This male nymph is probably in its final instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.). The wing pads (
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.) are extremely black and the large turbinate (
The wing pads on this final instar Baetidae
mayfly nymph are extremely dark.
Turbinate: Shaped like a top or elevated on a stalk; usually refers to the eyes of some adult male Baetidae mayflies which are wider near the tip than at the base.) eyes are very apparent inside the nymph's head.
This male Baetidae
dun has slightly turbinate eyes.
This mayfly was collected from the Bois Brule River on June 9th, 2005 and added to Troutnut.com on May 26th, 2006.
Recent Discussions of this Nymph
Nymph Color Comment 8 Replies »
I see the grayish tint as more of a Salmon tint. I would tie up some variations and test them. I tie all my nymphs with a variegated coloration rather than a blend. This works on most flies and I try to match the tones to the segment(band)of the natural as you sugested. I have had much success with this approach. ReplyBaetid nymph color 1 Reply »
Last reply on Dec 26, 2006 by GONZO
OK, this olive nymph seems to have a good bit of grey in it. I know colors vary a lot among baetids, but I'm wondering about a good general color for shucks. And nymphs. Are most of them more olive than this? Or is it too hard to generalize? Also, I notice darker and lighter segments in the abdomen. I've noted this in subvaria's and try to get a lighter band just ahead of the darker tail segment in nymphs I tie for them. Perhaps this is a good idea with baetid nymphs as well. Reply
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