In .com, dpb wrote:

EDIT for space

I recall that too, now that reminded..I don't know where they found
the bee that had learned names for colors and could either write them
down for us or tell us, but...

I was thinking the question had more to do w/ the nuisance moths and
that sort of thing than 'skeeters which aren't that light-attracted
anyway, from what I've read. They're mostly scent-/temperature-driven
iiuc.

My ploy is to keep a couple of the UV bug-zappers running 24/7, one
fairly close to the front porch to draw as much away as possible.
These make a very noticeable reduction in the nuisance bugs but aren't
particularly helpful for mosquitos, either. I spray the barns/lots
regularly for flies anyway, so when have load of malathion ready, will
do the grass in the yard then if they're being a problem. That pretty
much knocks 'em down for quite a while. For the entrance light we
have a 2nd-story-mounted flood so it's far enough away that what it
attracts isn't a direct nuisance and that provides enough light to
find one's way from the garage to the door and so rarely try to use
the direct porch light at the front door during warm weather.

Don't know if any of those ideas/remedies are of any use or not, but
consider the cost...

There was one spring/early-summer when I deployed a homebrew bugzapper
where I tried a few various lights and found what worked best to draw bugs
into the zapper, and *later that summer* the consequences!

I found that a regular "blue" fluorescent worked better than any
blacklight. "Blue" also worked better than "cool white", "daylight", and
incandescent of 3 times the wattage of the fluorescent.
Fluorescents I also found to work better if fed smooth filtered DC
(in my experience so far required a combination resistor and inductor
ballast to both work in any stable way and to start easily) than with 60
Hz AC - apparently a significant percentage of bugs see them flickering
and/or changing color 120 times a second!

So, I run my homebrew bugzapper with a 20 watt "regular blue"
fluorescent running from steady DC through the early part of "bug season",
and it appears to me that I make my block run low on nighttime flying
insects in general, especially leafhoppers.

I think great!

So what happens in midsummer? The bat population that usually flies
over my block appears to find my block low on food, and apparently
retreats half a block or so southeastward towards an adjacent park.

My block's mosquito population, apparently in response to this, makes
that summer on the bad side as far as mosquitoes are concerned. Keep in
mind that mosquitoes are not as light-attracted as a lot of other
night-flying insects are!

- Don Klipstein )