Specialises in well vegetated ponds, lakes, canals etc.

Frequently in woodlands.

Will tolerate acidic waters.

Most common in south-east England and central Ireland but increasing its range.

May be confused with other Darter species, the most common other species being the Common Darter.

Ruddy Darter can be distinguished by:

• Black legs
• Black line marking extends part way down the side on the frons (face).
• Male: blood-red coloration and club-shaped abdomen.