Figures 12.3


Worker bees from three eusocial genera, from left, Bombus, Apis, and Trigona (Apidae: Apinae), superficially resemble each other in morphology, but they differ in size and ecology, including their pollination preferences and level of eusociality.
Figures 12.3. Worker bees from three eusocial genera, from left, Bombus, Apis, and Trigona (Apidae: Apinae), superficially resemble each other in morphology, but they differ in size and ecology, including their pollination preferences and level of eusociality.

(After various sources, especially Michener 1974)

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  Cladogram showing probable relationships among selected aculeate Hymenoptera to depict the multiple origins of sociality (SOL, solitary; SUB, subsocial; EU, eusocial).
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  The hind leg of a worker honey bee, Apis mellifera (Hymenoptera: Apidae):