| Color code and Abbreviations |
| Queen without information : EO520B38(LB) EO520 |
Queens from one strain, but mated by drones from another strain . Their population and daughters (and drones of them) are F1 crossed. |
| Queen and/or Drones have unknown exact origin : that makes unable to find their real status. |
| Queen and Drones result of a cross between two different lines : interesting to increase their resistance and qualities. |
| Breeders |
| AS : | Alfred & Sabine Schrüfer (DE) |
| GEK : | Günter Eckardt (DE) |
| PJ : | Paul Jungels (LU) |
|
| Races — Do use them |
| B: | buckfast |
| O: | (EL) monticola Elgon |
|
| Importation mode |
| imq : | Laying queen imported |
| Mating Places, etc |
| inag : | Instrumental insemination (DE) |
| inas : | Instrumental insemination (DE) |
| valn : | Valen (Hjämaren lake) (SE) |
| wbg : | Weißberg-Rennsteig (DE) |
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