Ladybirds the Answer

I wrote about some strange ladybirds (click to read) I came across outside the home here in Norbiton Hall.

Norbiton Hall, Kingston upon Thames, the hedgerow where the Harlequin ladybirds were found


After some research and people giving me information, I now know that these ladybirds are called Harlequin Ladybirds, part of the Coccinellidae family and they take the name Harmonia axyridis, the most invasive ladybird on Earth.

Harlequin Ladybirds,  Harmonia axyridis

It appears that they can take-on many guises or patterns, and I have seen a few on the hedgerow outside the apartments, but when I go to get my camera, by the time I get back, they have gone.

 

 
Harlequin ladybird in different guises patterns and colours

The Harlequin emerges from the pupa, and leaves the shell behind as per the picture above with the Harlequin Ladybird without any spots.

Harlequin ladybird pupa


The larva is such a strange insect, the likes I had never seen before.

 
Harlequin ladybird larva


These Harlequin ladybirds arrived in the UK only a few years ago, in 2004, and are spreading rapidly throughout the UK, including Scotland and Northern Ireland in 2007.

They are native of Eastern Asia, and were introduced into the rest of the world, as a biological control agent against aphid and scale infestations. 

Although probably not introduced into the UK as a control, they may have found their way by hitching a ride on the new EuroStar train service from mainland Europe, through the Channel Tunnel or via the many cut flowers imported from Holland.

Concerns about the Harlequin Ladybirds are that they are more aggressive to the British native species, and being that they like buildings, people find their homes invaded.