Oh, I forgot: female ADFs can´t vocalize and don´t attempt to amplex other frogs, so the behaviour differs as well.
Also, the bumps differ in size from male to male and depending on their hormone status:

Name:  P2260053.JPG
Views: 738
Size:  305.3 KBName:  P2260055.JPG
Views: 739
Size:  355.6 KB