banstie's picture

Harlequin ladybird?

Observed: 9th October 2011 By: banstiebanstie’s reputation in Invertebratesbanstie’s reputation in Invertebratesbanstie’s reputation in Invertebrates
Harlequin ladybird?
Harlequin ladybird? 1
Description:
Identifications
Species interactions

No interactions present.

Comments

BDeed's picture

Scientific name

You may want to add a revision with the scientific name, Harmonia axyridis.

This spot also seems to quite resemble the form succinea, it'd be interesting to learn more about forms if there is an expert about?

rimo's picture

It is indeed form succinea: a

It is indeed form succinea: a perfectly-marked individual, with 9 black spots on each elytron and a shared scutellary spot. There are 3 forms in Britain: succinea (as here), conspicua (black, with 2 red spots) and spectabilis (black with 4 red spots).

Further to that, succinea actually has a weak and a strong form: the strong form is shown here, with the 19 (or occasionally more) spots, which can sometimes fuse together. The weak version does not have all the spot locations 'coloured in', and some have no spots at all.

These forms are genetically determined, but the environment also plays a role - individuals which develop as larvae, and in particular pupae, in cold conditions lay down more melanin, and so come out darker. I found a couple of pupae in mid-December 2010, when the temperatures were down to -10 at night, and they were almost completely black when they emerged, despite being form succinea

Record your ladybird sightings!
www.harlequin-survey.org
www.ladybird-survey.org

banstie's picture

Harlequin ladybird

Thank you. That's really interesting. I have already submitted it to the harlequin survey but not the other. Should I do both?

rimo's picture

They both go the the same

They both go the the same database, so as you've already sent it to us once there's no need to do so again!

Record your ladybird sightings!
www.harlequin-survey.org
www.ladybird-survey.org