High Frequency mics

["artsonics" artsonics]

hi again,
   A while back I posted a question wanting to know a good mic for
recording very high frequencies well above 20khz maybe to 100khz as i
would like to try capturing very faint insect sounds...any
sugestions.I have a feeling a mic for this sort of thing is not going
to be cheap. The only one I have seen is the Sennheiser MKH800 and
that only goes up to around the 50khz mark.

               thanks again clint