Ichneumon eumerus

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Ichneumon eumerus
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Species:
I. eumerus
Binomial name
Ichneumon eumerus
Wesmael, 1857 [1]
Synonyms [1]
  • Ichneumon rarus Tischbein, 1873

Ichneumon eumerus is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Ichneumoninae. It is a specialist parasite of the larva of the mountain Alcon blue butterfly ( Phengaris rebeli ). [2]

Contents

Life cycle

The life cycle of I. eumerus is dependent on a butterfly, the mountain Alcon blue (Phengaris rebeli), the larvae of which trick ants in the species Myrmica schencki into carrying the larvae into their nest and caring for them as if they were ant larvae. The adult female wasp seeks out a nest of these ants; it seems to be able to tell by smell whether there are larvae of the butterfly present in the nest and if there are, it attempts to enter. The ants attack the intruder, but the wasp produces a pheromone that causes the ants to become confused and attack each other. This gives the wasp the chance to search out the butterfly larvae and lay an egg in each one. Afterwards the ants continue to feed and look after the butterfly larvae which in due course pupate. The wasp eggs hatch and the wasp larvae feed on the butterfly larvae from the inside, eventually pupating inside the butterfly pupae. [3]

Status

The mountain Alcon blue butterfly is a rare species which is known from the northern part of Portugal, the western Pyrenees, France, Switzerland, part of Germany and Greece at altitudes between 1,000 and 2,000 m (3,300 and 6,600 ft). [4] The butterfly is considered to be a "vulnerable species", and the wasp, being entirely dependent on the butterfly, would become extinct if the butterfly were to die out. [5]

Related Research Articles

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Eucharitidae

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<i>Myrmica sabuleti</i> Species of ant

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<i>Gentiana cruciata</i>

Gentiana cruciata, the star gentian or cross gentian, is a herbaceous perennial flowering plant in the Gentianaceae family.

<i>Lycaena rubidus</i> Species of butterfly

Lycaena rubidus, the ruddy copper, is a butterfly of the family Lycaenidae. It is found in the western mountains of North America. Adults lay their eggs on plants of the genus Rumex, which later become the larval food plants. This butterfly gets its name from the brightly colored wings of the males, which are important in sexual selection. Its larvae exhibit mutualism with red ants, and are often raised in ant nests until they reach adulthood. Adults are on wing from mid-July to early August.

<i>Myrmica schencki</i> Species of ant

Myrmica schencki is a species of ant in the genus Myrmica.

References

  1. 1 2 Ichneumon eumerus Biolib
  2. Klim, Brandon (1 April 2008). "Butterfly and Wasp: A Devious, Deceitful Cycle of Life". Wired. Retrieved 14 December 2017.
  3. Harder, Ben (30 May 2002). "Ants Pawns In Battle Of Wasps, Butterflies". National Geographic News. Archived from the original on 10 June 2002. Retrieved 14 December 2017.
  4. Rowlings, Matt. "Maculinea rebeli" . Retrieved 14 December 2017.
  5. Quicke, Donald L.J. (2014). The Braconid and Ichneumonid Parasitoid Wasps: Biology, Systematics, Evolution and Ecology. John Wiley & Sons. pp. 395–396. ISBN   978-1-118-90705-4.