Hi Rand,
As far as I know none has been found that does so yet.  But since all species 
save one in Heliamphora don't, and Darlingtonia doesn't either, that's not 
unheard of in CP.  I think a great case for B. reducta being carnivorous was 
made in Adrian Slack's book "Insect Eating Plants and How to Grow Them", for 
those who haven't read it I'll quote the book:
"B. reducta grows in the Guayana Highlands in South-east Venezuela and 
adjacent Guyana, where it favours sterile, highly acid, sandy soils in bogs 
and wet savannahs.  The narrow upright leaves are bright yellowish green, 
around 33 cm (13 inches) high.  They are held tightly together in a 
cylindrical rosette, the lower part of the cylinder forming the vase in which 
rainwater collects.  As in Sarracenia flava the bright coloration is likely to 
prove an advertisement to flying nectar-seekers, as is the strong scent of 
honey given off by a substance released into the water by glands in the leaf 
bases.  But this is a case of flagrant deception, for visitors entering the 
cylinder will find none.  The inner surface of the leaves on which they find 
themselves is covered with wax which breaks off easily, giving an unsound 
foothold.  A high proportion of such creatures are thus precipitated down into 
the water tank, where they drown.  As in Darlingtonia and Heliamphora there 
are no digestive glands, the soft parts of the bodies being broken down by 
bacteria.  The leaf bases are scattered with microscopic gland-like structures 
called trichomes, and these absorb the resulting nutrients into the plant's 
system."
Boy, would I love to have one of these plants!  I think it passes the 
carnivorous test.
Regards,
Demetrios