Pachyta quadrimaculata

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Pachyta quadrimaculata
Pachyta quadrimaculata01.jpg
Adult of Pachyta quadrimaculata
Scientific classification
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Species:
P. quadrimaculata
Binomial name
Pachyta quadrimaculata
Synonyms
  • Leptura octomaculataFabricius, 1792 nec Schaller, 1783
  • Leptura quadrimaculata Linnaeus, 1758
  • Leptura timidaScopoli, 1763
  • Pachyta quadrimaculata var. reductaVilliers, 1978
  • Stenocorus major punctatus Voet, 1806

Pachyta quadrimaculata is a species of the Lepturinae subfamily in long-horned beetle family. [1] [2]

Contents

Subtaxons

There are five varieties in the species: [1]

Distribution

This beetle is present in Austria, Bulgaria, Croatia, Czech Republic, Estonia, Finland, France, Germany, Hungary, Italy, Mongolia, Poland, Romania, Serbia, Slovakia, Slovenia, Spain, Switzerland, Central and Eastern European Russia, They are absent in the British Isles and the Netherlands. [1] [3] up to Siberia. The eastern boundary of the distribution area runs along the Amur River.

Habitat

Mating couple, covered with pollen Cerambycidae - Pachyta quadrimaculata (mating).JPG
Mating couple, covered with pollen

This species can be found in the coniferous forests and on forest paths of Europe. [4]

Description

Adult beetles of Pachyta quadrimaculata can reach a body length of about 11 to 22 mm, [1] [4] but females have a more compact body than males. These beetles have a black body and show straw-yellow elytra with four large black spots, two spots on each elyton. Said two spot can occasionally be fused with one another, and there are also individuals who only wear one patch per wing. The head and the pronotum are long, with protruding yellow hairs. Elytra and the pronotum are rather dotted.

Biology

Adults flight period, when the fully formed beetles can be found, extends from mid-June until the beginning of August. The life cycle for imago reaches three years. [4] These beetles usually visit flowers, especially flowering shrubs and Apiaceae flowers. Larvae develop in coniferous wood. They live in superficial dead pine roots and possibly also in dead spruce roots. They mainly feed on Scots Pine ( Pinus sylvestris ) and on Norway Spruce ( Picea abies ). [1]

Bibliography

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References

  1. 1 2 3 4 5 BioLib Taxon profile — species Pachyta quadrimaculata (Linnaeus, 1758)
  2. Hallan, Joel, Synopsis of the described Coleoptera of the World. Biology Catalog. Texas A&M
  3. Fauna Europaea
  4. 1 2 3 Longhorn beetles (Cerambycidae) of the West Palearctic region