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About stanislas

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    Belgium (Europe)
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    Observing living creatures, artificial intelligence and neural networks, electronics, reading, working in my garden, photography.

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  1. One of my Polyphaga obscura roaches was still active this morning, so I took the opportunity to make a photograph. A few seconds later she disappeared again (probably for days or longer). And as a bonus, she has an ootheca hanging at her abdomen (so finally babies, albeit somewhere in the not so near future)!
  2. I'm trying to contact Kyle to see if he is able to provide Arenivaga species and have then send to Europe. Or perhaps other sources? Or find someone willing to send ootheca to Europe?
  3. It arrived! Thanks a lot. Very interesting! I've send you a reply and I will send you articles/article titles later today or tomorrow.
  4. I would love to read that paper about Heterogamia syriaca (stijn ad applesnail dot net). I also wonder how these roaches acquire water from their environment. In a Chinese article, it's mentioned that Polyphaga obscura can survive in soil with little water for months. And in an article about soil roaches (need to look it up) that live in the Saudi desert also indicated that there are more cockroach species that might have an advanced mechanism to retrieve water from their environment. I'll look those papers up... I wouldn't be surprised of several species have a vapor condensing capacity. Once my Polyphaga saussurei ootheca have hatched, I can send you nymphs. The same for Eupolyphaga sinensis. Let me know if you have interest. I definitely would like to share an order with you!
  5. I don't think it matters much for roaches. I use fish food flakes as they eat it relatively fast so no leftovers remain. This to avoid getting a mite explosion. I don't feed cereals and oats due to the tendency to attract mites. Dried oaks leaves and partly rotten oaks leaves (sterilized) are available to the roaches all the time. Every weeks some carrots or apple pieces. That's all I feed them. And as Betta132 mentioned: the amount of filler is important. I carefully look at fish foods and compare them to see which contain most proteins. There is a big difference between brands. I assume it's the same for dog and cat food.
  6. Interesting approach. Although I think the nymphs will prefer to burrow in substrate such way that their body is in contact with the material. So no hiding in empty spaces, no matter how small. But then again, I don't know for sure. It would be a good thing to try this! Let us know if it works! If so, using red light and a camera could enable to watch the nymphs 24/7 Material? Perhaps hardwood is a good option. Or cork bark? Clay ass well if you have the equipment to bake it the proper way. I would not use resins mixed with materials, unless you are absolute sure that there aren't trialing chemicals in the construction.
  7. The adults are definitely active during the day, while the nymphs are active at night. At least that's what I observe in my population. If I compare the activity in the enclosure when only nymphs are present vs a mixed population with adults I see this pattern (with logged motion detection):
  8. Interesting link. It's about the same price/square inch for the cheapest 0.2" hole mesh as I pay for stainless steel frying pan splatter guards. As often, knowing the right term helps a lot! So stainless Steel Wire CLOTH it is where I have to google for... Thanks!
  9. I use stainless steel frying pan splatter guards as screens. These have a very fine mesh and are relatively cheap. See here as well:
  10. Same here... The Archimandrita roaches do eat small bits of the cork, but it will take mine a decade at this rate to eat the whole piece completely.
  11. I have my Archimandrita tesselata roaches on cork bark since 2014 with no ill effect.
  12. Hazel sticks are certainly ok. I suppose the mangrove wood and fingerwood are those decorative hardwood root systems. If so, they should be fine as well, as these are very hard and I don't think many roaches can shew on them. In any case, I have a large piece of such mangrove wood in my Archimandrita tesselata enclosure. It's rather smooth and the roaches have a hard tine climbing it. I prefer cork barks pieces for the roach bins.
  13. I put it all in a glass bowl with a lid. Make sure it's a bit moist and then I put it in the microwave for about 8 minutes. That goes fast and works very well. It only makes the house smell a bit... forest like. My archimandrita's devour those oak leaves...
  14. This is actually a very interesting topic. The new leg parts actually develop within the remaining stump and after molting they fold out. There is an excellent article about this (Development and integrality of the regeneration leg in Eupolyphaga sinensis):
  15. Beautiful! Thanks for sharing! A male? So another one for the fighting pit?