| 11-1(2) | 11-2(1) | ||||
| S6 retracted under S5 except for apex, metasomal venter thus appearing to be five-segmented | ![]() |
Large image | S6 more fully exposed, the metasomal venter thus recognizably six-segmented | ![]() |
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| Apex of S6 bilobed, bifurcate, or produced to median spine, frequently bearing rows or clumps of stiff setae | ![]() |
Large image | Apex of S6 not modified as above | ![]() |
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Nomadinae (Apidae) |
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