Overview

Brief Summary

Diversity

Diversity description:

One Subfamily, five tribes, 350 genera, and 2,500 species.

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Distribution

Geographical Distribution

Geographic Range:

Nearctic, Palearctic, Oriental, Ethiopian, Neotropical, Australian, Oceanic Island

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Physical Description

Morphology

Egg morphology

Orientation:

upright

Egg mass pattern:

The eggs mass pattern varies among species within the lymantria. Eggs can be laid in large masses, often covered by female terminal hair. Many species also cover the eggs in a frothy secretion. (Scoble 1992) Other species have been observed placing smaller amounts of eggs under tree bark scales, or using material to create a sort of camouflage. (Schaefer 1988)

Description of egg morphology:

spherical, hemispherical or subcylindrical. (Scoble 1992)

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Larvae Morphology

Secondary setae:

present

Body setae on verrucae:

present

Larval body description:

Often brightly colored

Larval abdomen description:

Two medial dorsal glands on the sixth and seventh abdominal segments. Somewhat eversible, function not determined, possibly defensive (Schaefer, 1988).

Abdominal glands:

present

Abdominal prolegs:

present

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Pupa/Cocoon morphology

Cocoon:

present

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Adult Abdomen Morphology

Female corethrogyne:

present

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Adult Thorax Morphology

Number of tibial spurs foreleg:

from 0

Number of tibial spurs midleg:

from 2

Number of tibial spurs hindleg:

from 2 to 4

Leg description:

The adult forelegs are hairy (Kitching, Rawlins 1998)

Forewing description:

areole is either present or absent (Scoble 1992)

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Tympanum Morphology

Counter-tympanum:

present

Counter-tympanum description:

located at the base of the abdomen, prespiracular. (Scoble 1992)

Abdomen tympanum:

present

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Adult Head Morphology

Ocelli:

absent

Maxillary palpus:

absent, minute

Number of maxillary palp segments:

from 0 to 1

Proboscis:

absent, reduced

Proboscis description:

Non-functional haustellum.

Mandibles:

absent

Male antennae:

bipectinate

Male scape description:

Pectinations are stronger in the male, end in 1-3 long spinules. (Scoble 1992)

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Diagnostic Description

Synapomorphies

Apomorphies:

Larvae have a mid-dorsal yellow/red gland on A6 and often on A7 that is eversible.  In resting position, wings are held in a broad triangle. They are pressed against the substrate; the forelegs are extended in front of the head

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Ecology

Associations

Animal / parasitoid / endoparasitoid
larva of Carcelia rasa is endoparasitoid of larva of Lymantriidae

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Life History and Behavior

Behavior

Larval Behavior

Larval behavior:

diurnal, nocturnal

Larval behavior:

Species exhibit both stenophagy and polyphagy feeding habits.

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Adult Behavior

Adult behavior:

diurnal, nocturnal

Adult behavior:

It is speculated that arctic dwelling species have evolved to be diurnal because of continuous summer daylight (Schaefer, 1988).

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Reproduction

Life History: Immature Stages

Larval food habits description:

Poorly recorded. Mainly on forest and shade trees. Less common are shrubs, vines, herbs, and grasses (Schaefer, 1988).

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:7394
Specimens with Sequences:6737
Specimens with Barcodes:6334
Species:658
Species With Barcodes:612
Public Records:2490
Public Species:234
Public BINs:379
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Barcode data: Lymantriidae spAS1

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Lymantriidae spAS1

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Barcode data

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Wikipedia

Lymantriidae

The different forms of the male (top) and female (bottom) tussock moth Orgyia recens is an example of sexual dimorphism in insects.
Illustration of Tussock Moth (1917).

Lymantriinae (formerly Lymantriidae) is a subfamily of moths of the Erebidae family.

Many of its component species are referred to as "tussock moths" of one sort or another. The caterpillar, or larval, stage of these species often has a distinctive appearance of alternating bristles and haired projections. Many tussock moth caterpillars have urticating hairs (often hidden among longer, softer hairs) which can cause painful reactions if they come into contact with skin.

The subfamily Lymantriinae includes about 350 known genera and over 2,500 known species found in every continent except Antarctica. They are particularly concentrated in sub-Saharan Africa, India, Southeast Asia and South America. One estimate lists 258 species in Madagascar alone (Schaefer, 1989). Apart from oceanic islands, notable places that do not host Lymantriines include the Antilles and New Caledonia (Schaefer, 1989).

Description[edit]

Adult moths of this subfamily do not feed. They usually have muted colours (browns and greys), although some are white, and tend to be very hairy. Some females are flightless, and some have reduced wings. Usually the females have a large tuft at the end of the abdomen. The males, at least, have tympanal organs (Scoble, 1995). They are mostly nocturnal, but Schaefer (1989) lists 20 confirmed diurnal species and 20 more likely diurnal species (based on reduced eye size).

The larvae are also hairy, often with hairs packed in tufts, and in many species the hairs break off very easily and are extremely irritating to the skin (especially members of the genus Euproctis; Schaefer, 1989). This highly effective defence serves the moth throughout its life cycle. The hairs are incorporated into the cocoon. An emerging adult female of some species collects and stores the hairs at the tip of the abdomen and uses them to camouflage and protect the eggs as they are laid. In other species, the eggs are covered by a froth that soon hardens or are camouflaged by material the female collects and sticks to them (Schaefer, 1989). In the larvae of some species, hairs are gathered in dense tufts along the back and this gives them the common name of tussocks or tussock moths.

Lymantria means "defiler", and several species are important defoliators of forest trees, including the gypsy moth Lymantria dispar, the douglas-fir tussock moth Orgyia pseudotsugata, and the Nun Moth Lymantria monacha. They tend to have broader host plant ranges than most Lepidoptera. Most feed on trees and shrubs, but some are known from vines, herbs, grasses and lichens (Schaefer, 1989).

Tribes[edit]

Several genera are classified into five tribes, while others remain unclassified (incertae sedis):

See also the list of Lymantriinae genera.

Systematics[edit]

Taxonomy is a dynamic discipline, and recent phylogenetic studies have reclassified the Lymantriidae family as the Lymantriinae subfamily of the newly formed family Erebidae.[1][2][3] The studies found that the Lymantriidae family form a specialized lineage within the Erebidae and is part of a clade that includes the litter moths (Herminiinae), the Aganainae, and the tiger and lichen moths (Arctiinae). The reclassification affected the former family as a whole and largely kept the clade intact. More study is needed to complete the internal classification of the genera into the tribes.

The following description clarifies the standing of the former name "Lymantriidae" relative to other proposed names, e.g. Liparidae[4] and other currently unacceptable alternatives. It authoritatively explains the status of the family name Lymantriidae and its various alternatives as matters stood towards the end of the 20th century:

"Lymantriidae Hampson, [1893], Fauna Br. India (Moths) 1 : 432.

This family was first separated under the name Lariidae Newman, 1832, Sphinx vespiformis, an essay : 40, 44 (as Lariae), based on the nominal genus Laria Schrank, 1802, a junior homonym of Laria Scopoli, 1763. The next name established for this family was Liparidae Boisduval, 1834, Icon. hist. Lepid. nouv. ou peu connus 2 : 134 (as Liparides), based on the nominal genus Liparis Ochsenheimer, 1810, a junior homonym of Liparis Scopoli, 1777. Neither of these family-group names may be used as a valid name, the type-genus in each case being a junior homonym.

The following names have also been established for the family

(a) Orgyiidae Wallengren, 1861, K. svenska Fregatten Eugenies Resa . . . C.A. Virgin aren 1851-1853 (Zool.) 1 (10, Lepidoptera) : 369 (as Orgyides), based on the nominal genus Orgyia Ochsenheimer, 1810;

(b) Dasychiridae Packard, 1864, Proc. ent. Soc. Philad. 3 : 331 (as Dasychirae), based on the nominal genus Dasychira Hübner, [1809];

(c) Lymantriidae Hampson, 1893, Fauna Br. India (Moths) 1 : 432, based on the nominal genus Lymantria Hübner, [1819];

(d) Leucomidae Grote, 1895, Mitt. Roemermus. Hildesh. 1 : 3, based on the nominal genus Leucoma Hübner, 1822;

(e) Ocneriidae Meyrick, 1895, Handbk Br. Lepid. : 169 (as Ocneriadae), based on the nominal genus Ocneria Hübner, [1819];

(f) Hypogymnidae Grote, 1896, Mitt Roemermus. Hildesh. 7 : 3, based on the nominal genus Hypogymna Billberg, 1820.

Of the family-group names listed in the last paragraph Liparidae was the most widely used during the nineteenth century; Orgyiidae and Dasychiridae had minor usage, but neither name became widely adopted. During the present century Orgyiidae has been used occasionally in contrast with Lymantriidae, which has been used many hundreds of times throughout the world. In North America the use of Liparidae has continued until, in the most recent revision of the family by Ferguson, 1978, in Dominick et al., Moths Am. N. of Mexico 22 (2), the family name Lymantriidae has been adopted.

Because of the overwhelming worldwide use of the name Lymantriidae an application has been submitted by D. S. Fletcher, I. W. B. Nye and D. C. Ferguson to the International Commission on Zoological Nomenclature requesting them to rule that the family-group name Lymantriidae Hampson [1893] is to be given nomenclatural precedence over the family-group names Orgyiidae Wallengren. 1861, and Dasychiridae Packard, 1864, when applied to the same taxon."[5]

As pointed out, "Liparidae" once was an alternative family name for the Lymantriidae, but nowadays "Liparidae" is firmly established as the name of a family of fish,[6] and according to the conventions of Zoological taxonomy, family names have to be unique, even though they are permitted to coincide with botanical names.

Notable species and genera[edit]

Literary references[edit]

In The God of Small Things by Arundhati Roy, the character Pappachi discovers a new species of lymantriid with "unusually dense dorsal tufts". At first, his discovery is misclassified as a race of an existing species. After Pappachi retires from the post of Imperial Entomologist, a taxonomic revision makes his moth the type species of a new genus. Pappachi's original claim is forgotten and the new genus is named for a former subordinate. The disappointment embitters Pappachi:

In the years to come, even though he had been ill-humored long before he discovered the moth, Pappachi's Moth was held responsible for his black moods and sudden bouts of temper. Its pernicious ghost--grey, furry and with unusually dense dorsal tufts--haunted every house that he ever lived in. It tormented him and his children and his children's children.

References[edit]

Footnotes
  1. ^ Zahiri R, Kitching IJ, Lafontaine JD, Mutanen M, Kaila L, Holloway JD, Wahlberg N (in press) A new molecular phylogeny offers hope for a stable family-level classification of the Noctuoidea (Insecta: Lepidoptera). Molecular Phylogenetics and Evolution.
  2. ^ Zahiri, Reze; et al. (2011). "Molecular phylogenetics of Erebidae (Lepidoptera, Noctuoidea)". Systematic Entomology. doi:10.1111/j.1365-3113.2011.00607.x. 
  3. ^ Lafontaine, Donald; Schmidt, Christian (19 Mar 2010). "Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico". Zookeys 40: 26. doi:10.3897/zookeys.40.414. 
  4. ^ Forest and Shade Tree Entomology ENT 4251 Laboratory Manual University of Michigan. Liparidae is properly used as the name for the family that includes the Snail fish
  5. ^ Watson, A., Fletcher, D.S. & Nye, I.W.B., 1980, in Nye, I.W.B. [Ed.], The Generic Names of Moths of the World, volume 2 © Trustees of the British Museum (Natural History), Publication Number 811 ISBN 0-565-00811-0 http://www.nhm.ac.uk/research-curation/research/projects/butmoth/pdf/GNMW_Vol_2.pdf
  6. ^ see for example Smith, J.L.B., "The Sea Fishes of Southern Africa", various editions since 1949 pub. Central News Agency
General
  • Chinery, Michael (1991): Collins Guide to the Insects of Britain and Western Europe (2nd edition).
  • Ferguson, D.C. (1978): Noctuoidea, Lymantriidae. In: The Moths of America North of Mexico (vol. 22-2). London: E. W. Classey.
  • Holloway, J.D. (2006): Moths of Borneo The Moths of Borneo, part 5: Family Lymantriidae. Accessed Aug. 13, 2006.
  • Schaefer, Paul (1989): Diversity in form, function, behavior, and ecology, In: USDA Forest Service (ed.): Proceedings, Lymantriidae: a comparison of features of New and Old World tussock moths: 1-19. Broomall, PA
  • Scoble, M. J. (1992): The Lepidoptera: Form, function and diversity (2nd ed.). Oxford University Press.
  • Skinner, Bernard (1984): Colour Identification Guide to Moths of the British Isles.
  • Schintlmeister, Alexander (2004): The Taxonomy of the genus Lymantria Hubner, [1819] (Lepidoptera: Lymantriidae).
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