Emiko gave me a Mexican Butterwort last year when the office had gnat or some kind of no-see-um type of bug driving us crazy. But I had it in the kitchen during one of the destruction/renovaation days and it got covered with gypsum dust and soon bit the dust. This new one is absolutely huge and beautiful. She said by growing in clear plastic she was having far better productivity and now has them coming out of her ears.
According to Wikipedia:
The butterworts are a group of carnivorous plants comprising the genus Pinguicula. Members of this genus use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutrition they obtain from the environments. Of the roughly 80 currently known species, 12 are native to Europe, 9 to North America, and some in northern Asia. The largest number of species is in South and Central America.