Figure 2 in Behavior and nest architecture of the bee Caenohalictus alexandrei (Hymenoptera, Halictinae)

Figure 2. Nesting sites of C. alexandrei on earth banks in Colombia. (A) nesting site Z (Zipaquirá – San Jorge); (B) nesting site C (Cajicá – UMNG); (C-D) Red arrows indicate the entrance of the nest in the earth banks.