Okay, so it looks like I can't simply add more photos by replying to my original post, so I'll try adding a link to flickr and y'all should be able to see the photos there.
Thanks for your help,
Andrew

Here is a link that might be useful: Photos of insect damage

If your not seeing the pest feeding during the day then I would suggest going out this evening with a flashlight and jar and you might just find your pest. Please post and let us know/see what you find :)

Reminds me of earwig damage....

Vera

Earwig damage and slug damage can look very similiar....except for those tell-tale slime trails! I think that Vera might have hit the nail on the head. But follow her advice and check out your plants after dark. Look under the leaves, too.

Absolutely looks like earwig damage.. they can tear up and skeletonize leaves and sometimes flowers too. Did a job on some of my beans as well as the Hollyhock leaves and centers of daisies etc.. Go outside at night and look at the plants and flowers in your garden with a flashlight. It can be a startling experience!

I've had plenty a leaf look like swiss cheese, but I was even more devestated when they started eating my Datura flowers from the base up last year! ARGHHHHHHHHHH. Last week I had to change the string in my weed eater (a week after using last) and guess what fell out when I took the cap off? Out fell a whole lotta earwig nymphs and I was doing the mexican hat dance on their poor little heads LOL!
Here are those damaged flowers before opening:

Vera

why thank you, vera, for that traumatizing experience. :)

*shivers* and i don't get icked out easily. have you seen the ones about to lose their old skin for the new? they are white. blah!

Yup, it's earwigs. I was dubious because I hadn't noticed any, but I went out last night and found the plants covered. So I did a quick GW search, and subsequently put out some beer traps. But I think they needed to be closer to ground-level at the top; I was disappointed with how few I found drowned this AM. But I'll re-work them and see what happens tonight.

Thanks for the help!
Andrew

Andrew, beer works better for slugs. Use a combination of soya sauce and cooking oil instead.

Here is a link that might be useful: Fighting Earwigs

"Use a combination of soya sauce and cooking oil.."

And how long do you stir-fry them? ;>)

I use insecticidal soap in a 2-gallon sprayer. This is the worst year I've had for them, but the soap spray seems to be getting the upper hand. I don my full-body mosquito attire, grab my flashlight, and attack. I've also set some old boards in the pathways near their favorite plants. A quick flip during the day, and I can spray hundreds of them, along with a few slugs, and a few thousand sow bugs.

Last night was the second battle in this war, and thanks to Janet's link I made far more progress than the night before.
1) The dish soap/water combo in a spray bottle is great. Many of the buggers die within a couple minutes. I wonder if the soapy film protects the plants for the rest of the night? Maybe I'll get up really early and check sometime...
2) Janet was also right that soy & oil works far better than beer (yippee for me! The negro modelo stays inside tonight). I put out four little dishes, two with soy & corn oil and two with beer. The beer traps only had one earwig; the others had 40 or so.

Eww, Donn! The images that conjures up are hard on the stomach! I just dump them down the toilet.

Acowells, the soap spray is a contact poison, so I'm afraid anything left on the leaves is not going to kill them.

JUST in case you all missed this from an earlier post, here's Donn in his full-body mosquito garb. ;-)

Here is a link that might be useful: {{gwi:1164305}}

Semper Paratus!