hobo element questions

[Byron Williams]

We have recently discovered a hobo element insertion associated with a 
mutant discovered in a P-element mutagenesis screen.  This element has 
inserted into an intron of the gene.  The element appears to be a 
truncated derivative of hobo, being only 1.6 kb, and may correspond to 
the Th1 or Th2 forms of the element.

My questions are: has anyone found a similar circumstance occuring 
with mutants occurring in their P-element screen?  Is there any way to 
check to see if the hobo element is causing the mutation (such as 
excision of the element upon exposure to hobo transposase)? 

Thank you,

Byron Williams