Brithys crini

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Amaryllis borer
Brithys crini, larwe, Pretoria, a.jpg
Larva
Brithys crini, Pretoria.jpg
Adult
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Brithys
Species:
B. crini
Binomial name
Brithys crini
(Fabricius, 1775)
Synonyms
  • Bombyx crini
  • Phalaena dominica
  • Noctua pancratii
  • Noctua encausta
  • Brithys vertenteni
  • Brithys nipponica
  • Brithys encausta
  • Brithys pancratii
  • Glottula pancrati

Brithys crini, the amaryllis borer, crinum borer, [1] lily borer or Kew arches, is a moth of the family Noctuidae. It is a garden pest in parts of its range, as their larvae damage the stems and leaves of lilies, especially lilies of the family Amaryllidaceae. [2]

Contents

Range

It is found in the coastal areas of the Mediterranean, south to South Africa. Furthermore, it is found in Japan and in Queensland and Northern Territory in Australia towards India and Sri Lanka.

Description

Larva boring into a sea daffodil leaf Brythis crini1.JPG
Larva boring into a sea daffodil leaf
Larva feeding on a slime lily stem Brithys crini Noctuidae Lily borer larva 8747s.jpg
Larva feeding on a slime lily stem

The wingspan of the moth is about 40 mm. Its head, thorax and forewings are very dark brown, but paler toward the wingtips. Sub-basal, median and postmedial indistinct waved lines are black. A curved submarginal ochreous line with ferrous colored lunuled found on each side of it. There is a marginal black lunule series. The hindwings are practically white. Tarsi bear black and white stripes. In Europe the adults are on the wing in July. [3]

Life stages

There are several generations per year, though development slows down in cooler seasons, when the larvae sometimes overwinter by boring into the bulbs of the host plants.

The moth lays clusters of a few dozen eggs on the host plant leaves. The hatching larvae at first remain in groups and mine into the leaves. As they grow they either emerge and feed externally, or proceed down the leaves to their bases or even into the bulbs.

The larvae are aposematically coloured in pale yellows on blacks and browns. They are unpalatable to most vertebrate predators, and also poisonous, feeding as they do, on largely unpalatable and poisonous plants. They are slightly bristly, but the bristles seem to be sensory rather than irritant. Typically they grow to about 40 mm long before pupation. [4]

Food plants

The larvae feed on all species of Crinum , Clivia and Hippeastrum , including Crinum angustifolium , Haemanthus species, Hippeastrum procerum , Pancratium maritimum , [5] Zephyranthes candida , Crocus tommasinianus , Narcissus spp., and Amaryllis belladonna. Commonly they bore into thick leaves or even into the bulbs; Mature larvae are likely to feed externally, especially on thin-leaved plants. Heavy infestations of the caterpillars may kill plants. [6]

Predators

The most effective enemies of the larvae in Europe are the carabid (ground beetle) Scarites buparius and the tenebrionid (darkling beetles), Erodius siculus and Pimelia bipunctata.

Control

Commercial carbaryl dusts are effective in combating the caterpillar, but they cannot reach those that have bored into the plant. The insecticide also reduces populations of predators, so that weekly applications become necessary. For small scale horticulture, or in home gardens it is better to rely on mechanical control, seeking out discoloured feeding patches on leaves and crushing the young larvae before they develop. Heavily infested leaves it often is better to cut out and destroy. [1]

Related Research Articles

<i>Amaryllis</i> Genus of plants

Amaryllis is the only genus in the subtribe Amaryllidinae. It is a small genus of flowering bulbs, with two species. The better known of the two, Amaryllis belladonna, is a native of the Western Cape region of South Africa, particularly the rocky southwest area between the Olifants River Valley and Knysna.

<span class="mw-page-title-main">Bulb</span> Short plant stem with fleshy leaves or leaf bases for food storage and water

In botany, a bulb is structurally a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy.

<i>Hippeastrum</i> Genus of flowering plants in the family Amaryllidaceae

Hippeastrum is a genus of about 90 species, and over 600 hybrids and cultivars, of perennial, herbaceous and bulbous plants, native to tropical and subtropical regions of the Americas, from Mexico south to Argentina and on some islands in the Caribbean. The majority have large, fleshy bulbs—usually about the size of a softball—and tall, broad, strap-like leaves that are (generally) evergreen, and large red or purple flowers. Numerous colors and cultivars have been created over the past hundred years.

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

The cinnabar moth is a brightly coloured arctiid moth found as a native species in Europe and western and central Asia then east across the Palearctic to Siberia to China. It has been introduced into New Zealand, Australia and North America to control ragwort, on which its larvae feed. The moth is named after the red mineral cinnabar because of the red patches on its predominantly black wings. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Cinnabar moths are about 20 mm (0.79 in) long and have a wingspan of 32–42 mm (1.3–1.7 in).

<i>Crinum</i> Genus of flowering plants in the family Amaryllidaceae

Crinum is a genus of about 180 species of perennial plants that have large showy flowers on leafless stems, and develop from bulbs. They are found in seasonally moist areas, including marshes, swamps, depressions and along the sides of streams and lakes in tropical and subtropical areas worldwide.

<i>Amaryllis belladonna</i> Species of flowering plant in the family Amaryllidaceae

Amaryllis belladonna, the Jersey lily, belladonna-lily, naked-lady-lily, or March lily, is a plant species native to Cape Province in South Africa but widely cultivated as an ornamental. It is reportedly naturalized in many places: Corsica, Portugal, the Azores, Madeira, the Canary Islands, the Scilly Isles of Great Britain, the Democratic Republic of the Congo, Ascension Island, Australia, New Zealand, Mexico, Cuba, Haiti, the Dominican Republic, Chile, California, Texas, Louisiana, Mississippi, Michigan and the Juan Fernández Islands.

<span class="mw-page-title-main">Beet armyworm</span> Species of moth

The beet armyworm or small mottled willow moth is one of the best-known agricultural pest insects. It is also known as the asparagus fern caterpillar. It is native to Asia, but has been introduced worldwide and is now found almost anywhere its many host crops are grown. The voracious larvae are the main culprits. In the British Isles, where it is an introduced species and not known to breed, the adult moth is known as the small mottled willow moth.

<span class="mw-page-title-main">African armyworm</span> Species of moth

The African armyworm, also called okalombo, kommandowurm, or nutgrass armyworm, is a species of moth of the family Noctuidae. The larvae often exhibit marching behavior when traveling to feeding sites, leading to the common name "armyworm". The caterpillars exhibit density-dependent polyphenism where larvae raised in isolation are green, while those raised in groups are black. These phases are termed solitaria and gregaria, respectively. Gregaria caterpillars are considered very deleterious pests, capable of destroying entire crops in a matter of weeks. The larvae feed on all types of grasses, early stages of cereal crops, sugarcane, and occasionally on coconut. The solitaria caterpillars are less active and undergo much slower development. The species is commonly found in Africa, but can also be seen in Yemen, some Pacific islands, and parts of Australia. African armyworm outbreaks tend to be devastating for farmland and pasture in these areas, with the highest-density outbreaks occurring during the rainy season after periods of prolonged drought. During the long dry seasons ("off-season"), the population densities are very low and no outbreaks are seen.

<i>Scadoxus</i> Genus of flowering plants

Scadoxus is a genus of African and Arabian plants in the Amaryllis family, subfamily Amaryllidoideae. The English names blood lily or blood flower are used for some of the species. The genus has close affinities with Haemanthus. Species of Scadoxus are grown as ornamental plants for their brilliantly coloured flowers, either in containers or in the ground in frost-free climates. Although some species have been used in traditional medicine, they contain poisonous alkaloids.

<i>Utetheisa ornatrix</i> Species of moth

Utetheisa ornatrix, also called the ornate bella moth, ornate moth, bella moth or rattlebox moth, is a moth of the subfamily Arctiinae. It is aposematically colored ranging from pink, red, orange and yellow to white coloration with black markings arranged in varying patterns on its wings. It has a wingspan of 33–46 mm. Moths reside in temperate midwestern and eastern North America as well as throughout Mexico and other parts of Central America. Unlike most moths, the bella moth is diurnal. Formerly, the bella moth or beautiful utetheisa of temperate eastern North America was separated as Utetheisa bella. Now it is united with the bella moth in Utetheisa ornatrix.

<i>Brithys</i> Genus of moths

Brithys is a genus of moths of the family Noctuidae. It includes three species.

<i>Busseola fusca</i> Species of moth

Busseola fusca is a species of moth that is also known as the maize stalk borer. It is known from Ethiopia.

<i>Hippeastrum puniceum</i> Species of flowering plant

Hippeastrum puniceum is a bulbous perennial native to tropical regions of South America, although it has become naturalized elsewhere. Common names include Barbados lily, Easter lily, cacao lily, cocoa lily and amaryllis lily, although it is neither a lily nor a species of Amaryllis.

<i>Diaphone eumela</i> Species of moth

Diaphone eumela, the cherry spot or lily borer, is a moth of the family Noctuidae. It is found in Lesotho, Mozambique, Namibia, South Africa and Angola.

<i>Omphisa fuscidentalis</i> Species of moth

Omphisa fuscidentalis, the bamboo worm, is a moth of the family Crambidae. Its habitat are the bamboo groves and forests in the cooler regions of northern Thailand, northern Laos, northern Myanmar, and adjacent parts of Yunnan Province, China, it is also found in some parts of North east India. The mature caterpillars are viewed as a delicacy by the inhabitants of these regions.

<i>Spodoptera picta</i> Species of moth

Spodoptera picta, the lily caterpillar, is a moth of the family Noctuidae. It was described by Félix Édouard Guérin-Méneville in 1838. It is found in from India, South-east Asia and Japan through Indonesia and the western part of South Pacific ocean to Fiji.

Chilo infuscatellus, the yellow top borer or sugarcane shoot borer, is a moth in the family Crambidae. It was described by the Dutch entomologist Samuel Constantinus Snellen van Vollenhoven in 1890. It is found in India, Myanmar, Tajikistan, Afghanistan, Korea, Taiwan, Malaysia, the Philippines and on Java and Timor.

Chilo partellus, the spotted stalk borer or spotted stem borer, is a moth in the family Crambidae. It was described by Charles Swinhoe in 1885. It is found in India, Pakistan, Iran, Ethiopia, Lesotho, Madagascar, Malawi, South Africa, Sudan, Tanzania, Uganda and on Mayotte.

<i>Polytela gloriosae</i> Species of moth

Polytela gloriosae, the Indian lily moth or lily caterpillar, is a moth of the family Noctuidae. The species was first described by Johan Christian Fabricius in 1781. It is found in Sri Lanka, India and probably in Indonesia.

<i>Chlumetia transversa</i> Species of moth

Chlumetia transversa, the mango shoot borer, is a moth of the family Euteliidae. The species was first described by Francis Walker in 1863. It is a widely distributed across Indo-Australian tropical countries far east to Solomon Islands.

References

  1. 1 2 Annecke, D. R.; Moran, V. C. (1982). Insects and mites of cultivated plants in South Africa. London: Butterworths. ISBN   0-409-08398-4.
  2. "Kew Arches Brithys crini". UKMoths. Retrieved 19 October 2015.
  3. Hampson, G. F. (1894). The Fauna of British India, Including Ceylon and Burma: Moths Volume II. Taylor and Francis via Biodiversity Heritage Library.
  4. Herbison-Evans, Don & Crossley, Stella (4 June 2018). "Brithys crini (Fabricius, 1775) Lily Borer". Australian Caterpillars and their Butterflies and Moths. Retrieved 13 January 2019.
  5. "Noctuidae Noctuinae Glottulini". Moths and Butterflies of Europe and North Africa. Retrieved 2 August 2016.
  6. "Brithys crini, (Fabricuis, 1775)". African Moths. Retrieved 2 August 2016.