Andy Pandy wrote:

' Name that bug ' for a mystified friend.

Seen SW France, early June. 4 cm wing span. 3 cms long.

http://home.clara.net/andycoleman/bug.jpg

Or perhaps a pointer to a more appropriate NG.

TIA Andy

From the pattern on the wings I'd guess at Libelloides coccajus or L.
longicornis.

Jo in sunny Spain