Troutnut Forum > Fly Hatch Talk > Callibaetis Spinner Habits
This topic is about the Mayfly Species Callibaetis ferrugineus
This is by far the most important Callibaetis species in American trout waters. It is known in angling books by its current species name and many old synonyms (Synonym: A former name of a taxon, usually a species. Entomologists frequently discover that two insects originally described as different species are one in the same, and they drop one of the names. The dropped name is said to be a synonym of the remaining name. These changes take a while to trickle into the common knowledge of anglers; for example, Baetis vagans is now a synonym of Baetis tricaudatus.), such as americanus, nigritus, and coloradensis. Read more...
The Discussion
| WildcatRob | September 8th, 2007, 8:34 pm | |
| Washington State Posts: 4 | With almost 40 years lake fishing experience in the Northwest (Washington) our callibaetis always seem to start hatching mid afternoon in the evening, mate overnight then the spinners start in the morning. The spinners draw the most intense "rise." I put rise in quotes because it is so delicate there it leaves almost no disturbance at all not even a sip. Any comments? Hopefully contradictions? Rob | |
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| Taxon | September 9th, 2007, 4:19 am | |
| Mercer Island, WA Posts: 485 | Rob- Generally, the more intense period of Callibaetis subimago emergence lasts for several hours, and takes place some time between mid-morning and mid-afternoon, whereupon both sexes retire to vegetation, awaiting a final molt, which occurs some hours later. Shortly thereafter, male imagoes form a mating swarm into which female imagoes venture to select a mate. The male imago expires shortly following mating. However, the female imago returns to the shelter of foliage, where it remains for ~5 days, allowing the ova to fully mature within the female imago, which behavior is unique to Callibaetis(and perhaps also Cloeon) among the mayflies. Following this period of dormancy, the female imago returns to the water and deposits her eggs, which hatch shortly following contact with the water, whereupon the female imago falls spent. This final act generally occurs near mid-morning, and constitutes the spinner fall to which you referred. The preceding is simply offered in the interest of sharing knowledge of the unique process female Callibaetis mayflies undergo following emergence, and is not intended to rebut any of your observations, the accuracy (of which) I have no reason to doubt. Louis- Please notice that I made absolutely no reference to the proper pronunciation of Callibaetis :) | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
| Shawnny3 | September 9th, 2007, 9:42 am | |
| Pleasant Gap, PA Posts: 541 | For your information, Roger, I believe the correct pronunciation is "Callibeeaeiaytis". Just to clarify things for those Latin neophytes out there. I should add, though, that there is still some debate in academic circles as to how to pronounce the letter 'c'. -Shawn | |
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| Taxon | September 9th, 2007, 12:14 pm | |
| Mercer Island, WA Posts: 485 | Interesting, Shawn. Is this the pronunciation for the version of Biological Latin practiced in English-speaking countries, or is it from some other version of Latin, perhaps the one believed to have been first widely spoken? | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
| Shawnny3 | September 9th, 2007, 8:04 pm | |
| Pleasant Gap, PA Posts: 541 | It is the correct Latin, Roger, that's all. Glad to help. -Shawn | |
| Jewelry-Quality Artistic Salmon Flies, by Shawn Davis www.davisflydesigns.com | ||
| Taxon | September 9th, 2007, 9:17 pm | |
| Mercer Island, WA Posts: 485 | Shawn- Perhaps you could break “Callibeeaeiaytis” into its phonetically-expressed syllables for me, an example of which I quote from Louis: You say caley-BEE-tis; I say caley-BAY-tis. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
| Shawnny3 | September 9th, 2007, 9:36 pm | |
| Pleasant Gap, PA Posts: 541 | Sure, Rog: "Caley-BEE-AE-I-AY-tis", with the emphasis on the middle four syllables. Remember, 'i' before 'ae' except (10 letters) after 'c', as in 'callibeeaeiaytis' - a pretty standard spelling rule, if my memory of third grade serves correctly. As I mentioned before, there is still some healthy discussion on the first part of the word, though. Most commonly, it is pronounced with a hard 'k', although there is of course the softer 's' pronunciation, and in certain parts of Spain there is also in common use a rather pompous sounding 'th'. I've even heard that some Arabs pronounce it with a gutteral 'kh', but that's likely just poor diction. Your professor, Shawn | |
| Jewelry-Quality Artistic Salmon Flies, by Shawn Davis www.davisflydesigns.com | ||
| Taxon | September 9th, 2007, 10:47 pm | |
| Mercer Island, WA Posts: 485 | Okay, Professor Shawn, now that we're really on a roll, how about the proper pronunciation for family name Baetidae? | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
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