Stonefly

Stonefly

Observation - Stonefly. Description: Some of many nymphs found in kick-samples taken from the River Taff, near Pontypridd, during a Gwyl Taf survey. Believe picture 3 shows a fly that emerged from one of the nymphs during examination of the sample.

Some of many nymphs found in kick-samples taken from the River Taff, near Pontypridd, during a Gwyl Taf survey. Believe picture 3 shows a fly that emerged from one of the nymphs during examination of the sample.