Thanks guys..
kit, this one was a recent purchase.. But flowered in the lowlands.. I know a few guys in Singapore who grow and flower bellatulum successfully. Just grow like niveum or concolor, but it is very sensitive to rots, so keep sheltered from rain...
marvin, the bottom petal is actually shaped like a slipper or pouch to catch insects. Unlike nepenthes, the caught insects do not die but are released after they pollinate the flower.