Orgyia leucostigma

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White-marked tussock moth
- 8316 - Orgyia leucostigma - White-marked Tussock Moth (47990124636).jpg
Adult
Orgyia leucostigma larva 1.jpg
Larva
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Erebidae
Genus: Orgyia
Species:
O. leucostigma
Binomial name
Orgyia leucostigma
(J. E. Smith, 1797)
Synonyms
  • Phalaena leucostigmaJ. E. Smith, 1797
  • Hemerocampa leucostigma
  • Cladophora leucographaGeyer, 1832
  • Acyphas plagiataWalker, 1855
  • Orgyia wardiRiotte, 1971
  • Orgyia oslariBarnes, 1900
  • Orgyia liberaStrecker, 1900

Orgyia leucostigma, the white-marked tussock moth, is a moth in the family Erebidae. The species was first described by James Edward Smith in 1797. The caterpillar is very common especially in late summer in eastern North America, extending as far west as Texas, California, and Alberta. [1]

Contents

Etymology

The genus name Orgyia is from the ancient Greek word ὄργυια, órgyia - 'outstretched arms'. So named because, when at rest, the moth stretches forward its forelegs like arms.

Life cycle

Two or more generations occur per year in eastern North America. [2] They overwinter in the egg stage.

Eggs

Eggs are laid in a single mass over the cocoon of the female, and covered in a froth. [2] Up to 300 eggs are laid at a time.

Larvae

The larvae are brightly colored, with tufts of hair-like setae. The head is bright red and the body has yellow or white stripes, with a black stripe along the middle of the back. Bright red defensive glands are seen on the hind end of the back. Four white toothbrush-like tufts stand out from the back, and a gray-brown hair pencil is at the hind end.[ citation needed ] The four white tufts on the larva's back may mimic the cocoons of parasitic wasps. [3] Touching the hairs sets off an allergic reaction in many humans. [2] Young larvae skeletonize the surface of the leaf, while older larvae eat everything except the larger veins. [4] :72–73 They grow to about 35 mm long.

Pupae

The caterpillars spin a grayish cocoon in bark crevices and incorporate setae in it. The moths emerge after two weeks.

Adults

The females have reduced wings and do not leave the vicinity of the cocoon. The males are gray with wavy black lines and a white spot on the forewings (the vapourer, Orgyia antiqua , is similar but is a rusty color.) The antennae are very feathery. Moths are found from June to October.

Host plants

The caterpillars may be found feeding on an extremely wide variety of trees, both deciduous and coniferous, including apple, birch, black locust, cherry, elm, fir, hackberry, hemlock, hickory, larch, oak, rose, spruce, chestnut, and willow. [2] Defoliating outbreaks are occasionally reported especially on Manitoba maple and elm in urban areas. [4] Outbreaks are usually ended by viral disease.

Ecology

The fungus Entomophaga maimaiga was introduced to North America to control the spongy moth (Lymantria dispar). The fungus also infects O. leucostigma [5] and could possibly have an impact in years when E. maimaiga is abundant. Large larvae are mostly attacked by birds, and small larvae mostly disappear during dispersal. [6]

Subspecies

Related Research Articles

<i>Lymantria dispar</i> Species of moth

Lymantria dispar, also known as the gypsy moth or the spongy moth, is a species of moth in the family Erebidae native to Europe and Asia. Lymantria dispar is subdivided into several subspecies, with subspecies such as L. d. dispar and L. d. japonica being clearly identifiable without ambiguity. Lymantria dispar has been introduced to several continents and is now additionally found as an invasive species in Africa, North America and South America. The polyphagous larvae live on a variety of deciduous and coniferous trees and can cause severe damage in years of mass reproduction. Due to these features, Lymantria dispar is listed among the world's 100 worst invasive alien species.

<span class="mw-page-title-main">Lymantriinae</span> Subfamily of moths

The Lymantriinae are a subfamily of moths of the family Erebidae. The taxon was erected by George Hampson in 1893.

<span class="mw-page-title-main">Brown-tail moth</span> Species of moth

The brown-tail moth is a moth of the family Erebidae. It is native to Europe, neighboring countries in Asia, and the north coast of Africa. Descriptions of outbreaks, i.e., large population increases of several years duration, have been reported as far back as the 1500s. The life cycle of the moth is atypical, in that it spends approximately nine months as larvae (caterpillars), leaving about one month each for pupae, imagos and eggs. Larvae (caterpillars) are covered in hairs. Two red spots on the back, toward the tail, distinguish these species from other similarly hairy moth larvae. The winged adults have white wings and a hairy white body with a tuft of brown hair at the tip of the abdomen. Females lay one egg cluster, usually on the underside of a leaf of a host plant. The species is polyphagous, meaning that it feeds on many different species of trees, including pear, apple, maple and oak.

<span class="mw-page-title-main">Lasiocampidae</span> Family of moths

The Lasiocampidae are a family of moths also known as eggars, tent caterpillars, snout moths, or lappet moths. Over 2,000 species occur worldwide, and probably not all have been named or studied. It is the sole family in superfamily Lasiocampoidea.

<i>Megalopyge opercularis</i> Venomous species of moth, "puss caterpillar"

Megalopyge opercularis is a moth of the family Megalopygidae. It has numerous common names, including southern flannel moth for its adult form, and puss caterpillar, asp, Italian asp, fire caterpillar, woolly slug, opossum bug, puss moth, tree asp, or asp caterpillar.

<i>Orgyia antiqua</i> Species of moth

Orgyia antiqua, the rusty tussock moth or vapourer, is a moth in the family Erebidae.

<span class="mw-page-title-main">Limacodidae</span> Family of moths

The Limacodidae or Eucleidae are a family of moths in the superfamily Zygaenoidea or the Cossoidea; 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.

<i>Euchaetes egle</i> Species of moth

Euchaetes egle, the milkweed tiger moth or milkweed tussock moth, is a moth in the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by Dru Drury in 1773. It is a common mid- through late summer feeder on milkweeds and dogbane. Like most species in this family, it has chemical defenses it acquires from its host plants, in this case, cardiac glycosides. These are retained in adults and deter bats, and presumably other predators, from feeding on them. Only very high cardiac glycoside concentrations deterred bats as predators. Adults indicate their unpalatability to bats with ultrasonic clicks from their tymbal organs.

<i>Halysidota tessellaris</i> Species of moth

Halysidota tessellaris, also called the pale tiger moth, banded tussock moth, and tessellated halisidota, is in the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by James Edward Smith in 1797. Like many related species, adult moths have chemical defenses acquired from its host plants, in this case, alkaloids. Larval behaviors suggest that they are chemically protected; they have not been analyzed for alkaloid content.

<i>Lophocampa caryae</i> Species of moth

Lophocampa caryae, the hickory tiger moth, hickory tussock moth, or hickory halisidota, is a moth in the family Erebidae and the tribe Arctiini, the tiger moths. The species is widely distributed in the eastern half of North America. In other species in this family, the caterpillars acquire chemical defenses from their host plants, so they are potentially toxic or unpalatable, but despite anecdotal claims that this species may also be venomous, no venom has yet been isolated or identified; adverse reactions are characterized as irritant contact dermatitis.

<i>Orgyia</i> Genus of moths

Orgyia is a genus of tussock moths of the family Erebidae. The genus was described by Ochsenheimer in 1810. The species are cosmopolitan, except for the Neotropical realm.

<i>Eriogaster lanestris</i> Species of moth

Eriogaster lanestris, commonly known as the small eggar, is a moth of the family Lasiocampidae that is found across the Palearctic. Unlike many other members of the Lasiocampidae, the small eggar is a social insect. Historically, only eusocial insects like ants, bees, and termites were thought to exhibit complex social organization and communication systems. However, research since the late 20th century has found that E. lanestris, among a number of other phylogenetically related moth and butterfly species, demonstrates social behaviors as well. Larvae spend nearly their entire development in colonies of about 200 individuals, and this grouped social structure offers a number of benefits, from thermoregulation to increased foraging success.

<i>Estigmene acrea</i> Species of moth

Estigmene acrea, the salt marsh moth or acrea moth, is a moth in the family Erebidae. The species was first described by Dru Drury in 1773. It is found in North America, and southwards from Mexico to Colombia.

<i>Ochrogaster lunifer</i> Species of moth

Ochrogaster lunifer, the bag-shelter moth or processionary caterpillar, is a member of the family Notodontidae. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1855. Both the larval and adult forms have hairs that cause irritation of the skin (urticaria). The adult moth has a woolly appearance and its wings can grow to be about 5.5 cm across. The larvae feed on Grevillea striata at night and reside in brown silken bag nest during the day.

Orgyia leucostigma sablensis is a subspecies of Orgyia leucostigma, the white-marked tussock moth, found only on Sable Island in Nova Scotia, Canada. The subspecies was first described by Kenneth Neil in 1979.

<i>Orgyia pseudotsugata</i> Species of moth

Orgyia pseudotsugata, the Douglas-fir tussock moth, is a moth of the subfamily Lymantriinae first described by James Halliday McDunnough in 1921. It is found in western North America. Its population periodically irrupts in cyclical outbreaks. The caterpillars feed on the needles of Douglas fir, true fir, and spruce in summer, and moths are on the wing from July or August to November.

<i>Orgyia postica</i> Species of moth

Orgyia postica, the cocoa tussock moth or hevea tussock moth, is a species of moth of the subfamily Lymantriinae of the family Erebidae found in the Oriental tropics of India, Sri Lanka, Myanmar, Borneo, Java, New Guinea, and Taiwan. It was described by Francis Walker in 1855.

<i>Lymantria dispar dispar</i> Subspecies of moth (gypsy moth)

Lymantria dispar dispar, commonly known as the gypsy moth, European gypsy moth, LDD moth, or North American gypsy moth or spongy moth, is a species of moth in the family Erebidae. It has a native range that extends over Europe and parts of Africa, and is an invasive species in North America.

<i>Entomophaga maimaiga</i> Species of fungus

Entomophaga maimaiga is a Japanese fungus which has shown striking success in managing spongy moth populations in North America.

Gynaephora rossii, in English known as Ross' tussock moth, is a species of tussock moth in the family Erebidae. It is widespread in the tundras and highlands of the Holarctic. It has large, furry caterpillars which seem to eat mostly saxifrages.

References

  1. "Orgyia leucostigma (white-marked tussock moth)". CABI Invasive Species Compendium. CABI. 2019. Retrieved 4 August 2019.
  2. 1 2 3 4 Wagner, D. M. (2005). Caterpillars of Eastern North America. Princeton University Press. ISBN   0691121443 [ page needed ]
  3. The BugLady (23 November 2010). "White-Marked Tussock Moth (Family Lymantriidae)". College of Letters & Science Field Station. University of Wisconsin Milwaukee. Archived from the original on 18 April 2023.
  4. 1 2 Rose, AH and OH Lindquist. (1982). Insects of eastern hardwood trees. Canadian Forestry Service, Forestry Tech Rep 29. Government of Canada, Ottawa. ISBN   0-660-11205-1.
  5. Hajek, A. E.; Strazanac, J. S.; Wheeler, M. M.; Vermeylen, F. M.; & Butler, L. (2004). "Persistence of the fungal pathogen Entomophaga maimaiga and its impact on native Lymantriidae". Biological Control. 30 (2): 466–473.
  6. Medina, R. F. & Barbosa, P. (2002). "Predation of small and large Orgyia leucostigma (J.E. Smith) (Lepidoptera: Lymantriidae) larvae by vertebrate and invertebrate predators". Environmental Entomology. 31: 1097–1102.