar the limbs and wings of the butterfly could be seen (now called the imaginal discs ). When Swammerdam published The General History of Insects, or General Treatise on little Bloodless Animals later that year he not only did away with the idea that insects lacked internal anatomy but also attacked the Christian notion that insects originated from spontaneous generation and that their life cycle
147-538: A code of ethical behavior" (ESA Certification Corporation). Individuals who are planning to become Certified IPM Technicians (CITs), need to obtain at around 1-4 years of experience in pest management and successfully pass an exam, that is based on the information, that they are acquainted with (ESA Certification Corporation). Like in Public Health Entomology (PHE), those who want to become Certified IPM Technicians (CITs) also have to "agree to ascribe to
196-499: A code of ethical behavior" (ESA Certification Corporation). These individuals must also be approved to use pesticides (ESA Certification Corporation). For those who plan on becoming Board Certified Entomologists (BCEs), individuals have to pass two exams and "agree to ascribe to a code of ethical behavior" (ESA Certification Corporation). As with this, they also have to fulfill a certain amount of educational requirements every 12 months (ESA Certification Corporation). Forensic entomology
245-399: A small amount of water in the tip. He could thus determine whether there was a change in the volume of the muscle when it contracted by observing a change in the level of the water (image at right). When Swammerdam caused the muscle to contract by irritating the nerve, the water level did not rise but rather was lowered by a minute amount; this showed that no air or fluid could be flowing into
294-411: Is a branch of forensic science that studies insects found on corpses or elsewhere around crime scenes. This includes studying the types of insects commonly found on cadavers , their life cycles, their presence in different environments, and how insect assemblages change with decomposition . Medical entomology is focused upon insects and arthropods that impact human health. Veterinary entomology
343-742: Is a focus on insect-related inquiries is, by definition, entomology. Entomology, therefore, overlaps with a cross-section of topics as diverse as molecular genetics , environmental archaeology , behavior , neuroscience , biomechanics , biochemistry , systematics , physiology , developmental biology , ecology , morphology , and paleontology . Over 1.3 million insect species have been described, more than two-thirds of all known species. Some insect species date back to around 400 million years ago. They have many kinds of interactions with humans and other forms of life on Earth. For example, species such as P. pyralis conduct bioluminescent reactions in their light-emitting organs, which have been
392-434: Is included in this category, because many animal diseases can "jump species" and become a human health threat, for example, bovine encephalitis. Medical entomology also includes scientific research on the behavior, ecology, and epidemiology of arthropod disease vectors , and involves a tremendous outreach to the public, including local and state officials and other stake holders in the interest of public safety. Anthecology
441-640: Is referenced in Biblia naturae . A letter from Steno to Malpighi from 1675 suggests that Swammerdam's findings on muscle contraction had caused his crisis of consciousness. Steno sent Malpighi the drawings Swammerdam had done of the experiments, saying "when he had written a treatise on this matter he destroyed it and he has only preserved these figures. He is seeking God, but not yet in the Church of God." Together with his father he collected 6,000 objects in 27 drawer cabinets. Swammerdam's Historia insectorum generalis
490-428: Is the study of pollination and the relationships between flowers and their pollinators . It has received increasing attention in the interest of agriculture science amid the impacts of pollinator decline from human actions. Many entomologists specialize in a single order or even a family of insects, and a number of these subspecialties are given their own informal names, typically (but not always) derived from
539-639: The Royal Entomological Society in London in 1833, one of the earliest such societies in the world; earlier antecedents, such as the Aurelian society date back to the 1740s. In the late 19th century, the growth of agriculture, and colonial trade spawned the "era of economic entomology" which created the professional entomologist associated with the rise of the university and training in the field of biology. Entomology developed rapidly in
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#1732802478279588-899: The Walloon church , likewise Jan himself (who never married) and his father. As a youngster, Swammerdam had helped his father to take care of his curiosity collection . Despite his father's wish that he should study theology Swammerdam started to study medicine in 1661 at the University of Leiden . He studied under the guidance of Johannes van Horne and Franciscus Sylvius . Among his fellow students were Frederik Ruysch , Reinier de Graaf , Ole Borch , Theodor Kerckring , Steven Blankaart , Burchard de Volder , Ehrenfried Walther von Tschirnhaus and Niels Stensen . While studying medicine Swammerdam started his own collection of insects. In 1663 Swammerdam moved to France to continue his studies. It seems together with Steno. He studied for one year at
637-529: The idol of curiosities. In 1673 Swammerdam briefly fell under the influence of the Flemish mystic Antoinette Bourignon . His 1675 treatise on the mayfly , entitled Ephemeri vita , included devout poetry and documented his religious experiences. Swammerdam found comfort in the arms of Bourignon's sect in Nordstrand, Germany . Swammerdam traveled to Copenhagen to visit the mother of Nicolaus Steno , but
686-500: The 19th and 20th centuries and was studied by large numbers of people, including such notable figures as Charles Darwin , Jean-Henri Fabre , Vladimir Nabokov , Karl von Frisch (winner of the 1973 Nobel Prize in Physiology or Medicine ), and twice Pulitzer Prize winner E. O. Wilson . There has also been a history of people becoming entomologists through museum curation and research assistance, such as Sophie Lutterlough at
735-569: The Entomological Society of America have varying credential requirements. These different programs are known as Public Health Entomology (PHE), Certified IPM Technicians (CITs), and Board Certified Entomologists (BCEs) (ESA Certification Corporation). To be qualified in public health entomology (PHE), one must pass an exam on the types of arthropods that can spread diseases and lead to medical complications (ESA Certification Corporation). These individuals also have to "agree to ascribe to
784-653: The Entomological Society of America launched a new professional certification program for the pest control industry called the Associate Certified Entomologist (ACE). To qualify as a "true entomologist" an individual would normally require an advanced degree, with most entomologists pursuing a PhD. While not true entomologists in the traditional sense, individuals who attain the ACE certification may be referred to as ACEs or Associate Certified Entomologists. As such, other credential programs managed by
833-622: The Natural History of North America."), Alexander Henry Haliday (notably An essay on the classification of the parasitic Hymenoptera... of Britain which correspond with the Ichneumones minuti of Linnaeus), George Robert Waterhouse , John Obadiah Westwood , William John Swainson , Francis Walker ( notably Monographia Chalciditum ), George Thomas Rudd , William Edward Shuckard , James Charles Dale , James Francis Stephens and Frederick William Hope The Entomological Magazine
882-725: The Protestant University of Saumur , under the guidance of Tanaquil Faber . Subsequently, he studied in Paris at the scientific academy of Melchisédech Thévenot . 1665 he returned to the Dutch Republic and joined a group of physicians who performed dissections and published their findings. Between 1666 and 1667 Swammerdam concluded his study of medicine at the University of Leiden; he received his doctorate in medicine in 1667 under van Horne for his dissertation on
931-530: The Smithsonian National Museum of Natural History . Insect identification is an increasingly common hobby, with butterflies and (to a lesser extent) dragonflies being the most popular. Most insects can easily be allocated to order , such as Hymenoptera (bees, wasps, and ants) or Coleoptera (beetles). However, identifying to genus or species is usually only possible through the use of identification keys and monographs . Because
980-490: The almighty creator. Swammerdam's praise of the louse went on to become a classic: Herewith I offer you the Omnipotent Finger of God in the anatomy of a louse: wherein you will find miracle heaped on miracle and see the wisdom of God clearly manifested in a minute point. Since ancient times it had been asserted that the queen bee was male, and ruled the hive. In 1586 Luis Mendez de Torres had first published
1029-424: The class Insecta contains a very large number of species (over 330,000 species of beetles alone) and the characteristics distinguishing them are unfamiliar, and often subtle (or invisible without a microscope), this is often very difficult even for a specialist. This has led to the development of automated species identification systems targeted on insects, for example, Daisy , ABIS, SPIDA and Draw-wing. In 1994,
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#17328024782791078-503: The collectors tended to be from the aristocracy, and there developed a trade involving collectors around the world and traders. This has been called the "era of heroic entomology". William Kirby is widely considered as the father of entomology in England. In collaboration with William Spence , he published a definitive entomological encyclopedia, Introduction to Entomology , regarded as the subject's foundational text. He also helped found
1127-434: The finding that the hive was ruled by a female, but Torres had maintained that she produced all other bees in the colony through a "seed". In 1609 Charles Butler had recorded the sex of drones as male, but he wrongly believed that they mated with worker bees. In Biblia naturae the first visual proof was published that his contemporaries had mistakenly identified the queen bee as male. Swammerdam also provided evidence that
1176-474: The individual entitled to that name. No man can be truly called an entomologist, sir; the subject is too vast for any single human intelligence to grasp." — Oliver Wendell Holmes Sr. , The Poet at the Breakfast Table . Jan Swammerdam Jan or Johannes Swammerdam (February 12, 1637 – February 17, 1680) was a Dutch biologist and microscopist. His work on insects demonstrated that
1225-411: The mechanism of respiration , published under the title De respiratione usuque pulmonum . Together with van Horne, he researched the anatomy of the uterus . The result of this research was published under the title Miraculum naturae sive uteri muliebris fabrica in 1672. Swammerdam accused Reinier de Graaf of taking credit of discoveries he and Van Horne had made earlier regarding the importance of
1274-571: The microscope. The drawing Swammerdam produced of the internal anatomy of the queen bee was only published in 1737. His drawing of the honeycomb geometry was first published in Biblia naturae , but had been referenced by Giacomo Filippo Maraldi in his 1712 book. Details of Swammerdam's research on bees had already been published elsewhere because he had shared his findings with other scientists in correspondence. Among others, Swammerdam's research had been referenced by Nicolas Malebranche in 1688. In Biblia naturae Swammerdam's research on muscles
1323-412: The modern sense began only relatively recently, in the 16th century. Ulisse Aldrovandi 's De Animalibus Insectis (Concerning Insect Animals) was published in 1602. Microscopist Jan Swammerdam published History of Insects , correctly describing the reproductive organs of insects and metamorphosis . In 1705, Maria Sibylla Merian published the book Metamorphosis Insectorum Surinamensium about
1372-476: The muscle. The idea that nerve stimulation led to the movement had important implications for neuroscience by putting forward the idea that behavior is based on stimuli. Swammerdam's research had been referenced before its publication by Nicolas Steno , who had visited Swammerdam in Amsterdam. Swammerdam's research concluded after Steno had published the second edition of Elements of Myology in 1669, which
1421-666: The ovary and its eggs. He used waxen injection techniques and a single-lens microscope made by Johannes Hudde . While studying medicine Swammerdam had started to dissect insects and after qualifying as a doctor, he focused on them. His father pressured him to earn a living, but Swammerdam persevered and in late 1669 published Historia insectorum generalis ofte Algemeene verhandeling van de bloedeloose dierkens ( The General History of Insects, or General Treatise on little Bloodless Animals ). The treatise summarised his study of insects he had collected in France and around Amsterdam. He countered
1470-405: The preparation of hollow human organs was later much employed in anatomy. He had corresponded with contemporaries across Europe and his friends Gottfried Wilhelm Leibniz and Nicolas Malebranche used his microscopic research to substantiate their own natural and moral philosophy. But Swammerdam has also been credited with heralding the natural theology of the 18th century, were God's grand design
1519-425: The prevailing Aristotelian notion that insects were imperfect animals that lacked internal anatomy. Following the publication his father withdrew all financial support. As a result, Swammerdam was forced, at least occasionally, to practice medicine in order to finance his own research. He obtained leave at Amsterdam to dissect the bodies of those who died in the hospital. At university Swammerdam engaged deeply in
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1568-442: The queen bee is the sole mother of the colony. Swammerdam had engaged in five intense years of beekeeping . He had found that drones were masculine, and had no stinger . Swammerdam identified the worker bees as "natural eunuchs " because he was unable to detect ovaries in them, but described them as nearer to the nature of the female. Swammerdam had produced a drawing of the queen bee's reproductive organs, as observed through
1617-404: The religious and philosophical ideas of his time. He categorically opposed the ideas behind spontaneous generation , which held that God had created some creatures, but not insects. Swammerdam argued that this would blasphemously imply that parts of the universe were excluded from God's will. In his scientific study, Swammerdam tried to prove that God's creation happened time after time, and that it
1666-556: The reproductive organs of men and women at university he set out to study the generation of insects. He had devoted himself to studying insects after discovering that the king bee was indeed a queen bee . Swammerdam knew this because he had found eggs inside the creature. But he did not publish this finding. Swammerdam corresponded with Matthew Slade and Paolo Boccone and was visited by Willem Piso , Nicolaas Tulp and Nicolaas Witsen . He showed Cosimo III de' Medici , accompanied by Thévenot, another revolutionary discovery. Inside
1715-448: The scientific name of the group: Like other scientific specialties, entomologists have a number of local, national, and international organizations. There are also many organizations specializing in specific subareas. Here is a list of selected very large insect collections, housed in museums, universities, or research institutes. "I suppose you are an entomologist?" "Not quite so ambitious as that, sir. I should like to put my eyes on
1764-489: The seventeenth-century notion of metamorphosis —the idea that different life stages of an insect (e.g. caterpillar and butterfly ) represent different individuals or a sudden change from one type of animal to another. Swammerdam suffered a crisis of conscience; his father repudiated the study of insects. Having believed that his scientific research was a tribute to the Creator, he started to fear that he may be worshipping
1813-478: The spirits were analogous to fluids or gasses and calling them 'animal spirits'. In the model, which Descartes used to explain reflexes , the spirits would flow from the ventricles of the brain , through the nerves, and to the muscles to animate the latter. According to this hypothesis, muscles would grow larger when they contract because of the animal spirits flowing into them. To test this idea, Swammerdam placed severed frog thigh muscle in an airtight syringe with
1862-530: The subject of much research, especially in recent years. Entomology is rooted in nearly all human cultures from prehistoric times, primarily in the context of agriculture (especially biological control and beekeeping ). The natural Roman philosopher Pliny the Elder (23–79 CE) wrote a book on the kinds of insects, while the scientist of Kufa , Ibn al-A'rābī (760–845 CE) wrote a book on flies, Kitāb al-Dabāb ( كتاب الذباب ). However scientific study in
1911-465: The tropical insects of Dutch Surinam . Early entomological works associated with the naming and classification of species followed the practice of maintaining cabinets of curiosity , predominantly in Europe. This collecting fashion led to the formation of natural history societies, exhibitions of private collections, and journals for recording communications and the documentation of new species. Many of
1960-430: The various phases during the life of an insect— egg , larva , pupa , and adult—are different forms of the same animal. As part of his anatomical research, he carried out experiments on muscle contraction . In 1658, he was the first to observe and describe red blood cells . He was one of the first people to use the microscope in dissections, and his techniques remained useful for hundreds of years. Johannes Swammerdam
2009-402: Was a metamorphosis . Swammerdam maintained that all insects originated from eggs and their limbs grew and developed slowly. Thus there was no distinction between insects and so-called higher animals . Swammerdam declared war on "vulgar errors" and the symbolic interpretation of insects was, in his mind, incompatible with the power of God, the almighty architect. Swammerdam, therefore, dispelled
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2058-402: Was back in Amsterdam in early 1676. In a letter to Henry Oldenburg , he explained "I was never at any time busier than in these days, and the chief of all architects has blessed my endeavors". His religious crisis only interrupted his scientific research briefly and until his premature death aged 43, he worked on what was to become his main work. It remained unpublished when he died in 1680 and
2107-734: Was baptized on 15 February 1637 in the Oude Kerk Amsterdam. His father Jan (or Johannes) Jacobsz (-1678) was an apothecary and an amateur collector of minerals , coins, fossils , and insects from around the world. In 1632 he married Baartje Jans (-1660) in Weesp . The couple lived across the Montelbaanstoren , near the harbour, the headquarter and the warehouses of the Dutch West India Company where an uncle worked. Some of their children were buried in
2156-513: Was discontinued following controversy. Newman writes a "Valedictory Address" in Volume 5. The Entomological Magazine was succeeded by The Entomologist published in London by Edward Newman between 1840 and [1869] in four volumes: This in turn was succeeded by Newman's Entomologist published by Simpkin, Marshall & Co. at London [1869-1876] and from that date until 1973 (volume 106) as, once more, The Entomologist . Around World War I , it
2205-438: Was edited by Richard South . He died in 1932, but the journal continued publication until 1973 (volume 107). In 1989 it was revived, under the editorship initially of Hugh Loxdale , and then of B.O.C.Gardener. It ceased publication with volume 111 in 1992. Entomology Like several of the other fields that are categorized within zoology , entomology is a taxon -based category; any form of scientific study in which there
2254-707: Was published as Bybel der natuure posthumously in 1737 by the Leiden University professor Herman Boerhaave . Convinced that all insects were worth studying, Swammerdam had compiled an epic treatise on as many insects as he could, using the microscope and dissection. Inspired by Marcello Malpighi , in De Bombyce Swammerdam described the anatomy of silkworms , mayflies , ants , stag beetles , cheese mites , bees and many other insects. His scientific observations were infused by his belief in God ,
2303-454: Was published. Swammerdam played a key role in the debunking of the balloonist theory , the idea that 'moving spirits' are responsible for muscle contractions. The idea, supported by the Greek physician Galen , held that nerves were hollow and the movement of spirits through them propelled muscle motion. René Descartes furthered the idea by basing it on a model of hydraulics , suggesting that
2352-403: Was uniform and stable. Swammerdam was much influenced by René Descartes , whose natural philosophy had been widely adopted by Dutch intellectuals. In Discours de la Methode Descartes had argued that nature was orderly and obeyed fixed laws, thus nature could be explained rationally. Swammerdam was convinced that the creation, or generation, of all creatures obeyed the same laws. Having studied
2401-610: Was widely known and applauded before he died. Two years after his death in 1680 it was translated into French and in 1685 it was translated into Latin. John Ray , author of the 1705 Historia insectorum , praised Swammerdam' methods, they were "the best of all". Though Swammerdam's work on insects and anatomy was significant, many current histories remember him as much for his methods and skill with microscopes as for his discoveries. He developed new techniques for examining, preserving, and dissecting specimens, including wax injection to make viewing blood vessels easier. A method he invented for
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