Other mistake: When O'Neill first goes to visit Teal'c in his cell the symbol of Apophis on Teal'c's head is upside down.
Continuity mistake: When the Bug Bomb is crawling out of Thodin's nose, it's design and body shape is noticeably different than when seen in closes ups later while on electrical components searching for a signal, especially the head. Also going by scaling of the floor when Stanley swats it to the ground as well as when it's visible flying around Stanley's head, the size of it is bigger after it leaves Thodin's nose and would not have fit. (00:32:20 - 00:35:10)