RE: Bonar Lake?
fished near Chapleau once at Shenango Lake. The bugs were definitely there! BTW Shenango Lake is a dry hole and the camp there is worse! Lots of good water around there though, just a bad outfitter on that particular lake putting too many on it for too long.
Good luck! Most every Ontario fishing trip I've made (and I go every year) has been a great time! I'll be on Mistinikon Lake near Matachewan in mid June.... cant wait!!!!