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Post by multicaudata on Jul 30, 2012 8:54:48 GMT -8
I have found that the most successful means of collecting Catocala species is to walk through groves of host trees, smacking the trunks with my net handle to flush adults off the trees. When they re-settle, I simply sneak up and net them.
But I'm wondering if this is not a sustainable method of collecting. I worry that the shock wave created by smacking a trunk might kill early stages. Is that possible?
Thanks
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Post by admin on Jul 30, 2012 9:09:25 GMT -8
That's interesting. Are you talking about night time or daytime?
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Post by multicaudata on Jul 30, 2012 12:34:40 GMT -8
Daytime. I walk through groves of host trees and bang the trunks with my net handle. The moths flush off and re-settle on other trees, often low down and easy to catch.
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evra
Full Member
Posts: 230
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Post by evra on Jul 30, 2012 12:36:23 GMT -8
That's a technique called "tapping" in Catocala circles. Sometimes it works really well. If it's hot enough out, you don't even have to touch the trees, they'll just take off when they feel the vibrations of your footsteps. You do it during the daytime Clark.
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Post by multicaudata on Jul 30, 2012 16:27:50 GMT -8
Evra:
Thanks for the info, but I still don't know whether or not the technique is damaging to the Catocalas' eggs, larvae, and pupae.
Yes, I have seen hot days when all I had to do was walk through the forest to flush them. Earlier this month I collected in a very productive hammock near Antioch, CA (in the California Delta), where almost every step flushed a Catocala off of a tree trunk!
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