Milvus's picture

Three for the price of ...

Observed: 4th June 2011 By: MilvusMilvus’s reputation in InvertebratesMilvus’s reputation in Invertebrates
IMG_1451
Description:

Water Scorpion, Great Diving Beetle and a marshland 'water-walking' spider (quite large, up to 10mm), what is the latter species?

Identifications
Species interactions

No interactions present.

Comments

Matt Smith's picture

Beetle

The beetle looks far too small to be a Great Diving beetle - either that or the Water Scoprpion is absolutely huge. The brown elytra and black pronotum suggest a species like Agabus congener or similar.

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Milvus's picture

Thanks for that folks. Alan,

Thanks for that folks.

Alan, I had thought that the spider looked like Pirata piraticus, but it seemed much too large, so was uncertain as to suggest this (certainly looks 'about right' - what precision from me)?

Matt - on relative sizes, I suspect that the water is deeper than apparent, and that there is a little distance between the beetle and the scorpion. Nonetheless, I take your thoughts very much on board.

Thanks again.

Matt Smith's picture

Beetle

If the beetle is further away than appears (ie is larger than first thought) then Colymbetes fuscus is the next best guess as a probably ID, the colours are just wrong for any kind of Dytiscus species.

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