Thanks, and wouldn't mind C. clarithorax. Need more than 1 native species. You listed the time at around 730ish and have an iNaturalist.org siteing is it near that location that you recommend looking? (haven't read the post yet)
Yup, that is the exact spot. Look on the oak trees!
Generally, the night will need to be warm, at least 65 for them to be out. They flew 2 weeks ago, so not sure how many are still out.
Keep in mind the trail has A GATE THAT CLOSES AT 8PM. A cop usually drives into the parking lot to warn visitors before closing, but there have been times where they didn't. Last season, slept in my truck twice because was too busy collecting C. quercicola til 2am in the morning.
If you're not used to camping or being out in nature at night alone, yes - it will get creepy. Lots of spooky sounds like wind, branches cracking and falling, critters like birds and rodents moving about in the darkness, even water can sound creepy. Be aware of rattlers and mountain lions. Those are also nocturnal. And if you see a black unmarked windowless van that says "Solenopsis inside", stay away.
EDIT: Forgot to mention one more thing. If you don't find anything now, it's OK, don't stress it. I went a few weeks ago because it has been unusually warm this year and the trail is only 30 min away.
Have a hunch they will fly again as well as the larger Camponotus. Here is my log from last season. Everything there flew early March.:
Edited by nurbs, February 8 2018 - 10:47 PM.