USS Savannah CL-42 https://www.history.navy.mil/research/histories/ship-histories/danfs/s/savannah-iv.html
https://commons.wikimedia.org/wiki/File:Guns_and_shell_casings_on_board_USS_Brooklyn_(CL-40)_during_Sicily_invasion,_July_1943.jpg
The air battle for Sicily has parallels with the Battle of Britain. The air battle had to be won before the invasion could to take place. As with the Luftwaffe in the battle of Britain the allies may have over estimated the effectiveness of air attacks on airfields. Many of the aircraft destroyed on the ground may have been un-servicable aircraft left as decoys or hanger queens canibalised for spare parts. The issue was not the loss of aircraft, but pilots. I can recommend Steinhoff's "Straits of Messina." He writes like on of the few but thsi was a losing battle. His account is of the draining losses intercepting bomber formations and outnumbered by the escorts.
This was a microism of the Luftwaffe as a whole. At this time they could barely afford the losses that were occurring on the East and Channel fronts. It didn't have much to spare for the Med., even to protect Old Musso.