In the catch-all survey, on both wings all the craters of 0.1 mm were recorded for a total surface area of 0.45 m2.
Images taken with HIROX Video-microscope on both –V2 and +V2 wings for a surface of about 0.5 m2.
Scanning performed with a Nikon high resolution digital camera of 6 Mbyte interfaced to a distributed computer system and data logged on DVD discs.
Images taken with a Scanning Electron Microscope.
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