Green shield bug

Palomena prasina

The green shield bug is a shield bug of the family Pentatomidae. It may also be referred to as a green stink bug, particularly outside of Britain, although the name green stink bug more appropriately belongs to the larger North American stink bug, ''Acrosternum hilare''.
Palomena prasina hatched 1hr Part of a series of early development in Palomena prasina nymphs:

A few days before hatching the eyes and other structures become visible inside the eggs:
When hatching the Palomena kids come out pale greenish:
After an hour they already have more colour:
7 hours later all have hatched and colour is already beginning to change to yellowish hues:
Soon the nymphs will wander off and leave the empty shells behind:
After a few days they become darker reddish brown
After this, they will moult into a 2nd instar nymph, starting out pale green again ... Eggs,Green shield bug,Hemiptera,Heteroptera,Nymph,Palomena,Palomena prasina,Pentatomidae,nl: Groene schildwants


The adult green shield bug ranges in the colour of their backs from bright green to bronze, without any substantial markings.
Green shield bug - 2nd instar, Heesch, Netherlands Reference for lifecycle of this species:

On an unrelated note, at this time of writing we've documented exactly 1,000 hemiptera (true bugs): Diffuser,Europe,Green shield bug,Heesch,Netherlands,Palomena prasina,World,the Netherlands


Green shield bugs are a very common shield bug throughout Europe, including the British Isles, and are found in a large variety of habitats, including gardens. They have been found as far north as 63° N latitude.
Palomena prasina - getting ready for winter Green shield bug starting to change colour to brownish for winter camouflage Geotagged,Green shield bug,Hemiptera,Heteroptera,Netherlands,Palomena,Palomena prasina,Pentatomidae,nl: Groene schildwants


In Europe, the bright green shield bugs appear in May, having hibernated as imagos during the winter. They fatten for a month and then mate in June. Copulation is back-to-back in typical Heteropteran mating position, as they are not flexible enough for both to face forward. The female lays her eggs in hexagonal batches of 25 to 30, and a single female will lay three to four batches. The imago's colouration changes over the summer from green to a greenish brown almost a bronze, before death. After the eggs hatch, the green shield bug enter their larval stage where, in general, they remain together in sibling communities. This is made possible by the excretion of an aggregation pheromone. In case of danger, another pheromone is released which causes dispersal. The larval stage is followed by four more nymphal stages with a moult between each one. The green shield bug displays different colouration during each nymphal stage, light brown, black or green-black, and in the final stage, the imago, is bright green with short wings. Usually the imago stage is reached in September, with hibernation occurring in November.


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