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Everything posted by stanislas

  1. Today I saw a female Pseudoglomeris magnifica roach walking on the front glass. And upon close inspection I saw, much to my delight, three small nymphs clinging between their mother's legs. (picture is rather dull, due to the anti-reflection cross-polarization filters I had on my flash). I'm very happy with this!
  2. stanislas

    Dipteretrum hanstroemi pictures and video

    There is a roach with ooth in the video I posted above, around 1:00. They are not very tiny (compared to the adults that is).
  3. I finally took the time to photograph some of my Dipteretrum hanstroemi roaches. I had to take some precautions, because of their skittishness and good climbing capacity, but I managed! It's still not clear to me what 'pest' capabilities they posses. Do do not fare well at lower temperatures (< 20C / 68F), but can do quite well in dryer habitats. They can climb well, and have a high reproduction rate. So far I have managed to keep them contained to their enclosure... Video will follow soon!
  4. stanislas

    Ancaudellia hamifera

    Finally got these roaches as well. They are still quite small, so it will take time to see adults. @Manuel_P: Have your roaches reached adulthood? Babies already? The adults cut their own wings. Have you seen that in your's?
  5. stanislas

    Dipteretrum hanstroemi pictures and video

    They indeed prefer a dry and warm enclosure. I almost lost them when I kept them more moist. They do like carrots and fish food and an occasional misting. That combined with some heating seems to do the trick here. I keep their substrate bone dry.
  6. stanislas

    Pesticide removal

    I always peel fruits before I give them to the roaches... Or when possible use those from my own garden. @Xenoblatta: these roaches died after eating contaminated fruits?
  7. stanislas

    Pesticide removal

    Most likely it contains permethrin. That stuff is quite persistent. I would put it in a washing machine with sodium carbonate instead of detergent and wash it a high temperature. Perhaps that will do, as permethrin hydrolyses under alkaline conditions. Another option is the combination of water and light... but that might take time. Even then, I would be reluctant to use it. Considering the fact that permethrin treated clothing can outlast many washing cycles....
  8. stanislas

    Hyporhicnoda reflexa

    Hyporhicnoda reflexa (Venezuela) female (wingless) and male:
  9. After collecting cockroach activity in my collection for more than a year now, I decided to make some graphs. Each graph is made up of 505056 datapoints (measurement every 10 seconds for 2 months). X-axis: hour of the day Y-Axis: Activity level and light level in the enclosure. Among the most interesting ones are the Therea bernhardti graphs. There you can see how the nymphs are active during the night, in contrast to the day-active adults.
  10. stanislas

    Are these leaves safe?

    Look like a kind of holly. I know you can make tea from young leaves and the leaves are supposed to be non-toxic for humans... but how that will work out for roaches? I have no idea. I wouldn't try it unless someone here has positive experience with these, or if you are willing to subject you roaches to an experiment. In the latter case, keep us updated. And I would put by bet on 'they will be fine'.
  11. stanislas

    Pseudoglomeris (Corydidarum) magnifica

    I checked it, and I can only conclude that it's the natural color of the palps.
  12. I managed to make some photographs of my new roaches: Corydidarum magnifica. The nymphs are still quite small (8mm / 0.31inch) and I took the photographs through the glass of their tank, so the quality isn't optimal.
  13. stanislas

    Hyporhicnoda reflexa

    Male: Female:
  14. stanislas

    can you ID this Roach?

    You should ask Nicolas Rousseaux (http://www.roachforum.com/index.php?/profile/3063-nicolas-rousseaux/). I've seen them in his collection when I visited him (or at least something like that).
  15. stanislas

    Kyle getting back into business

    I just read on http://www.roachcrossing.com/major-life-updates-unanswered-e-mails-facebook-reboot-future/, that Kyle is getting things back in order. That's good news, especially for Kyle himself! I didn't know what had happened last year, but knowing know after reading his message, it has been quite a lot. Well, I wish Kyle all the best (and perhaps we should not swarm him with roach orders )! Kyle: if you happen to read this: Take you time, and I wish you all the best!
  16. I'm not aware of articles mentioning this, although I suppose I'm not the first to notice this. But none the less, it's a remarkable change in circadian rhythm. It also reflects the different survival strategy followed in nymphs (hide and not been seen) vs adults (look like a nasty Anthia sexguttata beetle).
  17. stanislas

    Pseudoglomeris (Corydidarum) magnifica

    I managed to make a video of one of the nymphs eating bee pollen:
  18. A few days ago two of my Schizopilia fissicollis nymphes died unexpectantly. One just sat on top of a leave, the other on top of a piece of wood. Not moving.... Which made me suspicious. I have their death on camera (time-lapse). They have been moving around in the hours prior to they demise. Eating, walking, and then slowed down, stopped walking and after a few hours stopped moving altogether. So that made me consider that the condition in their enclosure wasn't, lets say 'optimal' I assumed they preferred a hot, humid environment with a lot of bark, and a substrate with dried leaves. When I took out all roaches and did a thorough overhaul of the terrarium, there was a lot of fungi in the substrate and the wood tended to rot at the fringes... no good. The new setup consists of slightly moist coco peat and a lot of bark pieces on top. I provided better ventilation as well to reduce air stagnation. Basically I will try the classic 'moist corner' setup. Water is provided through fruit and agar blocks. In any case, the roaches are now much more active at night and walk over the whole area. They eat well (fruit and a leaves/grasshoppers/fish food paste smeared on bark). Keeping my fingers crossed! Do other people have similar experiences with keeping their roaches too humid and/or with too little ventilation? In particular with rainforest species? How did you solve it? Is moisture a real problem for roaches?
  19. stanislas

    Two Schizopilia fissicollis roaches died

    I replaced the substrate with pure coco coir. Since then, no mold had been present. The lid on the enclosure I replaces as well with one full of ventilation holes. Food is always on a dry place, high above the substrate and replaced every few day. I always make sure it stays dry (also to prevent mites). Moist food (citrus fruit, apple etc.). Is also place on a dry section, away from the dry food. Moisture is provided with keeping the substrate moist by wetting one corned when needed. Misting is provided every few day. Since these changes, the mold has gone away and the roaches seem to do fine. No losses since... So with hindsight I think stagnant air with mold present in the substrate did those two roaches in.
  20. stanislas

    Two Schizopilia fissicollis roaches died

    Could very well be the case. The enclosure wasn't ventilated well enough and there was certainly too much mold present. Now the ventilation is better and the temperature a bit lower, they seem to do much better.
  21. Since a few months I have a bin with wild caught Ectobius sylvestris roaches. I had a number of males (+-4) and a few females (+-6). When I caught them, they were still nymphs, but soon became adults. The males only lasted a few weeks as adult, while the females still do well. I'm not sure what that means. Do the males live shorter, yet still fertilize the females? I guess I'll find out. I still don't have the feeling that I master the keeping of these roaches well. I consider it a challenge... Suggestions and comments are very welcome! Below: female Ectobius sylvestris eating a bit of fish food flakes.
  22. stanislas

    Female Ectobius sylvestris

    Thanks! That explains a lot! The adults last year were indeed short lived. The nymphs I had, overwintered without growing much. I suspect these will soon become adults. Now the big question will be: Does Ectobius silvestris roaches have a one or a two year life cycle? Deducing from the google link/article compared to my observations, I guess it will be two years. As the nymphs did overwinter well here (I kept them cool during winter). This will imply that my nymphs will mature soon, live for about 5 months months and then my enclosure will be empty until (only ootheca) for a year I guess I need to catch a second generation in fall to have these roaches on display the whole year round. Adapting the figure from the article, it will give me this:
  23. stanislas

    Female Ectobius sylvestris

    It has been a bumpy road with these fellows. No ootheca last year (2017). Somehow I did not manage to find the right conditions and food. I believe I kept them too moist at first. I tried feeding powdered fish food, honey, fruits, vegetables, yeast, powdered oak leaves etc. But it hasn't been clear to me what they like to eat. And so the colony dwindled... With fall nearing I caught some more nymphs to supplement the lost roaches. After that I added more forest substrate and crushed leaves and kept the enclosure substantial dryer. As result no more losses. On the food front I decided to try something else: bee pollen. That stuff arrived today. I crushed the pollen pellets to powder and put that in the enclosure. Low and behold, they started eating the stuff. While it's still early on in this experiment, at least my hopes have raised that I might one day be able to get a thriving colony of this (local) species (keeping my fingers crossed)!
  24. stanislas

    Perisphaerinae Changes...

    Do you have access to full article?
  25. stanislas

    Pseudoglomeris (Corydidarum) magnifica

    Hopefully they do get a foothold into the US roach hobby. So far mine seem to grow fast. Which makes me happy.