He was Leutnant Werner Boden, fighter pilot, born 21/04/1921, died 25/10/1942 and now resting in Vault 6 at El Alamein German War Cemetery, according to Volksbund.de. The photo appears to be a field cemetery, so he must have been reinterred after the war.
According to weltkriegsopfer.de, his unit was 9. Staffel, III. Gruppe, Jagdgeschwader 27. At the time of Boden's death III./JG27 was at Turbiya in Egypt.
The wording on the cross is:
Ltn.
Werner Boden
Flugzeugführer
in einem
Jagdgeschw.
*21.4.1921
gefallen am
25.X.1942
The prop blade comes from a Messerschmitt Bf 109 (likely the F-4 variant):
Leutnant
Werner Boden
* 21.4.21
+ 25.10.42
gefallen für
Großdeutschland [can't quite read this, but it's probably what it says!]
Adrian