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Tritomegas sexmaculatus
Rambur's Pied Shieldbug
Family: Cydnidae

This species was first found in Britain during 2011 at two sites in Kent, following range expansion on the continent. There have since been further records from this county.
It is very similar to T. bicolor and feeds on the same host plants. Adults of T. sexmaculatus are best separated by:

-More extensively white margins of the pronotum
-A much darker (black) wing membrane

Final instar nymphs are much darker on the forebody than those of T. bicolor.

In all cases, bugs were associated with black horehound, the most frequent foodplant on the continent.

Adult: All year
Length 5.5-7.5 mm


Tritomegas sexmaculatus
Adult: Kent (August 2011) ©Tristan Bantock

Tritomegas sexmaculatus Tritomegas species
Adult: Kent (August 2011) ©Jason Elmore

Adult T. bicolor (top) and T. sexmaculatus (below)

Tritomegas sexmaculatus Tritomegas sexmaculatus
Late instar nymph: Kent (August  2011) ©Tristan Bantock

Late instar nymph: Kent (August 2011) ©Jason Elmore