Picromerus bidens (Linnaeus, 1758)
(Spined Shieldbug, Spiked Shieldbug)

Interactions where Picromerus bidens is the dominant partner and gains from the process

The following relationships have been collated from the published literature (see 'Interaction References').

Stage Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season
adult adult is predator of larva Major CHRYSOMELIDAE leaf and flea beetles Coleoptera Land and Water Bugs of the British Isles, Southwood, T.R.E. & Leston, D., 1959
 /Animalia/Arthropoda/Insecta/Hemiptera/Pentatomidae/Picromerus bidens/Picromerus bidensspined shieldbug, spiked shieldbugadult Animal / predator /Animalia/Arthropoda/Insecta/Coleoptera/Chrysomelidae/Chrysomelidaeleaf and flea beetleslarvaMajor
nymph (3rd instar onwards) (solitary) solitary nymph (3rd instar onwards) is predator of larva Major CHRYSOMELIDAE leaf and flea beetles Coleoptera Land and Water Bugs of the British Isles, Southwood, T.R.E. & Leston, D., 1959
 /Animalia/Arthropoda/Insecta/Hemiptera/Pentatomidae/Picromerus bidens/Picromerus bidensspined shieldbug, spiked shieldbugsolitarynymph (3rd instar onwards) Animal / predator /Animalia/Arthropoda/Insecta/Coleoptera/Chrysomelidae/Chrysomelidaeleaf and flea beetleslarvaMajor
adult adult is predator of caterpillar Major LEPIDOPTERA butterflies and moths Land and Water Bugs of the British Isles, Southwood, T.R.E. & Leston, D., 1959
 /Animalia/Arthropoda/Insecta/Hemiptera/Pentatomidae/Picromerus bidens/Picromerus bidensspined shieldbug, spiked shieldbugadult Animal / predator /Animalia/Arthropoda/Insecta/Lepidoptera/Lepidopterabutterflies and mothscaterpillarMajor
nymph (3rd instar onwards) (solitary) solitary nymph (3rd instar onwards) is predator of caterpillar Major LEPIDOPTERA butterflies and moths Land and Water Bugs of the British Isles, Southwood, T.R.E. & Leston, D., 1959
 /Animalia/Arthropoda/Insecta/Hemiptera/Pentatomidae/Picromerus bidens/Picromerus bidensspined shieldbug, spiked shieldbugsolitarynymph (3rd instar onwards) Animal / predator /Animalia/Arthropoda/Insecta/Lepidoptera/Lepidopterabutterflies and mothscaterpillarMajor
nymph (1st and 2nd instars) (gregarious) gregarious nymph (1st and 2nd instars) sucks sap of [Xylophytes] broadleaved trees, shrubs and woody climbers Land and Water Bugs of the British Isles, Southwood, T.R.E. & Leston, D., 1959
 /Animalia/Arthropoda/Insecta/Hemiptera/Pentatomidae/Picromerus bidens/Picromerus bidensspined shieldbug, spiked shieldbuggregariousnymph (1st and 2nd instars) Foodplant / sap sucker /Plantae/Tracheophyta/Magnoliopsida/Xylophytes/Xylophytesbroadleaved trees, shrubs and woody climbers

Author & YearTitleSource
Southwood, T.R.E. & Leston, D., 1959Land and Water Bugs of the British IslesWayside & Woodland Series, 1959 edition, 436pp, Frederick Warne & Co. Ltd.

Picromerus bidens (Spined Shieldbug, Spiked Shieldbug) may also be included in 'feeds on' relations listed under the following higher taxa:

Picromerus bidens (Spined Shieldbug, Spiked Shieldbug) may be included in 'fed on by' relations listed under the following higher taxa:

Taxonomic hierarchy:
SpeciesPicromerus bidens (Spined Shieldbug, Spiked Shieldbug)
SubfamilyAMYOTEINAE (predatory shieldbugs)
FamilyPENTATOMIDAE (a family of shieldbugs)
SuperfamilyPENTATOMOIDEA (shieldbugs)
InfraorderPentatomomorpha (an infraorder of bugs)
SuborderHETEROPTERA (true bugs)
OrderHEMIPTERA (bugs)
Division Exopterygota (earwigs, grasshoppers, stoneflies, true bugs, and other insects with wings developing externally)
InfraclassNeoptera (bees, beetles, flies, grasshoppers, moths and other advanced insects)
SubclassPTERYGOTA (bees, beetles, dragonflies, flies, grasshoppers, moths and other winged insects)
ClassINSECTA (true insects)
SubphylumHEXAPODA (insects and other 6-legged organisms)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Picromerus bidens (Spined Shieldbug, Spiked Shieldbug)

Picromerus bidens (Spined Shieldbug, Spiked Shieldbug) may be included in identification literature listed under the following higher taxa:

Literature listed under the following higher taxa may be relevant to Picromerus bidens (Spined Shieldbug, Spiked Shieldbug):

BioImagesBioImages (www.bioimages.org.uk) has 7 images of Picromerus bidens (Spined Shieldbug, Spiked Shieldbug)
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