Figure 4 in Solitary and semisocial behaviour in the Corynura group: new findings in a clade sister to all other Augochlorini bees (Hymenoptera: Halictidae)

Figure 4. Corynura bruchiana, nesting bank in Lake Paimún, Neuquén. (a) Vertical bank with nests; (b) entrances of the nests; (c) exposed, old, earthen block with cells. Half of the block is missing, resulting in the transversal cut of two cells, and the longitudinal cut of another one; (d) earthen block in a chamber, with some cornstarch that was blown in to follow the tunnel; (e) ovoid block, with cells irregularly orientated. The longitudinal axis of the broken cell is approximately 100 degrees from those of the open cells; (f) cell containing a dead larva. Scale bars: b = 5 cm; c, d = 1 cm; e, f = 5 mm.