1997. Tegeticula yuccasella. Females use the tentacles of their maxillary palps to collect and compact the dense, sticky pollen from yucca flowers. Soapweed yucca (Yucca glauca) is a common plant in the Great Plains but also occurs in dry sandy and loess soils in Iowa, Missouri, and Arkansas. Prodoxids are members of the superfamily Incurvarioidea. P. quinquepunctella (eastern form) (13), is larger, white, and can easily be mistaken for some members of the Tegeticula yuccasella complex (14). The moth larvae feed exclusively on developing yucca seeds. In the Southwest, one of their most iconic partners is the Joshua tree. Here's some links if you want to download a whole group. “Yuccas, Yucca Moths, and Coevolution: A Review.”, Chase, M.W. This moth species is an obligate stem borer on the stalks of Soapweed. 210044.00 – 0200.1 – Prodoxus decipiens – Bogus Yucca Moth – Riley, 1880 Photographs are the copyrighted property of each photographer listed. North American Moth Photographers Group at the Mississippi Entomological Museum at Mississippi State University, 210044.00-0200.1. Contact … As a footnote, there are no common vernacular names for the listed species of moths, other than lumping them together and calling them “yucca moths.” The moth-plant relationship goes back at least 40 Mya (16). In Canada, Y. glauca and its pollinator moth Tegeticula yuccasella are both protected species. Yuccas have a very specialized, mutualistic pollination system, being pollinated by yucca moths (family Prodoxidae); the insect transfers the pollen from the stamens of one plant to the stigmaof another, and at the same time lays an egg in the flower; the moth larva then feeds on some of the developing seeds, always leaving enough seed to perpetuate the species. The yucca-yucca moth pollination mutualism is an excellent model in this context as there have been two origins of cheating from within the yucca moth lineage. The moth is equally dependent on the yucca. An important plant for wildlife, it provides food and nesting for small mammals, birds, and reptiles. All species of Prodoxus complete their entire metamorphosis inside the host plant tissue, and only emerge as adults, and in some species after many years of larval diapause (12). This variety of Yucca is among the most cold-hardy and landscape ready of the species. Over millions of years of coevolution, the yucca moth has come to depend exclusively on the yucca plant blossoms as a repository for eggs and on the seeds as a food source for its larvae, and the yucca plant has come to depend exclusively on the moth as an agent for pollination. It has a wingspan of 18 to 28 mm, and females are slightly larger than males. Yucca Wild Buckwheat Eriogonum plumatella Eriogonum plumatella + Added; 6 Banana Yucca Yucca baccata var. Larval survival is dependent on the mutualistic relationship between the Soapweed and its pollinator Yucca Moth. Biologists have only recently determined that almost every species of yucca has its own species of yucca moth; some yuccas have two moth species. Larval survival is dependent on the mutualistic relationship between … It is a host plant for the Yucca Moth. Studies in coevolution demonstrate how increased genetic variance between two different organisms with strong interactions can result in increased fitness for both. Such a tight mutualism has risks for both partners. whitish moth that blends well with the color of the yucca blossoms where it spends most of its brief adult life Usually, but not always, a species complex has a common ancestor. These small moths are typically white or gray and have relatively prominent maxillary and labial palpi that are shorter than the proboscis. The female moth then flies to another yucca flower immediately going to the flower’s ovary where the moth uses her ovipositor to insert eggs. Several yucca species are protected in the states in which they occur. The T. yuccasella complex is now composed of 10 newly described yucca pollinator species (altiplanella, baccatella, carnerosanella, cassandra, elatella, maderae, mojavella, rostratella, superficiella, and treculeanella) and two non-pollinating “cheater” species (intermedia and corruptrix) that oviposit directly into yucca fruit (10). Bees - Discover Life. Compa… Each species seems to pollinate a different species of yucca, so these relationships are mostly exclusive. Only true yucca moths are known to pollinate yucca flowers. Yuccas are actively pollinated by female moths in the genus Tegeticula that also lay eggs into the flowers. Greya subalba. But greya moths lack the specialized behaviors and morphological structures characteristic of true pollinating yucca moths (15). Most Prodoxus species are smaller than Tegeticula, but one species, P. decipiens (elevated from Syn. They are famous for an old and intimate relationship with Yucca plants and are their obligate pollinators as well as herbivores. Joshua trees are part of a highly specialized pollination relationship with yucca moths. This moth species is an obligate stem borer on the stalks of Soapweed. Their bore holes are a common sight on trunks of such plants as the soaptree yucca. Yuccas are perennial shrubs and trees currently placed by many authorities into the family Asparagaceae and subfamily Agavoideae (3). Additional Sources of Information Related to "Insects". Likewise, Prodoxus use yucca as a host but without offering pollination services. Pellmyr, Olle. Yuccas are only pollinated by th… The different closely related species, all of which are generally referred to as yucca moths, are difficult to distinguish without examination under a … Each spring, adult moths emerge from underground cocoons and the males and females meet up with each other on yucca plants to mate. Tegeticula is one of the two genera of true yucca moth pollinators of yuccas. At the same time, Riley significantly contributed to the general knowledge of insect biology with studies of the 13 and 17- year cicadas, and the pollination of yuccas---a subject of special interest to Charles Darwin (1). Charles Valentine Riley (1843-1895) was a British-born American entomologist and talented natural history artist. The adults are small with a wingspan between 4 and 16 mm and are usually dull colored, white, or gray. Species: spp. Information on this Species is incomplete... Alberta Lepidopterists' Guild. One species, Parategeticula pollenifera, can be found in the pine-oak forests in southwestern Arizona, southwestern New Mexico, and Veracruz, Mexico, and is known to coexist with a member of the Tegeticula yuccasella complex. ; Reveal, J.L. Happy National Moth Week, July 18-26, 2020! Two of the three yucca moth genera in particular, Tegeticula and Parategeticula, have an obligate pollination mutualism with yuccas. Engelmann asked then Missouri State Entomologist, Charles Riley, to investigate the relationship between moths and yuccas. Yucca Moths (Tegeticula yuccasella) are small white moths with a wingspan of 18-27.5 mm. When the growing larvae have finished feeding on seeds, they burrow exit holes through the tissues of the fruit, drop to the ground, and burrow into the soil to complete metamorphosis within a cocoon (7). Prodoxidae. The moths then fly to another flower, where they use their tentacles to deposit the pollen onto the floral stigma – the receptive surface where the pollen needs to land in order to fertilize the flower. In the central United States, soapweed yucca (Yucca glauca) is pollinated by a moth known as Tegeticulla yuccasella. © Copyright 2021, Sibley Nature Center. Information on this Species is incomplete... Bumble Bee Species Accounts at Montana Entomology Collection, Field Guide to Common Western Grasshoppers, Native Wildflowers and Bees of Western Montana, Natural Heritage MapViewer (Statewide Database of Animal Observations), North American Dragonflies - Slater Museum of Natural History, USDA Grasshoppers: their biology, identification, and management, Xerces Society for Invertebrate Conservation. https://en.wikipedia.org/w/index.php?=Yucca&oldid=954950506, https://en.wikipediaorg/w/index.php?title=Species_complex&oldid=957323164, http://tolweb.org/Tegeticula/12419/1997.01.13, https://tolweb.org/Prategeticula_pollenifera/12420/1996.01.01, http://tolweb.org/Prodoxus/12422/1997.01.13, http://tolweb.org/Prodoxus_quinquepunctellus/12428/1996.01.01, http://tolweb.org/Prodoxidae/11872/1997.01.13, Pellmyr, Olle. Most of the Tegeticula and Parategeticula are obligate pollinators, but two species of Tegeticula have circumvented the act of pollination and become cheaters by taking advantage of Yucca as a host plant, but without contribution. The pistil (female part) of each flower ends in a three-lobed stigma.In order for pollination to occur, masses of pollen must be forced down into this central stigmatic hole. They are most easily identified by their presence within Yuccaflowers. Ecologically, yuccas are adapted to a wide range of habitats from rocky deserts, grassland prairies, mountains, light woodlands’ coastal sands, and semi-arid subtropical and semi-temperate zones (4). Parategeticula are the other mutualistic pollinators of various Yucca species. Prodoxus moths completely lack tentacular appendages on the maxillary palps possessed by the pollinating genera. baccata Yucca baccata var. Historically, three species of Tegeticula have been recognized, and one species, T. yuccasella, has been regarded as the pollinator of all but two species of Yucca. Even though they belong to two different kingdoms in the universe of life on our planet, the yucca moth species known as "Tegeticula yuccasella" and the yucca plant species known, popularly, as the "soaptree yucca" and, scientifically, as the "Yucca elata" have forged an inseparable bond. Systematic revision of the yucca moths in the. The Five-spotted Bogus Yucca Moth is known from only two sites in Canada, one of which was discovered in 2011. Although dozens of other yucca moth and yucca plant species have similar relationships, the Tegeticula yuccasella andYucca elata,in the United States' … Like Tegeticula, the females of P. pollenifera have maxillary tentacles used for gathering pollen and actively pollinate its host plants, but unlike Tegeticula, the females possess a blunt ovipositor used to prepare a groove, usually in a flower pedicel, and lay a row of eggs. Migration and Dispersal Look for this PDF icon at the top of each page as you search and browse. Each of these species may be independently viewed, and a dichotomous key to the males and females of the Tegeticula yuccasella complex is available on the Tree of Life Web Project (http://tolweb.org), but the key is written more for the professional lepidopterist with the knowledge and training in insect anatomy and the dissection, preparation, and microscopic examination of insect genitalia. baccata. There are about 49 species in the genus Yucca covering a large area of the Americas throughout Mexico extending into Guatemala and northward through Baja California and into the southwestern United States and Great Plains to southern Alberta, Canada. and Fay, M.F. Some of them have larvae that feed on developing seeds. The Five-spotted Bogus Yucca Moth is known from only two sites in Canada, one of which was discovered in 2011. The genus Prodoxus are the non-pollinating “bogus yucca moths” that coexist on yuccas with the pollinating yucca moths, Tegeticula and Parategeticula. Among them are two non-pollinating species of 'cheater yucca moths'. They co-evolved over millions of years, and maintain a mutual dependence. The adults are small, diurnal, and have tiny spines covering their wings. We depend on donations to keep Butterflies and Moths of North America online and freely available. When the eggs hatch, the larvae feed on the developing seeds within the fruit; fortunately, there are more seeds than the larvae can eat. The early developmental stages of the moth (the larvae, or caterpillars), are found inside Yucca flowers (also known as Soapweed), where they feed on developing seeds. She scrapes pollen from the flower’s anthers, packing it into a ball carried beneath her head. Yucca moths are members of the family Prodoxidae and the genus Tegeticula. The Yucca Moth is typically 0.4 inches to 0.5 inches (12mm to 13mm) in size and has the following descriptors / identifiers: white, black, gray, white, speckled, spotted, dots, flying, garden pest . Recently the species traditionally called T. yuccasella has been identified as being a complex of at least 13 species, many of which have very distinctive biology. The word "coevolution" speaks to organisms or systems that have interacted in ways that have influenced their evolution over time. The yucca plant is dependent upon the yucca moth for its survival and perpetuation of yucca plants. North American Moth Photographers Group North American Stoneflies Odonata Central Orthoptera of the Northern Great Plains Orthoptera Species File Online Pacific Northwest Moths Singing Insects of North America (SINA) Trichoptera World Checklist 1999. They are small, white, and grub-like, turning pink to dark red with age. The young larvae bore into the young fruit of Y. schottii and Y. elephantipella forming galls that replace several seeds. William E. Ferguson. Some species are accidental pollinators when carrying host plant pollen on their bodies. She may lay more eggs in the flower’s ovary or yet fly to another flower, but before leaving, she marks the flower with a pheromone signaling to competitors that there are eggs already present for too many eggs will cause the yucca to abort the flower. The narrative follows that when a gravid female yucca moth is ready to lay eggs, she visits a yucca flower to collect pollen with specialized maxillary palp mouthparts called tentacles. Finally the yucca-moth mutualism (living together in such a way as to increase each other’s reproductive success) is vulnerable to exploitation by cheaters: other moth species lay eggs within fertilized flowers but do not pollinate the flower. Since greya moths are closely related to yucca moths they have become the subjects of numerous plant-insect coevolutionary studies. He became the first state entomologist for Missouri primarily to study grasshoppers and the grasshopper plagues of the American West between 1873 and 1877. Yucca moth, (genus Tegeticula), any of four species of insects of the Prodoxidae family of moths (order Lepidoptera). Ecologists long believed that one species of yucca moth (Tegeticula synthetica) pollinates both kinds of Joshua trees. 2. Birds and bats are common predators of … Examples include: 1. Moth larvae feed on the developing seeds. A species complex is a group of closely related, but distinct species of organisms that are so similar in appearance that it is often unclear in how to distinguish between species. If everyone who uses this resource gives a small amount, we could cover our ongoing costs, develop new features, and upgrade the system. The flowers on non-pollinated More recent morphological, molecular, and biological data show that T. yuccasella is instead a large complex of species that differ greatly in their biology (8). Add this Plant to your Plant List Please first create an account and name your plant list so you can access whenever you want. For more than 40 million years there has been a relationship between yucca plants and yucca moths. The tissue in the gall serves as the primary food source for the developing larvae. Alternative Title: Tegeticula. “A Sub-familial Classification for the Expanded Aspergalean Families Amaryllidaceae, Asparagaceae, and Xanthorraceae.”. http://tolweb.org/Prodoxidae/11872/1997.01.13 in The Tree of Life Web Project, http://tolweb.org/. Yucca is also native to some of the islands of the Caribbean. The yucca moth family. I am studying whether the pollination mutualism or the seed-eating antagonism is the major driver in moth specialization. All Rights Reserved. The flowers attract butterflies. Password. Female yucca moth depositing eggs. Certain species of the yucca moth have evolved antagonistic features against the plant and do not assist in the plant's pollination efforts while continuin… Information on this Species is incomplete... Yucca Moth. There are about 12 genera known, five of which occur in western North America with over 50 species (6). As a group, they are smallish and nondescript. You can download select species by searching or when you're on a Taxa page like Class, Order, and Family. In their native habitats, all these yucca species require pollination by a female moth of the genus Tegeticula (Pronuba). The yucca moths have a unique biology and are well-noted for their ancient relationships with Yucca ranging from obligate mutualism to commensalism to antagonism. 3. The moths use these tentacle to collect balls of pollen from yucca flowers. Two genera, Tegeticula and Parategeticula are known as “true yucca moths”; a third genus, Prodoxus, are “bogus yucca moths”, and a fourth genus, the closely related Greya (sometimes called greya moths) are of interest for plant-insect coevolutionary studies. Prodoxus larvae feed on the vegetative parts of yuccas, but each species is highly specific in what tissues are used. Often, rigorous studies of minute morphological details, tests of reproductive isolation, DNA analysis, and molecular biology techniques will be used to draw the dividing lines between species (9). The moth family Prodoxidae is a primitive group, some of which were the first nocturnal moths. Yucca moths (Tegeticula yuccasella) are actually a group of more than a dozen different species of small, rather nondescript whitish-gray bronze tinged moths. The Yucca Moth family is a primitive one that is found worldwide, though not all Prodoxids are involved with yuccas. Top Riley and two California-based assistants, Albert Koebele and D.W. Coquillett are most noted for pioneering the principles of biological pest control, but they also had avocational interests in the microlepidopterans, including yucca moths (2). Yuccas are noted for their evergreen rosettes of tough, sword-shaped leaves and large terminal panicles of whitish flowers. Yucca moths are native to the Southwest, but their range has expanded north and east with yucca plants. Since 2003, researchers have discovered that what they thought was one moth is actually two distinct species, each specially adapted to pollinate one of two subtly different varieties of Joshua tree. We used nuclear and mitochondrial DNA markers to examine genetic structure in a moth population where a cheater species is … Version 13 January 1997. The Yucca Moth is a relatively small, slender-winged brown moth with a whitish head. One species endemic to Mexico, Y. queretaroensis, is listed under CITES Appendix II, which restricts international trade in this rare, endangered plant. It’s a particularly important one because neither the yucca or the moth can survive without the other. Email Address. The key component of yucca moth habitat is the occurrence of yucca plants. Pellmyr, Olle. The eggs of all prodoxids are laid inside plant tissues where the larvae feed in stems, twigs, buds, seeds, or vegetative parts of developing fruits (5). When a female is ready to lay eggs, she first goes to a yucca flower to collect pollen. It lays eggs on each pollinated ovary, and the hatched larvae eat some of the developing seeds. The first recorded observation of yucca moths was made by physician and botanist, George Engelmann in St. Louis in 1872. Only true … Of tough, sword-shaped leaves and large terminal panicles of whitish flowers and have relatively prominent and! Burrow into the family Asparagaceae and subfamily Agavoideae ( 3 ) is one of their maxillary palps collect. Are perennial shrubs and trees currently placed by many authorities into the young fruit of Y. schottii and elephantipella... 1873 and 1877 Xanthorraceae. ” moths ( Tegeticula yuccasella are both protected species moth is known from only two in! 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