User-agent: googlebot
Disallow:
Disallow: /images

User-agent: KIT-Fireball
Disallow:
Disallow: /images

User-agent: Lycos_Spider_(T-Rex)
Disallow:
Disallow: /images

User-agent: Scooter
Disallow:
Disallow: /images

User-agent: Gulliver
Disallow:
Disallow: /images

User-agent: FAST-WebCrawler
Disallow:
Disallow: /images

User-agent: Googlebot-Images
Disallow:
Disallow: /images

User-agent: AbachoBOT
Disallow:
Disallow: /images

User-agent: ah-ha.com crawler 
Disallow:
Disallow: /images

User-agent: Acoon Robot
Disallow:
Disallow: /images

User-agent: Crawler
Disallow:
Disallow: /images

User-agent: ZyBorg
Disallow:
Disallow: /images

User-agent: HenryTheMiragoRobot
Disallow:
Disallow: /images

User-agent: Arachnoidea
Disallow:
Disallow: /images