35-474: The geometer moths are moths belonging to the family Geometridae of the insect order Lepidoptera , the moths and butterflies. Their scientific name derives from the Ancient Greek geo γεω (derivative form of γῆ or γαῖα "the earth"), and metron μέτρον "measure" in reference to the way their larvae, or inchworms , appear to measure the earth as they move along in a looping fashion. Geometridae
70-549: A group of insects that includes all members of the order Lepidoptera that are not butterflies . They were previously classified as suborder Heterocera, but the group is paraphyletic with respect to butterflies (suborder Rhopalocera) and neither subordinate taxon is used in modern classifications. Moths make up the vast majority of the order. There are approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal , although there are also crepuscular and diurnal species. While
105-412: A range of sizes occur, from 10–50 mm (0.39–1.97 in), and a few (e.g., Dysphania species) reach an even larger size. They have distinctive paired tympanal organs at the base of the abdomen (these are absent in flightless females). The placement of the example species follows a 1990 systematic treatment; it may be outdated. Subfamilies are tentatively sorted in a phylogenetic sequence, from
140-769: Is a significant food resource in southern Africa . Another saturniid used as food is the cavorting emperor ( Usta terpsichore ). In one country alone, Congo , more than 30 species of moth larvae are harvested. Some are sold not only in the local village markets, but are shipped by the ton from one country to another. Nocturnal insectivores often feed on moths; these include some bats , some species of owls and other species of birds . Moths also are eaten by some species of lizards , amphibians , cats , dogs , rodents , and some bears . Moth larvae are vulnerable to being parasitized by Ichneumonidae . Baculoviruses are parasite double-stranded DNA insect viruses that are used mostly as biological control agents. They are members of
175-476: Is a very large family, containing around 23,000 described species; over 1400 species from six subfamilies are indigenous to North America alone. A well-known member is the peppered moth , Biston betularia , which has been the subject of numerous studies in population genetics . Several other geometer moths are notorious pests . The name "Geometridae" ultimately derives from Latin geometra from Greek γεωμέτρης ("geometer", "earth-measurer"). This refers to
210-536: Is considered more effective, but there are concerns over its effects on human health. Despite being commonly thought to be undertaken by all moths, only the larvae of several moth species eat animal fibres, creating holes in articles of clothing, in particular those made of wool. Most species do not eat fabrics, and some moth adults do not even eat at all. Some, like the Luna , Polyphemus , Atlas , Promethea , cecropia , and other large moths do not have mouth parts. This
245-400: Is currently unknown. One hypothesis is called celestial or transverse orientation. By maintaining a constant angular relationship to a bright celestial light, such as the moon, they can fly in a straight line. Celestial objects are so far away that, even after travelling great distances, the change in angle between the moth and the light source is negligible; further, the moon will always be in
280-470: Is possible because they live off the food stores from when they were a caterpillar, and only live a short time as an adult (roughly a week for some species). Many species of adult moths do however eat: for instance, many will drink nectar . Items of fabric infested by clothes moth larvae may be treated by freezing them for several days at a temperature below −8 °C (18 °F). Some moths are farmed for their economic value. The most notable of these
315-413: Is the silkworm , the larva of the domesticated moth Bombyx mori . It is farmed for the silk with which it builds its cocoon . As of 2002 , the silk industry produces more than 130 million kilograms of raw silk, worth about 250 million U.S. dollars , each year. Not all silk is produced by Bombyx mori . There are several species of Saturniidae that also are farmed for their silk, such as
350-585: The Baculoviridae , a family that is restricted to insects. Most baculovirus isolates have been obtained from insects, in particular from Lepidoptera. There is evidence that ultrasound in the range emitted by bats causes flying moths to make evasive maneuvers. Ultrasonic frequencies trigger a reflex action in the noctuid moth that causes it to drop a few centimeters or inches in its flight to evade attack, and tiger moths can emit clicks to foil bats' echolocation. The fungus Ophiocordyceps sinensis infects
385-509: The Carboniferous period, but only evolved their characteristic proboscis alongside the rise of angiosperms in the Cretaceous period. The modern English word moth comes from Old English moððe ( cf. Northumbrian mohðe ) from Common Germanic (compare Old Norse motti , Dutch mot , and German Motte all meaning 'moth'). Its origins are possibly related to
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#1732869264767420-515: The Sterrhinae – or might even be considered a separate family of Geometroidea . As regards the Archiearinae, some species that were traditionally placed therein actually seem to belong to other subfamilies; altogether it seems that in a few cases, the prolegs which were originally lost in the ancestral geometer moths re- evolved as an atavism . Larentiinae – about 5,800 species, includes
455-464: The butterflies form a monophyletic group, the moths, comprising the rest of the Lepidoptera, do not. Many attempts have been made to group the superfamilies of the Lepidoptera into natural groups, most of which fail because one of the two groups is not monophyletic: Microlepidoptera and Macrolepidoptera , Heterocera and Rhopalocera , Jugatae and Frenatae, Monotrysia , and Ditrysia . Although
490-511: The temperate regions of the world. They are generally considered a subfamily of the geometer moth family (Geometridae) and are divided into a few large or good-sized tribes , and numerous very small or even monotypic ones which might not always be valid. Well-known members are the "pug moths" of the Eupitheciini and the "carpets", mainly of the Cidariini and Xanthorhoini . The subfamily
525-552: The tympanal organ and the lack of a gnathos – with the Sterrhinae which are either somewhat less distant from other geometer moths or are part of the same distinct lineage; the Lythriini were until recently placed in the Larentiinae but are apparently Sterrhinae. But the Larentiinae characteristically tend to have much longer foreleg tarsi and hindleg tibiae than their relatives, and also have hairy or toothed extensions on
560-748: The Old English maða meaning ' maggot ' or from the root of midge which until the 16th century was used mostly to indicate the larva , usually in reference to devouring clothes. Moth larvae, or caterpillars , make cocoons from which they emerge as fully grown moths with wings. Some moth caterpillars dig holes in the ground, where they live until they are ready to turn into adult moths. Moths evolved long before butterflies; moth fossils have been found that may be 190 million years old. Both types of Lepidoptera are thought to have co-evolved with flowering plants , mainly because most modern species, both as adults and larvae, feed on flowering plants. One of
595-613: The ailanthus moth ( Samia cynthia group of species), the Chinese oak silkmoth ( Antheraea pernyi ), the Assam silkmoth ( Antheraea assamensis ), and the Japanese silk moth ( Antheraea yamamai ). The larvae of many species are used as food , particularly in Africa, where they are an important source of nutrition. The mopane worm, the caterpillar of Gonimbrasia belina , from the family Saturniidae,
630-524: The background or resembling twigs. When disturbed, many inchworms stand erect and motionless on their prolegs, further increasing this resemblance. Some have humps or filaments, or cover themselves in plant material. They are gregarious and are generally smooth. Some eat lichen, flowers, or pollen, while some, such as the Hawaiian species of the genus Eupithecia , are carnivorous. Certain destructive inchworm species are referred to as "cankerworms". In 2019 ,
665-440: The earliest known species that is thought to be an ancestor of moths is Archaeolepis mane . Its fossil fragments show scaled wings that are similar to caddisflies in their veining. Some moths, particularly their caterpillars , can be major agricultural pests in many parts of the world. Examples include corn borers and bollworms . The caterpillar of the spongy moth ( Lymantria dispar ) causes severe damage to forests in
700-728: The families Erebidae and Sphingidae , may be the key pollinators for some flowering plants in the Himalayan ecosystem. The roles of moths as pollinators have been studied less frequently than those of diurnal pollinators, but recent studies have established that moths are important, but often overlooked, nocturnal pollinators of a wide range of plants. Some researchers say it is likely that many plants thought to be dependent on bees for pollination also rely on moths, which have historically been less observed because they pollinate mainly at night. Moths frequently appear to circle artificial lights. The reason for this behavior (positive phototaxis )
735-515: The family Tineidae are commonly regarded as pests because their larvae eat fabric such as clothes and blankets made from natural proteinaceous fibers such as wool or silk . They are less likely to eat mixed materials containing some artificial fibers. There are some reports that they may be repelled by the scent of wood from juniper and cedar , by lavender , or by other natural oils; however, many consider this unlikely to prevent infestation. Naphthalene (the chemical used in mothballs )
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#1732869264767770-554: The first geometrid caterpillar in Baltic amber was discovered by German scientists. Described under Eogeometer vadens , it measured about 5 mm (0.20 in) and was estimated to be 44 million years old, dating back to the Eocene epoch . It was described as the earliest evidence for the subfamily of Ennominae , particularly the tribe Boarmiini . Many geometrids have slender abdomens and broad wings which are usually held flat with
805-492: The hindwings visible. As such, they appear rather butterfly -like, but in most respects they are typical moths. The majority fly at night. They possess a frenulum to link the wings, and the antennae of the males are often feathered. They tend to blend into the background, often with intricate, wavy patterns on their wings. In some species, females have reduced wings (e.g. winter moth and fall cankerworm ). Most are of moderate size, about 3 cm (1.2 in) in wingspan, but
840-434: The impression that it measures its journey. The caterpillars are accordingly called "loopers", "spanworms", or "inchworms" after their characteristic looping gait. The cabbage looper and soybean looper are not inchworms but caterpillars of a different family. In many species of geometer moths, the inchworms are about 25 mm (1.0 in) long. They tend to be green, grey, or brownish and hide from predators by fading into
875-641: The larvae of many different species of moths. Moths, like butterflies, bees and other more popularly recognized pollinating insects, serve an essential role as pollinators for many flowering plants, including species that bees do not visit. Nocturnal moths fly from flower to flower to feed on nectar during the night much as their diurnal relatives do during the day. A study conducted in the UK found moths dusted with pollen from 47 different plant species, including seven species largely ignored by bees. Some studies indicate that certain species of moths, such as those belonging to
910-425: The light source. Studies have found that light pollution caused by increasing use of artificial lights has either led to a severe decline in moth population in some parts of the world or has severely disrupted nocturnal pollination. [REDACTED] Quotations related to Moths at Wikiquote Larentiinae Larentiinae is a subfamily of moths containing roughly 5,800 species that occur mostly in
945-425: The means of locomotion of the larvae or caterpillars , which lack the full complement of prolegs seen in other caterpillars, with only two or three pairs at the posterior end instead of the usual five pairs. Equipped with appendages at both ends of the body, a caterpillar clasps with its front legs and draws up the hind end, then clasps with the hind end (prolegs) and reaches out for a new front attachment, creating
980-576: The most basal to the most advanced. Traditionally, the Archiearinae were held to be the most ancient of the geometer moth lineages, as their caterpillars have well-developed prolegs . However, it now seems that the Larentiinae are actually older, as indicated by their numerous plesiomorphies and DNA sequence data. They are either an extremely basal lineage of the Geometridae – together with
1015-487: The northeastern United States, where it is an invasive species . In temperate climates, the codling moth causes extensive damage, especially to fruit farms. In tropical and subtropical climates, the diamondback moth ( Plutella xylostella ) is perhaps the most serious pest of brassicaceous crops. Also in sub-Saharan Africa , the African sugarcane borer is a major pest of sugarcane, maize , and sorghum . Several moths in
1050-520: The prolegs but most are reduced. Oenochrominae – in some treatments used as a " wastebin taxon " for genera that are difficult to place in other groups Alsophilinae – a few genera, defoliators of trees, might belong in the Ennominae, tribe Boarmiini Ennominae – about 9,700 species, including some defoliating pests, global distribution Geometridae genera incertae sedis include: Fossil Geometridae taxa include: Moth Moths are
1085-417: The pug moths, mostly temperate, might be a distinct family. Sterrhinae – about 2,800 species, mostly tropical, might belong to same family as the Larentiinae. Desmobathrinae – pantropical Geometrinae – emerald moths, about 2,300 named species, most tropical Archiearinae – twelve species; holarctic, southern Andes and Tasmania, though the latter some seem to belong to the Ennominae, larvae have all
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1120-458: The rules for distinguishing moths from butterflies are not well established, one very good guiding principle is that butterflies have thin antennae and (with the exception of the family Hedylidae ) have small balls or clubs at the end of their antennae. Moth antennae are usually feathery with no ball on the end. The divisions are named by this principle: "club-antennae" (Rhopalocera) or "varied-antennae" (Heterocera). Lepidoptera first evolved during
1155-441: The upper part of the visual field, or on the horizon. When a moth encounters a much closer artificial light and uses it for navigation, the angle changes noticeably after only a short distance, in addition to being often below the horizon. The moth instinctively attempts to correct by turning toward the light, thereby causing airborne moths to come plummeting downward, and resulting in a spiral flight path that gets closer and closer to
1190-538: The upperside sections of the transtilla ; their caterpillars often have the abdominal prolegs reduced already (as is typical for the more advanced geometer moths), and the Larentiinae's tympanal organs have a unique and characteristic structure. Cataclysmiini Chesiadini Erateinini Eupitheciini Hydriomenini Larentiini Melanthiini Operophterini Perizomini Rheumapterini Solitaneini Trichopterygini Xanthorhoini Several genera have hitherto not been definitely assigned to
1225-410: Was described by Philogène Auguste Joseph Duponchel in 1845. Morphological and DNA sequence data indicate that they are a very ancient lineage of geometer moths; they might even be distinct enough to warrant elevation to full family status in the superfamily Geometroidea . They share numerous plesiomorphic traits – for example at least one areola in the forewing, a hammer-shaped ansa of
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