Pseudosphinx

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Pseudosphinx
Hawkmoth (Pseudosphinx tetrio) (24300014457).jpg
Adult
Pseudosphinx tetrio.jpg
Caterpillar
Status TNC G4.svg
Apparently Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Sphingidae
Subfamily: Macroglossinae
Tribe: Dilophonotini
Genus: Pseudosphinx
Burmeister, 1856
Species:
P. tetrio
Binomial name
Pseudosphinx tetrio
(Linnaeus, 1771) [1]
Synonyms
  • Generic
  • Specific
    • Pseudosphinx obscura Butler, 1876
    • Sphinx hasdrubal Cramer, 1779
    • Sphinx plumieriae Fabricius, 1793
    • Sphinx tetrioLinnaeus, 1771

Pseudosphinx is a monotypic moth genus in the family Sphingidae first described by Hermann Burmeister in 1856. Its only species, Pseudosphinx tetrio, was first described by Carl Linnaeus in 1771. Its common names include tetrio sphinx, giant gray sphinx, frangipani hornworm, [2] and plumeria caterpillar. [3] In the island of Martinique it is best known as Rasta caterpillar (chenille rasta, in French) because of its colors which are reminiscent of the ones found in Rastafarian clothing and accessories. It is native to the tropical and subtropical Americas from the southern and southwestern United States to Brazil. The occasional individual has been recorded as far north as the northeastern United States. [2]

Contents

Description

The adult moth is brown with gray and white markings, and the hindwing is a darker brown. The female may be lighter in tone. The body has gray, white, and black bands. The wingspan is 12.7 to 14 centimeters, and the female is generally slightly larger than the male. [2]

The larva is a caterpillar which may exceed 15 centimeters in length. It is black with aposematic yellow bands and a red-orange head. Toward the posterior end is an orange bump with a black horn roughly 2 centimeters long. The legs are orange with black spots. The pupa is about 7 centimeters long. It is yellow when new, turning brown and darkening to a reddish brown as it hardens. [2]

Biology

The moth specializes on plants of the dogbane family, Apocynaceae. Host taxa include Plumeria species such as red frangipani (P. rubra) and white frangipani (P. alba), and golden trumpet (Allamanda cathartica). [2] P. alba in particular is so often infested with this caterpillar that it has been nicknamed "the wormy tree". [3]

The female lays eggs in clusters of about 50 to 100. The caterpillars feed on the plant, detoxifying the poisonous latex present in most Apocynaceae. It pupates in the leaf litter or under the soil. The adult feeds on nectar. It has been recorded on Madagascar periwinkle (Catharanthus roseus) and pequi (Caryocar brasiliense). [2] It has been observed as a pollinator of the fringed star orchid (Epidendrum ciliare) in Puerto Rico. [4]

The caterpillar has several antipredator adaptations. Its consumption of toxic plants makes it distasteful to most predators. An exception is the smooth-billed ani (Crotophaga ani), which tears the caterpillar apart to eat it, avoiding the gut containing the plant material. The caterpillar is also coated in barbed urticating hairs, which stick deeply in skin and cause irritation. If caught, the caterpillar bites. [5]

Impacts

The species has been known to damage and defoliate Plumeria. Each caterpillar can consume three large leaves per day, and it will continue eating into the branches if it finishes the available foliage. Even in the case of defoliation, the species does not generally kill plants. The caterpillars are large and conspicuous and can be controlled by plucking them from the tree. [2]

Related Research Articles

<span class="mw-page-title-main">Sphingidae</span> Family of insects

The Sphingidae are a family of moths commonly called sphinx moths, also colloquially known as hawk moths, with many of their caterpillars known as "hornworms"; it includes about 1,450 species. It is best represented in the tropics, but species are found in every region. They are moderate to large in size and are distinguished among moths for their agile and sustained flying ability, similar enough to that of hummingbirds as to be reliably mistaken for them. Their narrow wings and streamlined abdomens are adaptations for rapid flight. The family was named by French zoologist Pierre André Latreille in 1802.

<i>Manduca sexta</i> Species of moth

Manduca sexta is a moth of the family Sphingidae present through much of the Americas. The species was first described by Carl Linnaeus in his 1763 Centuria Insectorum.

<i>Plumeria</i> Genus of flowering plants endemic to the Americas

Plumeria, also known as frangipani, is a genus of flowering plants in the subfamily Rauvolfioideae, of the family Apocynaceae. Most species are deciduous shrubs or small trees. The species are native to the Neotropical realm, but are often grown as cosmopolitan ornamentals in tropical regions, especially in Hawaii, as well as hot desert climates in the Arabian Peninsula with proper irrigation.

<i>Manduca quinquemaculata</i> Species of moth

Manduca quinquemaculata, the five-spotted hawkmoth, is a brown and gray hawk moth of the family Sphingidae. The caterpillar, often referred to as the tomato hornworm, can be a major pest in gardens; they get their name from a dark projection on their posterior end and their use of tomatoes as host plants. Tomato hornworms are closely related to the tobacco hornworm Manduca sexta. This confusion arises because caterpillars of both species have similar morphologies and feed on the foliage of various plants from the family Solanaceae, so either species can be found on tobacco or tomato leaves. Because of this, the plant on which the caterpillar is found does not indicate its species.

<i>Eumorpha pandorus</i> Species of moth

Eumorpha pandorus, the Pandora sphinx moth or Pandorus sphinx moth, is a North American moth in the family Sphingidae. The species was first described by Jacob Hübner in 1821.

<i>Ceratomia amyntor</i> Species of moth

Ceratomia amyntor, the elm sphinx or four-horned sphinx, is a North American moth in the family Sphingidae. The species was first described by Carl Geyer in 1835. It has a wingspan of 3+14-4+12 inches. As the name suggests, the larvae (caterpillars) feed on elm trees (Ulmus), but they can also be found feeding on birch (Betula), basswood (Tilia), and cherry (Prunus). When the caterpillars are ready, they crawl to the bottom of the host tree, where they crawl underneath the soil and pupate and may overwinter underground if late enough into the year. Vegetable growers should be aware of this larvae due to its insatiable appetite. One of these larvae are capable in devouring huge amounts of plant's foliage and even succulent stems.

<i>Agrius cingulata</i> Species of moth

Agrius cingulata, the pink-spotted hawkmoth or sweetpotato hornworm, is a moth in the family Sphingidae. The species was first described by Johan Christian Fabricius in 1775.

<i>Eumorpha labruscae</i> Species of moth

Eumorpha labruscae, the gaudy sphinx, is a moth in the family Sphingidae.

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

Paonias excaecata, the blinded sphinx, is a moth of the family Sphingidae. The species was first described by James Edward Smith in 1797.

<i>Daphnis nerii</i> Species of moth

Daphnis nerii, the oleander hawk-moth or army green moth, is a moth of the family Sphingidae. It was described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.

<i>Theretra oldenlandiae</i> Species of moth

Theretra oldenlandiae, the impatiens hawkmoth, taro hornworm or white-banded hunter hawkmoth, is a member of the family Sphingidae.

<i>Sphinx ligustri</i> Species of moth

Sphinx ligustri, the privet hawk moth, is a moth found in most of the Palearctic realm. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.

<i>Isognathus rimosa</i> Species of moth

Isognathus rimosa, the rimosus sphinx, is a moth of the family Sphingidae. The species was first described by Augustus Radcliffe Grote in 1865.

<i>Hyles gallii</i> Species of moth

Hyles gallii, the bedstraw hawk-moth or galium sphinx, is a moth of the family Sphingidae. The species was first described by S. A. von Rottemburg in 1775.

<i>Hyles lineata</i> Species of moth

Hyles lineata, also known as the white-lined sphinx, is a moth of the family Sphingidae. They are sometimes known as the hummingbird moth because of their bird-like size and flight patterns.

<i>Achaea janata</i> Species of moth

Achaea janata, the castor semi-looper or croton caterpillar, is an erebid moth, the caterpillars of which are termed 'semi-loopers' due to their mode of locomotion. It is found from the Indo-Australian tropics and subtropics, extending south to New Zealand and east through the Pacific archipelagoes to Easter Island. It is a major pest of castor throughout the world.

<i>Sphinx pinastri</i> Species of moth

Sphinx pinastri, the pine hawk-moth, is a moth of the family Sphingidae. It is found in Palearctic realm and sometimes the Nearctic realm. This species has been found in Scotland but is usually found in England. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.

<i>Cephonodes hylas</i> Species of moth

Cephonodes hylas, the coffee bee hawkmoth, pellucid hawk moth or coffee clearwing, is a moth of the family Sphingidae. The species was first described by Carl Linnaeus in 1771. A widely distributed moth, it is found in the Near East, Middle East, Africa, India, Sri Lanka, Japan, Southeast Asia and Australia.

<i>Plumeria alba</i> Species of tree

Plumeria alba is a species of flowering plant in the genus Plumeria native to Puerto Rico and the Lesser Antilles in the Caribbean. It has been planted in tropical regions worldwide.

<i>Epidendrum ciliare</i> Species of orchid

Epidendrum ciliare, synonyms including Coilostylis ciliaris is a species of orchid. It is known as the fringed star orchid. It has a wide distribution from Mexico through Central America and the Caribbean to northern and western South America.

References

  1. Lotts, Kelly & Naberhaus, Thomas (2017). "Tetrio sphinx Pseudosphinx tetrio (Linnaeus, 1771)". Butterflies and Moths of North America. Retrieved 21 November 2018.
  2. 1 2 3 4 5 6 7 Dunford, J. C. and K. A. Barbara. Tetrio Sphinx, Giant Gray Sphinx, Frangipani Hornworm, Pseudosphinx tetrio (Linnaeus) (Insecta: Lepidoptera: Sphingidae). EENY-344. Entomology and Nematology. Florida Cooperative Extension Service. University of Florida IFAS. 2005.
  3. 1 2 Sloan, S. A., et al. (2007). Phenology of Plumeria alba and its herbivores in a tropical dry forest. Archived 4 March 2016 at the Wayback Machine Biotropica 39(2), 195–201.
  4. Ackerman, J. D. and A. M. Montalvo. (1990). Short-and long-term limitations to fruit production in a tropical orchid. Ecology 71(1), 263–72.
  5. Mitton, J. Caterpillar or coral snake? Archived 25 June 2016 at the Wayback Machine Colorado Arts & Sciences Magazine. University of Colorado, Boulder. 14 May 2010.