Figure 1. A juvenile Nepenthes bicalcarata showing leaf structure (photosynthetic phyllode, tendril and trap [here a lower pitcher]).

The upper left inset shows a worker of Camponotus schmitzi feeding on nectar from one of the two “fangs” characterizing N. bicalcarata. The middle left inset shows workers of C. schmitzi in ambush beneath the peristome. The lower insets show workers (left) and brood (right) of C. schmitzi, respectively, on the peristome and in the hollow and swollen apical part of the tendril, i.e. the domatium. The upper right inset shows the Nepenthes-specific weevil, Alcidodes sp. copulating and feeding on a pitcher bud.