Cockroach defensive odors

Matttoadman

Blatta
Do only the adults produce these odors? I noticed only my adult Eublaberus "pantanal" produced the smell and was curious if this the same for all?

 
In my experience, only the adults produce the odor. I never noticed it while my Eublaberus ivory were still nymphs, yet as soon as they reached adulthood the odor is apparent every time they are disturbed.

same goes for all my Blaberus species.

 
Cool. My pantanal seldom produce the odor. I practically have to squeeze one to get it to smell. Which is a plus lol. 

 
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