Most of the Staffel emblems of 1940 disappeared in 1941 or 1942, apart from 7./JG 2 and maybe 9./JG 2 only the Gruppen/Geschwader emblems remained. I've never seen the red triangle at all ... I guess it comes from a faulty interpretation of a b/w photo.
The emblem of III./JG 2 was used on the Bf 109 and Fw 190, but since the unit was in the west and never ventured to Russia it doesn't have a place at Stalingrad.
