1. depends how close they are to adult. if they all moult within the next few days (or at least the other half of a couple) then you MAY be able to see some action before you leave. around two weeks as adult can be enough time, though some people would reccommend waiting longer to be on the safe side. so you might be able to make it, but don't count on it.
2. depends how big the container is and how much food you offer/leave in with them. this is how i bred my p.paradoxa most recenly, though that was just one pair. i left them in the same container with some bluebottles, for about 2 or 3 day and nights. i never saw any action during the day but something deffinitely happened during the nights as now i have L3 first generation.
3. if they haven't mated by the time you get back on the 23rd (given enough food they probably will have), then you still have plenty of time to try to mate them, assuming you arent just left with two adult females. however even then, i would reccommend leaving them all together/in pairs, and leaving them to it, which is what will have been happening for the past few weeks anyway probably.
4. if there is not enough food or space, ANY mantis will eat another mantis. females eat alot before laying an ootheca, it would take ALOT of houseflies to fill up a gravid female, i wouldnt be surprised if you come back to find the males chomped. even if the males get to mate and not get eaten, the female will be ravenous after as she looks to bulk up to produce the ootheca, at which point any food is fair game really.
5+6. i have never counted with this species in the past, but the female i have now has been adult since march 20th and has laid 6 oothecae. however she does not look so hot anymore (after laying the 6th ootheca she has just slowed right down, is somewhat dopey now). i think she has another couple of months left in her, tops. my male died after just under two months as adult. this can vary greatly obviously on how much they eat and the temperature theyre kept at.
7. all of the oothecae my female has laid me have been on thinner twigs than thicker ones. twigs that are no more than about 1cm thick, usually a little less. i did notice when i had her in a container with mostly thicker branches she would get quite agitated and run around everywhere presumably trying to find a place to lay. when i moved her into another container containing lots of thinner branches she layed within 24 hours. i am not saying this is a rule or anything, just that i noticed my female seemed to prefer thinner branches. if in doubt, maybe offer a variety of thicknesses so you can see for yourseflf.
8. i moved mine as soon as i saw them (or if she was still making it, waited a couple of hours after she was done). however i never moved the actual ootheca, i just snapped off the twig it was on and placed the twig in a seperate place. if you want to remove the actual ootheca from the twig it was laid on i would say wait at least a couple of days. there is really no rush though, unless you start feeding her lots and leave it in for a week for example, then you run the risk of her laying her next one directly/partially on top of the old one (i've seen it happen more than once, i wonder why they do this?)
9. i dont think you do really. well maybe when you see a pair mating, then you know she is ready
however i did notice my female calling for a few days before being mated. i guess that is also a sign, though don't look out for it as some people say they have never seen it, so i wouldn't completely bank on it.
10. like question one, depends who you ask. mine mated when the female was around 6 weeks as adult i think, the male was one week. she was so old because the male had taken ages to moult to adult, as opposed to me deliberately waiting that long. i think the earliest is one week male, two weeks female, but i think alot of people would reccommend waiting longer, at least on the females side.
hope that helps a bit, bear in mind pretty much none of what i wrote is a rule or for deffinite, just stuff i noticed when breeding mine recently, mixed with stuff i have read about other peoples experiences with them. incidentaly, you probably could have found answers to all these questions by searching the forum. anyway, just off the top of my head i remember there being some thoughts here:
http://mantidforum.net/forums/index.php?sh...=10725&st=0
also, have a look at my blog entry for this species, you may also find it useful. though i guess it is mainly dates and not so much info, but hey. it is here:
http://mantidforum.net/forums/index.php?au...mp;showentry=46
i hope other people can add to this as it is always better to get different experiences and opinions.