Last reply on Apr 8, 2013 by Willy
Based on reports from several sources and my own experiences, I'm beginning to think it is significantly more important than it has been credited for. The duns emerge by crawling out onto land, so they aren't important, but some of my most memorable fishing nights of 2005 were due to Baetisca
It is a tricky hatch to detect. I haven't seen more than a couple of their spinners in the air at a time, though some of my friends report spotting their swarms. Normally for me they just showed up on the water from unseen swarms upstream. They were mixed with spinners from Ephemerella invaria
and Maccaffertium vicarium
, among others, but the fish were relentlessly selective to the Baetisca laurentina
I wasted the better part of an hour flinging a sulphur imitation the first time I encountered a Baetisca
fall. Like Ephemerella
spinners, they can be hard to spot on the water, and they were much more sparse. I finally captured one, noticed the very different body profile, and since I didn't have anything remotely imitating it I continued to catch no fish. I returned the next night with an imitation with a robust, opaque body, and the fish went crazy for it.
I just finished reading through the account by Caucci and Nastasi in Hatches II about how the extremely important Ephemerella invaria
sulphur species went unnoticed for decades because it was confused with Ephemerella dorothea
. The maddening difficulty of some dorothea
hatches was partially explained away once people understood this difference.
less prominent than Ephemerella invaria
, I suspect it has similarly been confused with well-known sulphur species in the rare locations and occasions where it is important.