I was enjoying a delicious meal at Cafe Luna, which is open to the air on two sides, when my eye chanced upon this gangly green lizard perched in some nearby bamboo. They don't actually suck blood, so don't you fret; the name comes from the bright red heads of adult males in the breeding season.

Thanks to Frank Bambang Yuwono for helping me identify this lizard. Check out his Herpetology of Indonesia web site.