Murphy's Krystal Emerger SBS
http://i1302.photobucket.com/albums/...psa70c2018.jpg
Original has grey ostrich herl thorax; left mine back in VA and the flyshops were closed, so I subbed a partridge aftershaft feather. Tied here as a baetis; swap components to suit your needs.
hook - Dai Riki 320 #18
thread - MFC 8/0 olive
shuck - Z-lon brown
abdomen - goose biot olive brown
wingcase/legs - Krystal Flash pearl
thorax - aftershaft feather
Part 1
Mash down barb, start thread, tie in shuck and wrap back to bend; trim (gap width)
[img]http://i1302.photobucket.com/albums/ag128/SBPatt/Tying/Tying001/IMG_2226_zpsb5ecb110.jpg[/img
http://i1302.photobucket.com/albums/...psf038a600.jpg
moisten biot and tie in (notch side up for smooth/segmented effect, down for raised rib; your choice); wrap forward, tie off and trim
http://i1302.photobucket.com/albums/...psf11bed42.jpg
http://i1302.photobucket.com/albums/...ps0d86eb22.jpg
tie in 4 KF strands
http://i1302.photobucket.com/albums/...pse4ac305a.jpg
insert aftershaft feather into clip (as is, the feather barbs are too long, so I'll only use part of one side)
http://i1302.photobucket.com/albums/...psc84e5154.jpg
http://i1302.photobucket.com/albums/...ps3b1267e1.jpg
split thread, insert clip; slowly remove, trapping feather
http://i1302.photobucket.com/albums/...ps7b920098.jpg
http://i1302.photobucket.com/albums/...ps768f2ea8.jpg
http://i1302.photobucket.com/albums/...psc5321941.jpg