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Spike Shouldered Stink Bug - Picromerus bidens
Spike Shouldered Stink Bug - Picromerus bidens


Spike Shouldered Stink Bug
The Spike Shouldered Stink Bug (Picromerus bidens) is a species in the order true bugs (Hemiptera), the suborder typical bugs (Heteroptera), the infraorder Pentatomomorpha, the superfamily Pentatomoidea, and the family stink bugs and shield bugs (Pentatomidae).
This species is widespread in Europe and northern Asia.
Shield bug - Spike Shouldered Stink Bug
Shield bug - Spike Shouldered Stink Bug
Adult Picromerus bidens reach body lengths of 10 - 14 mm. Their bodies are dome shaped, strongly built and have a dark brown base colour. The legs and antennae (5 segmented) are reddish brown. On both sides of the pronotum, which has 2 emerging reddish points, is to find an acute brown, at its top end black thorn. Both sides of the pronotum have a pointy spine, which is blackish brown at the end, and a reddish spot. The scutellum is yellow at the end.
Bug - Picromerus bidens - Spike Shouldered Stink Bug
Bug - Picromerus bidens - Spike Shouldered Stink Bug
Picromerus bidens are found in hardwood forests, mixed forests, parks and gardens, where they prefer wet areas. The females lay their eggs in late summer or early autumn on the upper surface of plant leaves. The eggs overwinter there. The larvae hatch in the spring. They develop in 5 stages, each finishing with a moult. In summer, the adult bugs of the new generation appear. These feed on caterpillars, beetle larvae, other bugs or aphids.
Spike Shouldered Stink Bug - Rear view
Spike Shouldered Stink Bug - Rear view
Picromerus bidens - Rear view
Picromerus bidens - Rear view

Picromerus bidens
Common namesSpike Shouldered Stink Bug, Spiny Shieldbug, Spined Shieldbug, Spiked Shieldbug
German namesZweispitzwanze, Zweizähnige Dornwanze, Räuberische Schildwanze
Dutch namesTweetandschildwants
Danish namesTorntæge
Finnish namesParihammaslude, Piikkilude
Swedish namesSpetsrovbärfis
French namesPunaise épineuse
AuthorCarl von Linné (Carl Nilsson Linnæus), 1758
Distribution
Continents:

Eurasia
Europe
North Europe (British Isles (United Kingdom (Great Britain (England (English Midlands (East Midlands (Leicestershire))))), Ireland), Germany (West Germany (North Rhine-Westphalia)), Scandinavia (Norway, Sweden, Denmark), Fennoscandia (Finland (Åland Islands)), Baltic region (Baltic States (Estonia))), West Europe (Austria, France, Benelux (Belgium, Netherlands, Luxembourg)), South Europe (Italy (Italy Islands (Sicily), North Italy, South Italy)), Central Europe (Hungary, Poland, Czech Republic (Moravia, Bohemia), Slovakia)
Asia
Far East (East Asia (Korea (South Korea))), North Asia
Russia
Siberia
America
North America
Canada (Ontario), USA
Africa


Ecozones: Nearctic

CountriesAustria, Belgium, Canada, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Russia, Slovakia, South Korea, Sweden, USA, United Kingdom
Links and ReferencesPicromerus bidens in faunaeur.org
Picromerus bidens in itis.gov
Picromerus bidens in dyntaxa.se
Picromerus bidens in Wikipedia (English)

Description of images / photos
Photography with Cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop
1. Spike Shouldered Stink Bug - Picromerus bidens
2. Shield bug - Spike Shouldered Stink Bug
3. Bug - Picromerus bidens - Spike Shouldered Stink Bug
4. Spike Shouldered Stink Bug - Rear view
5. Picromerus bidens - Rear view
Quick search: Bug - Stink - Spike - Beetle - Bugs - Spikes
Back - Shield - Picromerus - Brown - Green - Europe - True - Yellow
Taxonomy
ClassInsecta
Insects, True insects
SubclassPterygota
Winged insects
InfraclassNeoptera
Wing-folding insects
SuperorderHolometabola
Holometabolous Insects
OrderDiptera
True flies, Mosquitoes, Gnats, Flies
SuborderBrachycera
Short-horned flies, Muscoid flies, Circular-seamed flies, Flies
InfraorderMuscomorpha
SectionSchizophora
SubsectionAcalyptratae
Acalyptrate muscoids
SuperfamilyTephritoidea
FamilyPlatystomatidae
Signal flies, Picture-winged flies
GenusPicromerus
Speciesbidens
Picromerus bidens
Spike Shouldered Stink Bug, Spiny Shieldbug, Spined Shieldbug, Spiked Shieldbug
AuthorLinnaeus, 1758
 
Synonyms
Cimex bidens
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Keywords
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German Flag Zweizähnige Dornwanze
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