"In the Wet" is an occasional blog to inform you about life in Gillfield Wood in those wet places such as Totley Brook and any marshy area or tributaries close by the brook. And of course there is our new pond which I am beginning to monitor.  I will give you a details of the aquatic invertebrates that I find but only when I can identify them! This is very much a learning and sharing activity for me.  I hope you find the information interesting and the photographs illustrative of my findings.  Please email comments to me at paulhancock1954@gmail.com.

 

Welcome to "In the Wet".

 

Paul Hancock

In the Wet #1 (May 15 2016)

 

Had a chance to investigate the pond for wildlife today.  The tadpoles are doing well; they are well spaced in the shallow areas. The planted marginals are looking strong and healthy.

 

Observation of the pond showed it to be somewhat murky, which was in stark contrast to Andy Brewster's observations yesterday of clear but algae-littered water. Derek Bateson suggested we may have had a Duck feast to have altered the water so much!

 

Male and female flies of the family Bibionidae (St Mark's Flies) were hovering over the pond.  Some were clearly female as they were dipping their abdomens in the water to deposit eggs.

 

Two types have been identified by the spurs on the end of the tibia of the foreleg.

Opposite is the female - Dilophus species – identified  the ring of short spurs on the foreleg.

This male fly has two large spurs in the same location on the foreleg and belongs to the genus Bibio, possibly marci, which is the St Mark's fly.

We also have a water beetle visitor, Helophorus grandis …

… and a mayfly visitor Baetis rhodani. The latter has weird turbinate eyes which are orange on top.

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