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Post by luehdorfia on Oct 28, 2016 18:17:47 GMT
I have never collected with UV lights, but for a university project I bought some powerful UV LEDs that are used for curing UV glue. They have a wavelength of 390nm, 20 watt, are so powerful that you can only look at them with protective glasses.
But they don't produce any heat. Has anyone ever used something like that? I just tried it in our garden but end of October seems to be too late in England.
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ciervo
Aurelian
Posts: 161
Country: Australia
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Post by ciervo on Oct 29, 2016 4:06:47 GMT
I have never collected with UV lights, but for a university project I bought some powerful UV LEDs that are used for curing UV glue. They have a wavelength of 390nm, 20 watt, are so powerful that you can only look at them with protective glasses. But they don't produce any heat. Has anyone ever used something like that? I just tried it in our garden but end of October seems to be too late in England. Im not exactly sure, but my uv collecting globes are 300w and get VERY HOT so perhaps your light is not powerful enough. Best way to know fo sure will be to try them. |
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Post by Adam Cotton on Oct 29, 2016 8:27:09 GMT
Heat is mainly the result of infra red light, rather than UV at the other end of the spectrum. The amount of heat is a product of the type of light bulb and bears no correlation with the attractiveness to moths.
I agree that the only way to know whether the UV LED lights do attract moths well is to try them. Do let us know here what happens.
Adam.
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Post by africaone on Oct 29, 2016 8:56:33 GMT
I have never collected with UV lights, but for a university project I bought some powerful UV LEDs that are used for curing UV glue. They have a wavelength of 390nm, 20 watt, are so powerful that you can only look at them with protective glasses. But they don't produce any heat. Has anyone ever used something like that? I just tried it in our garden but end of October seems to be too late in England. Im not exactly sure, but my uv collecting globes are 300w and get VERY HOT so perhaps your light is not powerful enough. Best way to know fo sure will be to try them. are they LED ?
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Post by luehdorfia on Oct 29, 2016 10:09:13 GMT
africaone yes it is LED and LED lights are normally stronger than standard lights even if they have a much less watt. I was just wondering since my light has so many safety precautions. Do normal UV trapping lights also come with these precautions? That you cannot directly look into the light? I tried it last night but there were was nothing flying, probably have to wait until spring and try again.
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Post by africaone on Oct 29, 2016 10:20:07 GMT
may be we need the help of a specialist in light. I think that led have a unique length of wave and discharge bulb have a large Spectrum.
Does all insect respond to the same length of wave (in this case, to discover this will allow to build an universel lamp, or do they respond to different ones and then need garge Spectrum to be efficient ?
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Post by jshuey on Oct 29, 2016 13:18:50 GMT
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Post by Adam Cotton on Oct 29, 2016 17:20:01 GMT
I saw something before that stated that Noctuidae and Geometridae are attracted to different wavelengths, so africaone's comment that broad spectrum UV will attract more is probably correct.
Adam.
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Post by nomad on Nov 2, 2016 21:13:33 GMT
Still Moths on the wing here but fewer in the UK as the November frosts move in. The South Coast last month was good for rare migrants. When I used a MV trap with UV light from my house it came with a transformer. I hope your neighbours do not mind bright lights.  |
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Post by vabrou on Feb 19, 2018 15:54:07 GMT
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ciervo
Aurelian
Posts: 161
Country: Australia
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Post by ciervo on Feb 20, 2018 4:46:29 GMT
This is absolutely amazing. What dedication and drive. Can we see some of the specimens collected? Are captures recorded? |
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Post by vabrou on Feb 20, 2018 14:32:27 GMT
ciervo Yes I have been documenting the results of my research, e.g. discovering far more than 1000 new species of insects here in my state of Louisiana alone. I have documented these matters in 387 entomological publications so far beginning in 1970 including many new species descriptions, etc.. Just go to my Facebook page created simply for the purpose of contacting entomologist and collectors of Eudocima throughout the vast areas and countries of the world. Here is a link to load near 1000 images illustrating hundreds of thousands of insects I capture daily here. I see you are in Australia. I recently described four new species of Eudocima moths, three of which are from the Australian region: E. martini Zilli and Brou sp. nov. 2017 Solomon Islands E. oliveri Zilli and Brou sp. nov. 2017 (Vanuatu) E. steppingstonia Brou, Klem, Zaspel and Zilli sp. nov. 2017 Marquesas Islands The fourth species was from Africa: Eudocima lequeuxi Brou & Zilli. Link: www.facebook.com/Eudocima/media_set?set=a.121723754613039.21082.100003262452539&type=3I get this species here: Lucanus elaphus Fabricius. Attachments:
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