As if a grinning skeleton riding a scythe weren't fearsome enough ... he's also hurling, um ... umbrellas? This pesky wraith made an appearance on the Hornisse decal sheet and camo cards as the insignia for the 41st Combat Air Force (JG-41).
Historically it was actually the unit symbol of 4. Staffel, II. Gruppe, JG 77 ... a typical example of which can be seen here. The umbrella being wielded by the wraith was another of the Luftwaffe's personal attacks on Neville Chamberlain (see post 'Umbrella Man').
More information about JG 77 to be found here