Lepidoptera: From the Greek lepidos = scale and ptera = wings. The approximately 200 species of the Micropterigidae, of all living Lepidoptera, are the most similar to the original Jurassic forms. in 1978. Satyr Anglewing (Polygonia satyrus), photo by Ian Lane. has declared a state of emergency. Cabbage White ( Pieris rapae) photo by Ian Lane. Once gypsy moths arrive in an area, they threaten extensive damage to the environment and economy. In I.M. Most adult moths avoid bird predators by flying at night, but bats pose a serious problem for them. Entomological Society of British Columbia Occasional paper No. A pair of tympanal organs may be present (e.g., in Pyraloidea, Geometroidea, Drepanoidea) near the base of the abdomen.
1. Illustrations by L. L. Lucas. These numbers vary depending on the authorities consulted. The huge group Glossata, the “tongued” Lepidoptera, which arose in the early Cretaceous, comprise the rest of the order. Antennae are long and slender, usually partly clothed with scales and composed of two basal segments and a flagellum of 20 to 60 units. Labial palps, usually 3-segmented, are normally well developed and conspicuously extended in front of the face; maxillary palps are normally reduced or absent. It usually flies in May and June, but... Ceanothus Silkmoth ( Hyalophora euryalus). Because the habitat requirements and population fluctuations of many rare species are so well known, Lepidoptera, especially butterflies, have had an important place in the development of invertebrate conservation strategies. There are three pairs of 5-segmented thoracic legs and usually five pairs of abdominal prolegs (segments 3 to 6 and 10). 491 pp. The fossil record is sparse and is best represented by amber inclusions and leaf mines in fossil leaves. Read what HealthLinkBC says about gypsy moth spraying: Review the gypsy moth life stages. In B.C., the gypsy moth eradication strategy involves three main steps: The most common treatment is to spray with the biological insecticide Btk. Gypsy moths are not yet established in B.C. At the species level, this is about 17 % of the world’s known insect fauna. 2001. 1. Note that the winter moth is green and hairless. However, to preserve butterfly populations, butterfly caterpillars should not be disturbed. Evolution, systematics and biogeography. fruit producers.
nurseries without additional inspection certificates. However, estimates suggest that there may be two or three times this number of species in the order. The cerci are lost. Insects of the Yukon. Gypsy moths are defoliators, which means their caterpillars eat the leaves of trees and shrubs. The venation of the Heteroneura (“different veins”) shows variable simplification through fusion and loss of veins, especially in the hind wing. Are big – when fully grown, about the size of your little finger. Downes (eds.). B.C. All these are then classified in the single insect order Lepidoptera. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [www.efauna.bc.ca]. Some caterpillars are carnivorous and eat egg masses of other Lepidoptera (some Pyralidae) or spiders (some Oecophoridae); others kill ant larvae (some Lycaenidae) or scale insects (some Batrachedridae, Oecophoridae, Noctuidae). Some even mimic dangerous vertebrates, such as snakes, using eyespots and other startling markings. The Lepidoptera species have played important roles in biological science. Assessment of species diversity in the Montane Cordillera Ecozone. Another critical innovation in this group is the frenulum that links the hind wing to the fore wing. Melissa Blue, male, (Lycaeides melissa), photo by Werner Eigelsreiter. Canadian and U.S. agencies have striven to find and eradicate this invasive pest. Forelegs are reduced in some butterfly families, the hind legs in some hepialids and geometrids; all legs are vestigial in some female Psychidae. The gypsy moth threatens B.C.
The Lepidoptera is the largest lineage of plant eating organisms, rivalled only by the huge clade of phytophagous (plant eating) beetles(Coleoptera) that includes the weevils, leaf beetles and longhorned beetles, a group of at least 125,000 named species. Volume IV, Arthropoda: Insecta, Part 35. Other methods are also used. Note the yellowish tufts on the silver-spotted tiger moth caterpillars. Many species feign death when attacked; others emit noxious chemicals. The Insect Families of British Columbia: The Lepidoptera of British Columbia. Natural Resources Canada, Canadian Forest Service, Victoria, BC.
Llewellyn Jones, J.R.J. But the insect has more than 300 known hosts, including native shade trees, the rare and endangered Garry oak and valuable ornamental trees. Along with two small families from the Southern Hemisphere, these moths still use mandibles for eating pollen and have not evolved a proboscis for sucking fluids. Females have two or more bristles that mesh with a row of bristles in the fore wing. B.C. B.C. | B.C.’s response to COVID-19. A proboscis formed from the elongate, grooved galeae of the maxillae (held together by minute interlocking spines) is usually present. In males the frenulum is a single, composite bristle; the retinaculum is a membranous lobe. Usually cylindrical, they have a well-developed head, thorax (the top of the prothorax is usually sclerotized) and a 10-segmented abdomen. The most ancestral groups have similarly shaped fore and hind wings and the venation in both wings is similar (homoneurous), resembling that of the Trichoptera. 1998. In tympanal organ of Noctuoidea a soft pale membrane separated from tympanum by a sclerotized ridge. British Columbia Insects (527 Found) Listing of bugs and other insects that can be found in British Columbia. (ed.). Moths with homoneurous venation lock the wings with a jugum, a lobe on the inner margin of the fore wing near the base. Many moths and butterflies frequently visit flowers for nectar and they are probably important pollinators. every year, so far the insect has not become permanently established. Butterflies and some moths lack a frenulum, but have an expanded humeral area at the base of the hind wing grips the underside of the fore wing. B.C. Vol. 1997. Automeris io is a colorful moth species found in most parts …
Taylor checkerspot butterfly caterpillars: Note the masses of tent caterpillars gathered on a tent of webbing. Within the Heteroneura, over 100 families and almost 99% of lepidopteran species belong to the Ditrysia, a lineage whose females have separate genitalic openings for receiving sperm and laying eggs and where these two ducts are linked internally. In M. Fischer (ed.). Note also the shorter hairs on the body, and the white and yellow markings on the back. From the economic perspective, any negative role of Lepidoptera as predators and parasites is minor. The prothorax is usually small, the mesothorax large; the metathorax is a little smaller than the mesothorax in the very old lineages but is much smaller in the Heteroneura. Dense hairs and spines on caterpillars act as barriers to some parasites and, especially those projections that irritate, deter some vertebrate predators. Wax moths (Pyralidae) sometimes are economically destructive to honey bee colonies. Danks and J.A. In some cases the relationship is so specific that some plant species can be pollinated by only certain moths; yucca species and yucca moths of the Prodoxidae are examples. Among the most damaging are Choristoneura fumiferana (Clemens) (Spruce Budworm) and its western relative C. occidentalis Freeman, the geometrid Lambdina fiscellaria lugubrosa (Hulst) (Western Hemlock Looper), Orgyia pseudotsugata (McDunnough) (Douglas-fir Tussock Moth) and the tent caterpillars of the Lasiocampidae.
However, estimates suggest that there may be two or three times this number of species, Introduction to the Freshwater Fishes of BC, Cnidarians (Corals, Sea Anemones and Jellyfish), Crustaceans (Barnacles, Crabs, Shrimp and more), Introduction to the Cladocerans (Water Fleas) of BC, Introduction to the Decapods (Crabs, Crayfish and Shrimp) of BC, Anomura (Mole Crabs, Hermit Crabs, King Crabs, Porcelain Crabs, and Squat Lobsters) of BC, Astacidea (Crayfish and True Lobsters) of BC, Thalassinidea (Ghost and Mud Shrimps of BC), Introduction to the Ostracods (Seed Shrimp) of BC, Echinoderms (Sea Stars, Sea Cucumbers and Sea Urchins), Molluscs (Clams, Octopus, Snails and more), Introduction to the Aplacophora (Sclerite-bearing deep sea molluscs) of BC, Introduction to the Bivalvia (Clams, Scallops, and Mussels) of BC, Introduction to Cephalopoda (Octopus, Squid and Cuttlefish) of BC, Introduction to the Gastropoda (Snails, Limpets and Abalones), Introduction to the Land Snails and Slugs of BC, Introduction to the Polyplachora (Chitons) of BC, Introduction to the Robber Flies (Asilidae) of BC, Families of Lepidoptera in British Columbia, Mecoptera (Scorpionflies and their relatives), Orthoptera (Grasshoppers, Katydids, Crickets), Psocoptera (Psocids, Barklice and Booklice), Thysanura (Bristletails, Silverfish and Firebrats), Additional Bird Species in BC (PDF Articles), The Ecozones of BC, with Special Reference to Lepidoptera (PDF), Introduction to Alien and Invasive Species in BC, Exotic Introductions into BC Marine Waters, Marine Protected Areas and Climate Change (PDF), http://www.naturewatch.ca/eman/reports/publications/99_montane/lepidopt/intro.html.
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