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The specimens were collected and destroyed every day by a non-professional in a 175 m2 garden in Metropolitan France, from November 2015 to May 2016. May 2016, only first 20 days. Data by Michel Hir.
| November | December | January | February | March | April | May (20 days) | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 477 | 414 | 110 | 107 | 52 | 232 | 50 | 1,442 |
| Mean/day | 19 | 17 | 6 | 6 | 4 | 11 | 8 | 10 |
