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Narycius
''Narycius opalus'' is a flower chafer beetle that is endemic to the Western Ghats of India. It is the sole species in the genus. The adult male has a prominent projection on the head, while the female has a much shorter horn. This structure is probably the result of sexual selection, as in similar beetles. The adult beetle is shiny iridescent rose ranging to green, with intermediates. The species was described and given its name by Henry Dupont who also described the females as a separate species, named ''Narycius olivaceus''. John O. Westwood, Westwood named the green color form as ''Narycius (Cyphonocephalus) smaragdulus''. This beetle is about 2 to 2.5 cm long and 1.3 cm wide. The distinctive cephalic horns may be nearly two-thirds the length of the thorax and abdomen combined. The surface is matt and the elytra are minutely pitted along lines. The prothorax and scutellum (insect), scutellum have pits that are irregularly placed. The upper edges of the cephalic hor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower Chafer
Flower chafers are a group of Scarabaeidae, scarab beetles comprising the subfamily Cetoniinae. Many species are diurnal animal, diurnal and visit flowers for pollen and nectar, or to browse on the petals. Some species also feed on fruit. The group is also called fruit and flower chafers, flower beetles and flower scarabs. There are around 4,000 species, many of them still undescribed. Ten tribes are presently recognized: Cetoniini, Cremastocheilini, Diplognathini, Goliathini, Gymnetini, Phaedimini, Schizorhinini, Stenotarsiini, Taenioderini, and Xiphoscelidini. The former tribes Trichiini and Valgini were elevated in rank to subfamily. The tribe Gymnetini is the biggest of the American tribes, and Goliathini contains the largest species, and is mainly found in the rainforest regions of Africa. Description Adult flower chafers are usually brightly coloured beetles, often metallic, and somewhat flattened in shape. The insertions of the Antenna (biology), antennae are visible from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetoniinae
Flower chafers are a group of scarab beetles comprising the subfamily Cetoniinae. Many species are diurnal and visit flowers for pollen and nectar, or to browse on the petals. Some species also feed on fruit. The group is also called fruit and flower chafers, flower beetles and flower scarabs. There are around 4,000 species, many of them still undescribed. Ten tribes are presently recognized: Cetoniini, Cremastocheilini, Diplognathini, Goliathini, Gymnetini, Phaedimini, Schizorhinini, Stenotarsiini, Taenioderini, and Xiphoscelidini. The former tribes Trichiini and Valgini were elevated in rank to subfamily. The tribe Gymnetini is the biggest of the American tribes, and Goliathini contains the largest species, and is mainly found in the rainforest regions of Africa. Description Adult flower chafers are usually brightly coloured beetles, often metallic, and somewhat flattened in shape. The insertions of the antennae are visible from above, while the mandibles and lab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Dupont
Richard Henry Puech Dupont or Henry Dupont (1 November 1798 – 2 July 1873) was a French naturalist and a collector and trader in specimens of beetles and birds. He was the younger brother of the naturalist Leonard Dupont and many references in old French works merely mention Monsieur Dupont which has led to confusion between the two although in some works Leonard is referred to as the senior Dupont senior (aîné) and Henry as the younger (jeune). For the larger part Henry was into beetles and entomology while Leonard was more associated with birds. Many species of beetle were named by Henry Dupont and some are named after him by others. Henry or Henri was born at Bayeux on 1 November 1798 (Leonard on 10 January 1796) to wig-maker Jean-Antoine Puech dit Dupont and his wife Marie-Francoise Badin. They were baptized with the surname Puech dit Dupont but in later life they were known only as Dupont. Both the boys (a third died young) were interested in natural history and their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Selection
Sexual selection is a mechanism of evolution in which members of one sex mate choice, choose mates of the other sex to mating, mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection). These two forms of selection mean that some individuals have greater reproductive success than others within a population, for example because they are more Animal sexual behaviour, attractive or prefer more attractive partners to produce offspring. Successful males benefit from frequent mating and monopolizing access to one or more fertile females. Females can maximise the return on the energy they invest in reproduction by selecting and mating with the best males. The concept was first articulated by Charles Darwin who wrote of a "second agency" other than natural selection, in which competition between mate candidates could lead to speciation. The theory was given a mathematical basis by Ronald Fisher in the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John O
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died ), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (died ), one of the twelve apostles of Jesus Christ * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope John (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prothorax
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum ( ventral), and the propleuron (lateral) on each side. The prothorax never bears wings in extant insects (except in some cases of atavism), though some fossil groups possessed wing-like projections. All adult insects possess legs on the prothorax, though in a few groups (e.g., the butterfly family Nymphalidae) the forelegs are greatly reduced. In many groups of insects, the pronotum is reduced in size, but in a few it is hypertrophied, such as in all beetles ( Coleoptera). In most treehoppers (family Membracidae, order Hemiptera), the pronotum is expanded into often fantastic shapes that enhance their camouflage or mimicry. Similarly, in the Tetrigidae, the pronotum is extended backward to cover the flight wings, supplanting the function of the tegmina. See also * Glossary of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scutellum (insect)
The scutellum is the posterior portion of either the mesonotum or the metanotum of an insect thorax; however, it is used almost exclusively in the former context, as the metanotum is rather reduced in most insect groups. In the Hemiptera, and some Coleoptera, the scutellum is a small triangular plate behind the pronotum and between the forewing bases. In Diptera and Hymenoptera Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, in addition to over 2,000 extinct ones. Many of the species are parasitic. Females typi ..., the scutellum is nearly always distinct, but much smaller than (and immediately posterior to) the mesoscutum. File:Heteroptera morphology-d.svg, 26 = Heteroptera scutellum File:Housefly anatomy-key.svg, 6 = Diptera scutellum File:Coléoptère schématique.jpg, 9 = Coleoptera scutellum File:Scheme ant worker anatomy-numbered.svg, 10 = Formicidae scutel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Reid Davys Bell
Thomas Reid Davys Bell (2 May 1863 – 24 June 1948) was a lepidopterist, naturalist and forest officer who worked in India. Bell collected natural history specimens, studied birds and the life histories of butterflies and moths in his spare time. His large collection of entomological specimens are held at the Natural History Museum, London. A number of species have been named from his collections, several commemorating him. Life and work Bell was born in Bandon, Cork. Thomas was the youngest in a family of twelve. His mother left Ireland and moved to Dresden where he received his early education.Rao, BR Subba (1998) History of Entomology in India. Institution of Agricultural Technologists, Bangalore. He went to London for tuitions at Wren and Gurney to enter the Indian Civil Services but failed. He later wrote entrance exams to Sandhurst and Woolwich and passed but decided not to join the army. He passed the entrance for the Indian Woods and Forest Services, trained at Nancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Of Asia
Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described arthropods and 25% of all known animal species; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. However, the number of beetle species is challenged by the number of species in Fly, dipterans (flies) and hymenopterans (wasps). Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
