Wildlife Photography and Digital Video Images
Beetles 86 – Two-spot Ladybirds
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRD Adalia bipunctata
TWO-SPOT LADYBIRDS Adalia bipunctata
TWO-SPOT LADYBIRDS Adalia bipunctata
TWO-SPOT
LADYBIRD Adalia bipunctata
·
The familiar Two-spot
Ladybird Adalia bipunctata suffered a
significant population crash in the UK following the arrival of the larger,
more fecund, and competitive alien Harlequin Ladybird Harmonia axyridis early this
century. However, there have been encouraging signs of recovery of the
Two-spotted recently, so perhaps some form of equilibrium is being achieved –
most native ladybird species with aphidophagous
adults and larvae have been out-competed by Harlequins as they can complete
their life cycles more rapidly. The majority of A. bipunctata
found by the photographer since the Harlequin invasion have been of the typical
two-spotted form. The final photograph illustrates a melanic variant closely
resembling the smaller Pine Ladybird Exochomus
quadripustulatus, and there
are many intermediate colour forms (e.g., ‘band’, ‘band and loop’) that have
not been included here. Also note the variation of the pronotal
markings. Some of these could be confused with the Ten-spot Ladybird
A. decempuntata, as this too
has a wide range of colour and pattern variants.
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