Carmarthenshire — county
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 2,228
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,223
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,218
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,218
- Group
- True flies
- Peak month
- May
- Records since 2000
- 2,174
- Group
- True flies
- Peak month
- August
- Records since 2000
- 2,153
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,121
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,119
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,103
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,091
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,083
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 2,069
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 2,052
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 2,046
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,037
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 2,027
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 2,020
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,013
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,005
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 2,004
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,002
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 1,999
- Group
- Mosses
- Peak month
- September
- Records since 2000
- 1,993
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,984
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 1,975
- Group
- Stoneflies
- Peak month
- September
- Records since 2000
- 1,953
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,919
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 1,909
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 1,901
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 1,872
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 1,872
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 1,857
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 1,850
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 1,848
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 1,846
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,833
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,809
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,769
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 1,735
- Group
- Mammals
- Peak month
- October
- Records since 2000
- 1,733
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 1,727
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 1,727
- Group
- Mayflies
- Peak month
- May
- Records since 2000
- 1,718
- Group
- Liverworts
- Peak month
- June
- Records since 2000
- 1,703
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 1,696
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 1,695
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 1,691
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 1,689