Therion circumflexum

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Therion circumflexum
cf. Therion circumflexum, female

cf. Therion circumflexum , female

Systematics
Order : Hymenoptera (Hymenoptera)
Family : Wasps (Ichneumonidae)
Subfamily : Anomaloninae
Tribe : Gravenhorstiini
Genre : Therion
Type : Therion circumflexum
Scientific name
Therion circumflexum
( Linnaeus , 1758)

Therion circumflexum is a parasitic wasp from the subfamily of the Anomaloninae .

features

The ichneumon wasps are 14-25 mm long. The head and thorax of the relatively large parasitic wasps are predominantly black. The scutellum is yellow. The abdomen is mostly orange in color. Only the rear end and the top of the third tergite are black. The female has a short laying stinger . The antennae are orange with the exception of the black base. The legs have a yellow-orange pattern. The posterior femora and posterior tibia each have a dark colored apical end. The wing mark is colored orange. The inner apical wing cell has white marginal veins in two places. The females have three vertical yellow stripes in their field of vision and a yellow area above the labium . In the male, the visual field is almost completely yellow.

distribution

Therion circumflexum is widespread in large parts of the Palearctic (Europe, Asia, North Africa). The species also occurs in the Nearctic (North America).

Way of life

The adult parasitic wasps of Therion circumflexum fly from mid-June to September. Therion circumflexum parasitizes various species of butterflies. These include the zigzag moth ( Ectropis crepuscularia ), the privet hawk ( Sphinx ligustri ), the pine hawk ( Sphinx pinastri ), the zigzag moth ( Notodonta ziczac ) and a number of owl butterflies (Noctuidae). The female parasitic wasp lays its eggs in the caterpillars . The hatched larva feeds on the caterpillar and later pupates in a thin web.

Taxonomy

The following synonyms can be found in the literature :

  • Anomalone circumflexum
  • Ichneumon circumflexum Linnaeus , 1758

Individual evidence

  1. ↑ a b Therion circumflexum . www.commanster.eu. Retrieved July 20, 2018.
  2. ↑ a b D & JP Balmer: Therion circumflexum (L. 1758) ♂ & ♀ . flickr.com. Retrieved July 20, 2018.
  3. ↑ a b c Therion circumflexum in Fauna Europaea. Retrieved July 20, 2018
  4. ^ Therion circumflexum (Linnaeus, 1758) . www.biolib.cz. Retrieved July 20, 2018.

Web links

Commons : Therion circumflexum  - collection of images, videos and audio files