There is a neat little trick to tying floss bodied buzzers; takes some practice but its quick and fun way to tie. You need two bobbins (one with floss and another with rather thick black thread, such as UNI 6/0).
Attach the floss in the middle of future thorax area and use it to attach the black thread. Still tying with your floss wind the body to hook bend, leave the black thread hanging and wind the floss back to thorax; whip finish. The whip finish will be bulky, but its actually a good thing - buzzers are
supposed to have a pronounced thorax. Then use the black thread as ribbing over the abdomen and use it to form a neat thorax. Whip finish at the head and lacquer over.
This is what I had in mind; the fish like it
Cheers!
J.