#Coreus

2025-10-01

The #dockbug #Coreus #marginatus (#Coreidae) is distributed from Europe to Asia. In #CentralEurope, it undergoes one generation per year, with the adults spending their #winter #diapause in hidden places. From October onwards, it can be found e.g. on the underside of #deadwood, as seen here in #Berlin's park Rehberge. T. O. Markova et al. (2020) did studies on the ecology of the #FarEast #subspecies C. m. orientalis.

©#StefanFWirth Bln 2025

Ref
doi.org/10.1134/S0013873820050

Photos
© S.F. Wirth

The dock bug Coreus marginatus (Coreidae) is common in Europe. Adults feed on seeds in different food plants, while the five nymphal instars suck on leaves and other plant tissue. In autumn, when the meadows might be still having a few blooming plants, an insect emptyness can increasingly be observed. It is the time, when many of them can already be found in their winter quarters, where they spend their diapsuse during the cold season. Only a few insects can be winter active, e.g. some stoneflies. 
The dock bug overwinters as adult in leaf litter or deadwood. I found this specimen on the underside of deadwood in a small forest area. © Stefan F. Wirth, urban Park Rehberger, Berlin, October 2025The dock bug Coreus marginatus (Coreidae) is common in Europe. Adults feed on seeds in different food plants, while the five nymphal instars suck on leaves and other plant tissue. In autumn, when the meadows might be still having a few blooming plants, an insect emptyness can increasingly be observed. It is the time, when many of them can already be found in their winter quarters, where they spend their diapsuse during the cold season. Only a few insects can be winter active, e.g. some stoneflies. 
The dock bug overwinters as adult in leaf litter or deadwood. I found this specimen on the underside of deadwood in a small forest area. © Stefan F. Wirth, urban Park Rehberger, Berlin, October 2025The dock bug Coreus marginatus (Coreidae) is common in Europe. Adults feed on seeds in different food plants, while the five nymphal instars suck on leaves and other plant tissue. In autumn, when the meadows might be still having a few blooming plants, an insect emptyness can increasingly be observed. It is the time, when many of them can already be found in their winter quarters, where they spend their diapsuse during the cold season. Only a few insects can be winter active, e.g. some stoneflies. 
The dock bug overwinters as adult in leaf litter or deadwood. I found this specimen on the underside of deadwood in a small forest area. © Stefan F. Wirth, urban Park Rehberger, Berlin, October 2025
2025-06-26

The #dockbug #Coreus #marginatus (#Coreidae, #Heteroptera) is distributed from Europe to Asia and parts of Africa. It feeds e.g. on docks and sorrels. After 5 nymphal #instars, the bug overwinters as adults. Authors Pekár, S., Hrušková, M. (2006) found that the #bugs use all three of their #senses to #recognize their #food: eyes, antennae, and labial sensillae.

© #StefanFWirth Berlin June 2025

Reference
Pekár, S., Hrušková, M. (2006) doi.org/10.1007/s10211-006-001

Photos
© S. F. Wirth Bln 2025

Dock bug urban park Rehberge Berlin, © Stefan F. Wirth June 2025Dock bug urban park Rehberge Berlin, © Stefan F. Wirth June 2025Dock bug urban park Rehberge Berlin, © Stefan F. Wirth June 2025
2024-04-30

Heute nachmittag habe ich Blattwanzen beobachtet. Sie lieben die Knoblauchsrauke #AlliariaPetiolata ich fand mindestens vier Arten, darunter die Lederwanze #coreus marginatus, die Streifenwanze #graphosoma lineatum und die Kohlwanze #eurydema oleracea
Alle Wanzen können erstaunlich gut fliegen.

Eine rotgestreifte, gedrungene Wanze auf einem grünen BlattEine große lederbraune längliche Wanze mit langen Fühler auf einem grünen BlattEine schwarze rundlich Wanze mit zwei hellgrünen Punkten auf den Deckflügeln , auf einem grünen Blatt

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