Maarten.. Posted June 19, 2008 Share Posted June 19, 2008 Hi all, some pictures of my Therea petiveriana adults. I managed to take care of them since they were about 6 mm, so the next step is to breed them. I've read in the Allpet roaches book that the males and females can be sexed with the comparison of the antennae. I don't succeed in telling the two sexes apart. Can somebody judge by these photo's that I have two different sexes? I know it's not easy, but I've learned the hard way that they can be very fast and run up vertical plastic surfaces like hell, so first I take my chances this way. Enjoy the pics ... Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted June 19, 2008 Share Posted June 19, 2008 It's hard to see all the antennae at once but I just see males. Quote Link to comment Share on other sites More sharing options...
Matt K Posted June 19, 2008 Share Posted June 19, 2008 The photos need to be more brightly lit I think. I look at mine and can tell by the body shape. My vote is that out of the seven in the picture there are at least 5 males, one that may be either sex, and one that may be a female. But I cannot tell certainly without better lighting and/or spread out the roaches a bit. In my colony, the males are a tiny bit smaller next to a female, have more of that concave curve in the wing/elytra. The females are slightly bigger with more of a dome shape to the body / less wing curve. In the 5th photo down you can see something of what I mean by the one on the right being male and the one on the far left being a possible female. When I use terms like "slight", "less", or "tiny bit" I mean in very minimal terms. Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted June 20, 2008 Author Share Posted June 20, 2008 Thanks for the reactions! It's a coincidence, but I think just yesterday a female has molted to adulthood. In that case I have about 10 males and 1 female (poor girl). She was not yet fully hardened when I went asleep so no pictures yet, but I'll post them as asap. Quote Link to comment Share on other sites More sharing options...
PeriplanetaAmericana Posted June 20, 2008 Share Posted June 20, 2008 Hello! Great roaches Maarten..! How do you diffenrence sexes by antenae? I don´t know how do you do it. Best regards, Javier. Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted June 26, 2008 Author Share Posted June 26, 2008 I wanted to take a picture of the differences of males and females, but my girl had better things to do, so I didn't disturb them. (the one on top is the female) Of course, I'm 100% certain now that I have different sexes. Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted June 27, 2008 Author Share Posted June 27, 2008 All right, some pictures. Adult male Adult male Adult female. Notice the short antennae and the abdomen that is visible from beneath the wings. Adult female Together, the size difference is clearly noticeable. A nymph which has had a photoshop treatment A trio, the female is above in the photo. Quote Link to comment Share on other sites More sharing options...
PeriplanetaAmericana Posted June 27, 2008 Share Posted June 27, 2008 Great photos Maarten! Now, I know the differences between males and females, thanks! How many T. petiveriana do you have? Do you also keep T. sp "grandjeani"? Best regards, Javier. Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted July 2, 2008 Author Share Posted July 2, 2008 Great photos Maarten! Now, I know the differences between males and females, thanks! How many T. petiveriana do you have? Do you also keep T. sp "grandjeani"? Best regards, Javier. Right now, I have about 15 adults and some numphs. I bought 20 of them a couple of months ago. I don't keep the grandjeani-species. I'm starting to have an overcrowding problem. Quote Link to comment Share on other sites More sharing options...
PeriplanetaAmericana Posted July 2, 2008 Share Posted July 2, 2008 I'm starting to have an overcrowding problem. Hehehe, just like me . This weekend I´ll start building a cupboard for the roaches, I´ll post photos of it. Best regards, Javier. Quote Link to comment Share on other sites More sharing options...
palegothicangel Posted July 2, 2008 Share Posted July 2, 2008 they're lovely Quote Link to comment Share on other sites More sharing options...
Android raptor Posted July 4, 2008 Share Posted July 4, 2008 Awww, this species is adorable! I wish I had room to get a few... Quote Link to comment Share on other sites More sharing options...
Jess565 Posted September 4, 2008 Share Posted September 4, 2008 Your roaches are so beautiful I had to get some as soon as I saw your pics I now have seven nymphs and they are so cute! Im hoping to get more soon and get a gang going! Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted October 20, 2008 Author Share Posted October 20, 2008 I finall have some little ones. I do hope that more will come soon. Quote Link to comment Share on other sites More sharing options...
PeriplanetaAmericana Posted October 21, 2008 Share Posted October 21, 2008 Hello, That´s great Maarten! How did you keep the oothecae? Mines leave some of them and now I´m keeping the oothecae as adults. Am I doing it ok? Best regards, Javier Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted October 21, 2008 Author Share Posted October 21, 2008 Hello, That´s great Maarten! How did you keep the oothecae? Mines leave some of them and now I´m keeping the oothecae as adults. Am I doing it ok? Best regards, Javier I never do anything special with the oothecae so they are handled just like the adults. They are pretty tough, I just pour water in the substrate when conditions become too dry. I also don't mind temperatures too much, the water is room temperature, so pretty cold in comparison to the warm substrate they lay in, but that doesn't seem to be a problem. If you keep conditions hygienic things should work out fine. Quote Link to comment Share on other sites More sharing options...
PeriplanetaAmericana Posted October 22, 2008 Share Posted October 22, 2008 Thanks Maarten, How long did the oothecae to "have born"? Thanks! Best regards, Javier. Quote Link to comment Share on other sites More sharing options...
Maarten.. Posted October 23, 2008 Author Share Posted October 23, 2008 Thanks Maarten, How long did the oothecae to "have born"? Thanks! Best regards, Javier. Nearly 4 months at around 24°C. Quote Link to comment Share on other sites More sharing options...
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