Arrenurus Securiformis male dorsal view
Pictures and description of an Arrenurus Securiformis male found in Saint Martin Au Laërt the 2 June 2011. Length about 1.1mm.
Written Arrhenurus (in the old manner) in Soar & Williamson.
Element used for the identification.
Following Soar et Williamson vol 3 page 141
Body.
- Length up to 1.2mm.
- Outline body like Arrenurus Caudatus.
- Fine granular appearance of the skin.
- Colour of posterior end of body blue and anterior of cauda blue, gradually shading off into a yellowish green.
- Distal end of the cauda a paler blue.
- Within the dorsal groove a pale yellow area with brown or reddish patches surrounding it.
- Palpi, epimera and leg blue.
Cauda.
- AAAA (work in progress)
A CHECK-LIST OF THE WATER MITES OF FRANCE
This water mite is already known in Pas de Calais and the other name indicated by Smit & Gerecke is Arrenurus (Megaluracarus) securiformis. Under this name, is seems that this specie was not found by Barrois & Moniez.
References.
- Soar, C. & Williamson, W (1928): The British hydracarina. Ray Society. Volume III. Page 141. Plates 46 – 53 – 54.
- Smit, H. & Gerecke, R. (2010): A cheklist of the water mites of France (acari: hydrachnidia). Acarologia 50(1): 21-91.
Other pictures.
Arrenurus Securiformis cauda from the top
Arrenurus Securiformis ventral view
Arrenurus Securiformis front view
Arrenurus Securiformis 2 first coxae plates
Nice mite! Sepcially the long tail in combination with the small round body. Thanks for pointing out the old Danish book. The author even shows Arrenurus mating (« glued » together)
Very cool macro-photography – do you use a camera attached to a microscope?