Well - it is well after 5pm here.
Couple of NZ patterns are as follows.
Backswimmer (Narrower body than the water boatman and carries it's air bubble under it's abdomen, the boatman holds his under his wing.)
Hook: #10-14
Body: Dubbed rabbit fur
Wing case: Black Pukeko plumage (or substitute), tied at the base, pulled over and secured as a beetle, trimmed leaving two barbs which are pulled back and secured in that position by winding on the thread to finish the head, then cementing.
A variation of this pattern uses flat silver tinsel which glints, suggesting the insect's air bubble. To accentuate this, some like to put a twist in the tinsel.
Weddell's Water Boatman
Hook #12-14
Body: Olive green synthetic dubbing or grey Ostrich herl
Legs: Biots of a Mallard primary
Back (wing case): Dark grey or brown primary feather, hen pheasant, goose, pale turkey etc.
Marsh's Water Boatman
Hook: #16
Body: Green yellow polywing mix
Wing case: Green Kea (*good luck finding that one!) or substitute
Legs: Pheasant tai fibres
* The Kea is a NZ native high country parrot which could be shot at will back into the 1960's and is now heavily protected.