Bug of the Week: Harlequin Ladybird

The bug of the week is the harlequin ladybird. This ladybird has invaded from Asia, and is contributing the loss of native species throughout its range expansions. Work led by Richard Comont has demonstrated that the harlequin ladybird is ten times less likely to be parasitised than a common native species (the seven spot ladybird). This evasion is thought to be an important factor in explaining the rapid proliferation of this species. The harlequin ladybird has a wide variety of colour forms, and is known to aggregate indoors during cold spells.


Comont, R. F., Purse, B. V., Phillips, W., Kunin, W. E., Hanson, M., Lewis, O. T and Roy, H. E. 2013. Escape from parasitism by the invasive alien ladybird, Harmonia axyridisInsect Conservation and Diversity.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s