Acro Posted September 15, 2015 Share Posted September 15, 2015 Can someone post a photo (or a link) to a photo of an unhatched roach ooth, vs a hatched ooth? Points if it's a Domino roach ooth! Quote Link to comment Share on other sites More sharing options...
NRoach Posted September 30, 2015 Share Posted September 30, 2015 They practically look the same, except that sometimes in hatched ootheca, a brownish membrane that seperated the eggs is visible outside the opening. Also, if you gently squeeze the ootheca from its ends, a hatched ootheca will easily open. Squeezing very gently won't harm the developing eggs, but of course, be careful. With genera that lay larger ootheca( not Therea spp.), such as Blatta, Periplaneta, etc., the empty eggcase make a hollow sound when lightly tapped with a metal spoon or when being bumped on a hard surface. Once you know the sound, you can easily distinguish unhatched and hatched ootheca. Quote Link to comment Share on other sites More sharing options...
Ranitomeya Posted October 1, 2015 Share Posted October 1, 2015 Hatched oothecae or dried out and dead oothecae are lighter than unhatched oothecae. You can try dropping them in water for a float test. Quote Link to comment Share on other sites More sharing options...
TheDubiasDemiGod Posted October 1, 2015 Share Posted October 1, 2015 Interesting.... are ejected Oothecae automatically a loss for Dubias? I haven't been able to find a clear answer :l Quote Link to comment Share on other sites More sharing options...
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