Currently Amazon lists a Kindle edition of the PFG to Moths as being available for pre-order with release on April 17. I inquired with our editor about this, and there will be no Kindle/ebook edition released anytime soon. The field guide format is trickier and more involved to convert to ebook than a standard narrative/text, and the tools to do a good job of it are fairly new. The way the information is stored in the computers is apparently a little confusing and results in Amazon putting this sales link up (I gather this has been a problem for a while and the publisher has been looking at changing the computer system to try to address it).
There may well be an ebook version in the future, but it won’t be available on April 17. So if you’ve pre-ordered a copy, you’ll need to cancel and order the print copy instead. Sorry about that, everyone!