Graphosoma italicum

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Graphosoma italicum
Graphosoma italicum - Kulna.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Heteroptera
Family: Pentatomidae
Genus: Graphosoma
Species:
G. italicum
Binomial name
Graphosoma italicum
(Müller, 1766)
Synonyms
List
  • Cimex italicusMüller, 1766
  • Cimex nigrolineatusFabricius, 1781
  • Tetyra schanginiGebler, 1817
  • Scutellara lineata v. flavipesMulsant & Rey, 1865
  • Graphosoma lineatum v. reductumHorváth, 1901
  • Graphosoma italicum v. ochraceumRoyer, 1923
  • Graphosoma italicum v. obscurumStipanek, 1926
  • Graphosoma italicum f. soosiHalaszfy, 1953
  • Graphosoma italicum v. nigriscutellatumHalaszfy, 1955
  • Graphosoma italicum f. flavolineatumHalaszfy, 1955

Graphosoma italicum is a species of shield bug in the family Pentatomidae. It is also known as the striped bug (or Italian striped bug) and minstrel bug.

Contents

Description

G. italicum can reach a length of 8–12 mm (0.31–0.47 in). The body is almost round, with a large shield. The basic color of the upperside of the body is red, with wide black longitudinal stripes. The pronotum has six black bands. The antennae are black. Also the sides of the abdominal segments (connexivum) are red with many small black spots. The legs are mostly black, which distinguishes it from its relative, G. lineatum .

Taxonomy

Graphosoma italicum had been regarded as either a subspecies, or a synonym, of G. lineatum for over 100 years, so nearly all of the existing literature prior to 2007 referred to this species under the name lineatum. The validity of G. italicum was reestablished via DNA analysis, which demonstrated that the sister species to G. italicum is G. rubrolineatum , while G. lineatum is more closely related to G. semipunctatum . [1] [2] [3]

Subspecies

Similar species

Distribution

G. italicum is distributed across the Western Palearctic and occurs in the entire Mediterranean area, with the northern limit of distribution fluctuating strongly. In recent decades, the northern border in western and central Europe has expanded strongly to the north, so that the species now occurs as far as the North Sea and Baltic Sea (Jutland and southern Finland). In Germany, the type occurs everywhere with exception of the northwest and is not rare regionally. In Austria, it is widespread, but only locally frequent. The insects populate open to half-shady areas in dry to more humid habitats. The subspecies G. i. sardiniensis occurs only in Sardinia.

Biology

G. italicum is an insect of warm and sunny areas. It prefers warm slopes and meadows located on south-facing slopes. The orange and black warning colours (aposematism) indicate that the insects are foul-tasting, protecting them from predators. The nymphs do not have the orange-black stripe pattern, instead they are mostly brownish. These shield bugs are frequently found on the umbels of Apiaceae ( Daucus , Heracleum , Anthriscus , Foeniculum , etc.), plants which themselves are chemically-protected.

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<span class="mw-page-title-main">Pentatomidae</span> Family of insects

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<i>Graphosoma lineatum</i> Species of true bug

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<i>Carpocoris mediterraneus</i> Species of true bug

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<i>Eurydema oleracea</i> Species of true bug

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<i>Spilostethus pandurus</i> Species of true bug

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<i>Apodiphus amygdali</i> Species of true bug

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<i>Carpocoris purpureipennis</i> Species of true bug

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<i>Carpocoris pudicus</i> Species of true bug

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<i>Graphosoma semipunctatum</i> Species of true bug

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<i>Peribalus strictus</i> Species of true bug

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<i>Monteithiella humeralis</i> Species of shield bug of the family Pentatomidae

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References

  1. Ribes, J., Pagola-Carte, S. & Zabalegui, I. (2008) On some Palearctic Carpocorini (Hemiptera: Pentatomidae: Pentatominae). Heteropterus Revista de Entomología 8(2): 155-169.
  2. R. Lupoli & F. Dusoulier (2006) Les Punaises Pentatomoidea de France. Ancyrosoma ISBN   9782953666113
  3. 1 2 R. Lupoli, Graphosoma lineatum (L., 1758) and G. italicum (O.F. Müller, 1766), two valid and distinct species, probably derived from the Zanclean mediterranean transgression (Hemiptera Pentatomidae). L'Entomologiste T73 n°1 (2017) pp. 19-33.