FIGURE 1 in The neotropical stingless bee genus Nannotrigona Cockerell (Hymenoptera: Apidae: Meliponini): An illustrated key, notes on the types, and designation of lectotypes

FIGURE 1. Nest of Nannotrigona melanocera (Tarapoto, Peru): A. Colony adapted to a polystyrene nesting box. Often, colonies of this species fill the empty parts of the box with abundant short pillars and connectives, thus omitting the batumenlike lining surrounding the brood combs. B. A worker bee finishing construction of a brood cell. C. The top of the spiral formed brood comb. D. A regular entrance, about five years old, which has been expanded and leaving the newest and apical wax lighter. E. Unlike most stingless bee genera, workers of Nannotrigona seal with wax the nest entrance at sunset. In this picture the entrance is partly closed. F. Completely closed nest entrance.