Teifi Invertebrates
Some of the river life from the lower Teifi collected at Allt Y Bwla in late October 2007
Allt Y Bwla
Aphelocheirus aestivalis, the Saucer Bug pictured from above .....................
.......and from below, showing the hollow spike it uses to impale and drain its prey
A caseless caddis, Rhyacophilidae, the pupa of a sedge fly
A Heptagenid Nymph, in this case from the Heptagenia Sulphurea, the Yellow May Dun, a fly commonly seen through most of the season on the Teifi.
Heptagenid Nymph
Stonefly nymph
Heptagenid Nymph
Heptagenid Nymph
Heptagenia sulphurea, detail of gills.
Olive nymph
Grannon, Abercych, April '08
From the intertidal zone
Pictured below, some of the river life from the tidal water just below Cilgerran Gorge. The river bed here is entirely paved in slate waste, spoil from the old Cilgerran quarries. So much of the waste remains that it has a profound effect on the tide which used to run up to Cenarth but now stops at Llechryd Bridge several miles downstream due to the volume of water it displaces.
The lower end of the Cilgerran gorge
Probably a flounder?
Shrimps diving away from the light as a stone is turned over
A mating pair - note the red "hot spot" imitated in fly tying.
Yours truly.....