Hello everybody,
At the moment i've got 10 pupae from G. Isaballae in my terrarium with a temperature from 25 degrees and humidity 50%.
But they won't hatch! Does somebody know what I have to do to let them hatch?
Every answer can help me! 
Best wishes,
Lewis Jansen
Hello Lewis !
I think, 25° is a little bit too warm, humidity might be o.k. I kept the mine last year at room temperature (21°), and rather whet, with the result that most of them got mouldy. Therefore, in the next breeding, I will try to keep them more dry, spray them only 1x a day.
Best wishes, Hans
Hey Lewis,
have the pupae been kept cold during winter time? Maybe outside, in a fridge or any other chill place?
Hello,
I spray them regulary and I will have to keep them with a temperature of 21 degrees! 
I haven't kept the pupae in a cold place, they also were my terrarium with a temperature of 16-19 degrees..
Is that alright? They still live, so that's not a problem 
Kind regards
Does somebody still know how to hatch them when I haven't kept them cold during winter time? :confused:
I don't know if it's better to put them in a fridge for some months or let them in my terrarium where the're now..
Hello Lewis !
I think they need cold temperature of abaout 2°. Put them in Your refridge for 2 months, and than try it again.
Best wishes, Hans
Oke thank you everyone!
I will put them in my fridge, it's 6 degrees or something...
If anyone got some tips, you can always tell me
Best wishes,
Lewis Jansen
I would advise to check often the humidity when using the fridge, it has a tendancy to dessicate.
I will check it regulary!
Thank you
Hi Lewis,
Just a few word about this specie because I'm affraid when I read replies below!!
At first G.Isabellae is a mountain butterfly then they didn't need to stay in your room or in your terrarium with a temperature from 25 degrees.
The best thing is to put them outdoor, humidity and temperature is sufficient and normally they should be hatch on May.
All the best
Lepido
Hello,
So I just have to put them outdoor in my shed or something?
Because there it is just the outside temperature, and at night, it's a little warmer that outside, like 3-4 degrees, and during the day, it's like 13-14 degrees now.
But when the sun is shining, it's already 17-18 degrees... However, it should be the best to put them in there, because the temperature there is the same as outside.
And in May, I can put them in my greenhouse
Best wishes,
Lewis Jansen
Hi Lewis.
Make it like in nature: there is no heater, no greenhouse and so on.
Don´t you think that will be the best?
Rudi
Hi Lewis,
I think your a bit late. They have a 'clock' inside, and after they have a period of cold, and if it is getting warmer in spring, they normally hatch in Mai. But if you put them now outside, it isn't winter anymore, so I think they won't get enough cold to feel the winter. Maybe your lucky and they will hatch, maybe they won't, and do next year (don't know if they can overwinter 2 times).
But spraying them would be very wrong, or keeping them humid. I kept mine last year 4 Month in a closed container in the refridgerator, no moisture added, and taken out in March/April. Then they emerged in Mai, beautifull species. But with extra moisture, you will kill them. It is NOT a tropical species
Hello Marc,
Yeah it's a bit late now..
But we can always try it The nights here are very cold, just 1-2 degrees, and in a few days, it even will be freezing at night here! So maybe in the next 3-4 weeks, they 'feel' it's winter.
Let's hope I will be the lucky guy. I also don't know if they can overwinter 2 times...
But in the refridgerator, the humidity is almost 10-0%! Can they have that low humidity?
Yesterday, I put the cover from my terrarium and some gauze on it, and now they have day temperature between 5-12 degrees, and night temperature between 0-4 degrees. So let's hope the clock inside the pupae points them it's winter 
Thanks Marc!
Best wishes,
Lewis Jansen
Lewis, storing your G. isabellae pupae in the fridge below 5 degrees for at least 2-3 months is the only
way you can let them hatch this year. Any other attempt won't work. My advice: study some literature
before you choose to purchase live material from a species, to avoid such stupid mistakes in the future.
Groeten, Klaas
To combine the last to posts, literature tells that for A. isabellae cocoons it can take two winters before they hatch. I can not refer to own experience but this phenomenon is known from many species.
So if you put them outside now, I guess they will most probably hatch next year.
Hello Klaas and Moe,
Thanks for your advice. Sorry I made a 'stupid mistake'. I have read things about this specie before, but I asked it on the forum to know something about experiences from other people with this specie.
Everybody has his own experience and you can learn from others and from mistake you make or what you've made in past.
Now I know what to do at this moment and in future and I thank everybody who gave me advice
Regards,
Lewis
But in the refridgerator, the humidity is almost 10-0%! Can they have that low humidity?
That's why you should use a closed container, so there can not be extrakted moisture : ) But some toiletpaper on the bottom, maybe put 1 drop water on it, and then again 2 papers toiletpaper, then cocoons, close, and into the refridge. Works perfect!
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