Pronotal colour

Locating the pronotum and elytra

The pronotum is the large sclerite situated between the head and the elytra (Fig. 1).


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Pronotal colour

The pronotal and elytral colours vary relative to each other.

  1. Colours contrast: the colour of the pronotum is obviously different from the colouration of the elytra. In all species displaying this character the pronotum is much paler than elytra (Fig. 2A).

  2. Colours similar: colouration or patterning of the pronotum and the elytra are similar (Fig. 2B).