4. a) Clypeus with apical edge with a small median tubercle (Figure 7a) ..... M. (Pseudomegachile) ericetorum Lepeletier

b) Clypeus with apical edge bituberculate medially, with a distinct space between tubercles (Figure 7b) ..... 5

Figure 1a
Figure 1b

Figure 7a: Clypeus with a small median tubercle
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Figure 7b: Clypeus with a space between tubercles
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