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Urtication
Urticating hairs or urticating bristles are one of the primary defense mechanisms used by numerous plants, almost all New World tarantulas, and various lepidopteran caterpillars. ''Urtica'' is Latin for "nettle" (stinging nettles are in the genus ''Urtica''), and bristles that urticate are characteristic of this type of plant, and many other plants in several families. This term also refers to certain types of barbed bristles that cover the dorsal and posterior surface of a tarantula's or caterpillar's abdomen. Many tarantula species eject bristles from their abdomens, directing them toward potential attackers. These bristles can embed themselves in the other animal's skin or eyes, causing physical irritation, usually to great discomfort. The term "hairs" is technically a misnomer, as only mammals possess true hairs. The hairs on arthropods are called setae. In plants The most common form of urticating hairs in plants are typified by nettles, which possess sharp-pointed hollow b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grammostola
''Grammostola'' is a genus of South American tarantulas that was first described in text by Eugène Louis Simon in 1892. These medium- to large-sized spiders are native to tropical South America, and are usually brown in color, with pinkish or orangish-red hairs. The very docile Chilean rose tarantula (''Grammostola rosea'') is popular as a beginner's spider among tarantula enthusiasts.Muller-Esnault, Susan, DVM. "Rose Hair Tarantulas or Chilean Rose Hair" (2008). http://www.critterology.com/rose_hair_tarantulas_or_chilean_rose_hair-192.html ''Grammostola'' as a pet The Chilean rose tarantula (''Grammostola rosea'') is a common pet, as its behavior is generally docile and its venom is very mild. It needs to be kept dry and dislikes being wet (its natural habitat is one of the driest deserts on earth). If the substrate is too wet, it will stand "on tiptoes" in discomfort, or climb the sides of its enclosure, risking fall and injury. It feeds on other invertebrates. Its attribute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombycidae
The Bombycidae are a family of moths known as silkworm moths. The best-known species is ''Bombyx mori'' (Linnaeus), or domestic silk moth, native to northern China and domesticated for millennia. Another well-known species is '' Bombyx mandarina'', also native to Asia. Taxonomy The family was recently severely restricted, and currently contains only one or two subfamilies, the Bombycinae and Epiinae (previously the tribe Epiini). The former subfamilies Oberthueriinae and Prismostictinae have been placed as subjective junior synonyms of Endromidae. The former subfamilies Apatelodinae and Phiditiinae have been reinstated as separate families. Genera This list is provisional. ''Epia'' may also be placed within Apatelodidae, along with '' Tamphana''. Some genera were formerly placed in Apatelodinae, such as '' Anticla'' and '' Quentalia''.Hamilton, C.A., St Laurent, R.A., Dexter, K. et al. Phylogenomics resolves major relationships and reveals significant diversification rate shifts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mucous Membrane
A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. It consists of one or more layers of epithelial cells overlying a layer of loose connective tissue. It is mostly of endodermal origin and is continuous with the skin at body openings such as the eyes, eyelids, ears, inside the nose, inside the mouth, lips, the genital areas, the urethral opening and the anus. Some mucous membranes secrete mucus, a thick protective fluid. The function of the membrane is to stop pathogens and dirt from entering the body and to prevent bodily tissues from becoming dehydrated. Structure The mucosa is composed of one or more layers of epithelial cells that secrete mucus, and an underlying lamina propria of loose connective tissue. The type of cells and type of mucus secreted vary from organ to organ and each can differ along a given tract. Mucous membranes line the digestive, respiratory and rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypodermic Needle
A hypodermic needle (from Greek Language, Greek ὑπο- (''hypo-'' = under), and δέρμα (''derma'' = skin)) is a very thin, hollow tube with one sharp tip. As one of the most important intravenous inventions in the field of drug administration, it is one of a category of medical tools which enter the skin, called sharps. It is commonly used with a syringe, a hand-operated device with a plunger, to Injection (medicine), inject substances into the body (e.g., saline solution, solutions containing various drugs or liquid medicines) or extract fluids from the body (e.g., blood). Large-bore hypodermic intervention is especially useful in catastrophic blood loss or treating Shock (circulatory), shock. A hypodermic needle is used for rapid delivery of liquids, or when the injected substance cannot be ingested, either because it would not be Absorption (pharmacokinetics), absorbed (as with insulin), or because it would harm the liver. It is also useful to deliver certain medica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venom
Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a stinger, in a process called ''envenomation''. Venom is often distinguished from ''poison'', which is a toxin that is passively delivered by being ingested, inhaled, or absorbed through the skin, and ''toxungen'', which is actively transferred to the external surface of another animal via a physical delivery mechanism. Venom has evolved in terrestrial and marine environments and in a wide variety of animals: both predators and prey, and both vertebrates and invertebrates. Venoms kill through the action of at least four major classes of toxin, namely necrosis, necrotoxins and cytotoxins, which kill cells; neurotoxins, which affect nervous systems; myotoxins, which damage muscles; and Hemotoxin, haemotoxins, which disrupt Thrombus, blood clotti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pupae
A pupa (; : pupae) is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago. The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, prothoracicotropic hormone, and ecdysone. The act of becoming a pupa is called pupation, and the act of emerging from the pupal case is called eclosion or emergence. The pupae of different groups of insects have different names such as ''chrysalis'' for the pupae of butterflies and ''tumbler'' for those of the mosquito family. Pupae may further be enclosed in other structures such as cocoons, nests, or shells. Position in life cycle The pupal stage follows the larval stage, or in some cases a prepupal stage, and precedes adulthood ('' imago'') in insects with compl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturniidae
Saturniidae, members of which are commonly named the saturniids, is a family of Lepidoptera with an estimated 2,300 described species. The family contains some of the largest species of moths in the world. Notable members include the emperor moths, royal moths, and giant silk moths (or wild silk moths). Adults are characterized by large, lobed wings, heavy bodies covered in hair-like scales, and reduced mouthparts. They lack a frenulum, but the hindwings overlap the forewings to produce the effect of an unbroken wing surface. Saturniids are sometimes brightly colored and often have translucent eyespots or "windows" on their wings. Sexual dimorphism varies by species, but males can generally be distinguished by their larger, broader antennae. Most adults have wingspans between , but some tropical species such as the Atlas moth (''Attacus atlas'') may have wingspans up to . Together with certain Noctuidae, Saturniidae contains the largest Lepidoptera and some of the larges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphalidae
The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called brush-footed butterflies or four-footed butterflies, because they are known to stand on only four legs while the other two are curled up; in some species, these forelegs have a brush-like set of hairs, which gives this family its other common name. Many species are brightly coloured and include popular species such as the emperors, monarch butterfly, admirals, tortoiseshells, and fritillaries. However, the under wings are, in contrast, often dull and in some species look remarkably like dead leaves, or are much paler, producing a cryptic effect that helps the butterflies blend into their surroundings. Nomenclature Rafinesque i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notodontidae
Notodontidae is a family of moths with approximately 3,800 known species. The family was described by James Francis Stephens in 1829. Moths of this family are found in all parts of the world, but they are most concentrated in tropical areas, especially in the New World (Miller, 1992). Species of this family tend to be heavy-bodied and long-winged, the wings held folded across the back of the body at rest. They rarely display any bright colours, usually being mainly grey or brown, with the exception of the subfamily Dioptinae (Grimaldi and Engel, 2005). These features mean they rather resemble Noctuidae The Noctuidae, commonly known as owlet moths, cutworms or armyworms, are a family (biology), family of moths. Taxonomically, they are considered the most controversial family in the superfamily Noctuoidea because many of the clades are constantly ... although the families are not closely related. The adults do not feed. Many species have a tuft of hair on the trailing edge of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noctuidae
The Noctuidae, commonly known as owlet moths, cutworms or armyworms, are a family (biology), family of moths. Taxonomically, they are considered the most controversial family in the superfamily Noctuoidea because many of the clades are constantly changing, along with the other families of the Noctuoidea. It was considered the largest family in Lepidoptera for a long time, but after regrouping Lymantriinae, Catocalinae and Calpinae within the family Erebidae, the latter holds this title now. Currently, Noctuidae is the second largest family in Noctuoidea, with about 1,089 List of noctuid genera, genera and 11,772 species. This classification is still contingent, as more changes continue to appear between Noctuidae and Erebidae. Description Adult: Most noctuid adults have wings with a variety of shades of browns, grays, and other varied shades and colourations but some subfamilies, such as Acronictinae and Agaristinae, are very colorful, especially those from tropical regions (e.g. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalopygidae
The flannel moths or crinkled flannel moths (scientific name Megalopygidae) are a family of insects. Distribution and habitat There is only one species of Megalopyge in the eastern United States, although there are several throughout the Neotropics. Only five species of the family are known to exist in Florida: three species of Lagoa and one species each of Megalopyge and Norape. While 236 species of Megalopyge are found from Mexico to Argentina, only 11 species have been identified in North America north of Mexico. Only the New World is home to the Megalopygae. Life cycle and behavior Adult flannel moths are stout-bodied, and very hairy. Females have thin antennae while males' are feather-like. Larvae are called puss caterpillars and, with their long hairs, resemble cotton balls. They are eaten by green lacewing insects and the ''Anolis'' lizards. They have venomous spines that can cause a painful sting and inflammation lasting for several days. In some cases, the sting may ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limacodidae
The Limacodidae or Eucleidae are a family of moths in the superfamily Zygaenoidea or the Cossoidea;Scoble, M.J. (1992). ''The Lepidoptera: Form, Function and Diversity.'' Oxford University Press. the placement is in dispute. They are often called slug moths because their caterpillars bear a distinct resemblance to slugs. They are also called cup moths because of the shape of their cocoons. The larvae are often liberally covered in protective stinging hairs, and are mostly tropical, but occur worldwide, with about 1800 described species and probably many more as yet undescribed species. Description Moths They are small, hairy moths, with reduced or absent mouthparts and fringed wings. They often perch with their abdomens sticking out at 90° from their thoraces and wings. North American moths are mostly cryptic browns, sometimes marked with white or green, but the hag moth mimics bees.Wagner, D.L. (2005). ''Caterpillars of Eastern North America.'' Princeton University Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
