Xanthochilus saturnius

Xanthochilus saturnius, the Mediterranean seed bug, is a species of true bugs belonging to the family Rhyparochromidae.[1]

Xanthochilus saturnius
Xanthochilus saturnius
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Hemiptera
Suborder:
Heteroptera
Infraorder:
Pentatomomorpha
Superfamily:
Lygaeoidea
Family:
Rhyparochromidae
Genus:
Xanthochilus
Species:
X. saturnius
Binomial name
Xanthochilus saturnius
(Rossi, 1790)
Synonyms
  • Rhyparochromus saturnius (Rossi, 1790)
  • Cimex saturnius Rossi, 1790

Xanthochilus is sometimes considered a subgenus of Rhyparochromus, in which case this species is called Rhyparochromus saturnius or Rhyparochromus (Xanthochilus) saturnius.[2][3]

Distribution

This species is present in southern Europe (Bosnia and Herzegovina, Croatia, European Turkey, France, Greece, Italy, North Macedonia, Portugal, Slovenia, Spain, Bulgaria, South European Russia) and in the Nearctic realm (Greenland, Canada, USA and northern Mexico).[4][5]

Description

Xanthochilus saturnius can reach a length of 6–8 millimetres (0.24–0.31 in).[3] These small true bugs have distinctive markings of black-on-tan. The head and scutellum are black, while pronotum shows a large black band and a band of stippled brown. Elytra are brown, with two black spots. Membrane has a large black mark too.[6]

Biology

Adults of these bugs overwinter in gregarious clusters. They emerge in spring (April or May). Adults and larvae feed together on the same plant and on fallen seeds. New adults can be seen by July. Main host plants are Stachys species and other Lamiaceae, and Scrophulariaceae (Verbascum lychnitis).[6]

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References
  1. Biolib
  2. Dellapé, Pablo M.; Henry, Thomas J. (2019). "genus Rhyparochromus Hahn, 1826". Lygaeoidea Species File. Retrieved 2019-06-19.
  3. Fauna europaea
  4. Thomas J. Henry and David Adamski Rhyparochromus saturnius (Rossi) (Heteroptera: Lygaeoidea: Rhyparochromidae), a Palearctic Seed Bug Newly Discovered in North America Journal of the New York Entomological Society - Vol. 106, No. 4 (Winter, 1998), pp. 132-140
  5. Sharon J. Collman and Michael R. Bush Emerging Pests in Pacific Northwest Ornamentals Pacific Northwest Insect Management Handbook


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