Left to their own devices my Dionaea grown outdoors catch two or three insects per plant per growing season - flies, spiders, earwigs are standard fair. Once in a great while a crane fly or honey bee gets caught.
This 'Justina Davis' is an over-acheiver:
Maybe the lack of red coloration is an advantage?
This 'Justina Davis' is an over-acheiver:
Maybe the lack of red coloration is an advantage?