Calyptra (moth)

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Scientific classification e
Kingdom: Animalia
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Erebidae
Tribe: Calpini
Genus: Calyptra
Ochsenheimer, 1816
  • Calpe Treitschke, 1825
  • Culasta Moore, 1881
  • Hypocalpe Butler, 1883
  • Percalpe Berio, 1956

The genus Calyptra is a group of moths in subfamily Calpinae of the family Erebidae. They are a member of the Calpini tribe, whose precise circumscription is uncertain but which includes a number of other fruit-piercing or eye-frequenting genera currently classified in Calpinae.[1]


The common name of many of these species, vampire moth, refers to the habit that they have of drinking blood from vertebrates. According to a recent study, some of them (C. thalictri) are even capable of drinking human blood through skin.[2][3] However, the moths are not thought to cause any threat to humans.[4]

Some species of this genus have been classified with genus name Calpe, and they include more than one blood-sucker.


Palpi porrect, where the second joint and third joint fringed below with very long hair. The frontal tuft large. Metathorax with very slight tufts. Abdomen with coarse hair on dorsum. Tibia spineless, but slightly hairy. Fore wings with slightly arched costa. Apex acute, outer margin excurved at vein 3. The inner margin lobed near base and at outer angle. Larva with three pairs of abdominal prolegs.[5]


These insects have been changing their habitat in recent years. The species Calyptra thalictri was originally native to Malaysia, the Urals and Southern Europe,[6] but has been turning up in northern Europe. In 2000, they were observed in Finland and in 2008 they were seen further west in Sweden. The Swedish observation was in Skutskär north of the capital Stockholm[4] whilst the sightings in Finland have been more numerous. It is found in southern Finland, in particular in the south east.[7]

The moth Calyptra thalictri has been seen to be associated with the plant meadow-rue.[8]

Penetrating skin[edit]

Insects piercing the skin of mammals are familiar in creatures such as mosquitoes, but the moth uses a specially developed proboscis to penetrate the skin of animals, such as buffalo. A species in Malaysia was observed using its hollowed out proboscis which is divided into two halves. The insect rocks the proboscis from one side to the other, applying pressure until it pierces the skin. It then uses a rocking head motion to drill the tube deeper into the skin. The blood pressure of the victim supplies power to raise hooks on the proboscis to ensure the insect is not easily detached.[9] Only male moths exhibit this ability, unlike mosquitoes, where the female is the one that drinks blood.

It is thought that the moth's ability to pierce animal skin and drink blood may have sprung from an earlier ability to pierce fruit in search of juice.[4] Human skin penetrated in this way may turn red and be sore for several hours leaving an itchy rash. Despite the bite being more severe than that of a mosquito, it is believed that the moths don’t pose a risk to humans.[7]

Although it has been reported that moths have bitten humans in Asia, it was not until the summer of 1999 that a Russian scientist, Vladimir Kononenko, observed that this species of moth was capable of filling its stomach with human blood.[7]



  1. ^ Calpinae Archived September 27, 2015, at the Wayback Machine., in Wikispecies, accessed 20 October 2008
  2. ^ article Archived July 9, 2011, at the Wayback Machine.,, Estonian, accessed 20 October 2008
  3. ^ Picture of thumb being pierced Archived November 14, 2016, at the Wayback Machine. Worlds weirdest moths, accessed 20 October 2008
  4. ^ a b c Vampire moth turns up in Sweden Archived November 1, 2008, at the Wayback Machine., Peter Vinthagen Simpson, The local, 29 July 2008, accessed 20 October 2008
  5. ^ Hampson G. F. (1892). "The Fauna Of British India Including Ceylon And Burma Moths Vol-ii". Digital Library of India. p. 558. Retrieved 4 July 2016. [permanent dead link]
  6. ^ Vampire moth turns up in Finland Archived March 24, 2016, at the Wayback Machine., The Guardian, 4 June, 2007, accessed 20 October 2008
  7. ^ a b c Blood-sucking vampire moth becoming more common in Finland Archived August 4, 2013, at the Wayback Machine., Helsingin Sanomat, 5 June 2007, accessed 20 October, 2008
  8. ^ calyptra thalictri Archived March 4, 2016, at the Wayback Machine.,, accessed 20 October, 2008
  9. ^ Our Amazing World: Wonders hidden below the surface[permanent dead link] By Avrohom Katz, p, ISBN 0-89906-313-6, accessed 20 October 2008

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