Jump to content

Perplexing molting question


Recommended Posts

I witnessed a medium-large dubia nymph molt from start to finish. When it first emerged it was swollen and the body length was very long (it looked like an adult female size). I checked on it hours later, it was now flat, and the body length had shrunk to half its length it wasnt as long anymore. I was fooled it had molted to an adult, but it looks like it might be a sub-adult nymph now.

I think I know why the bloating, that was air to expand and split the old skin, right? But why at first was the body long, and over an hour shrunk to at least half it's "emerging" length? Was that basically how long it will be after it eats and grows more before it sheds next?

I think its temporarily longer because how else would a hardened exoskeleton grow with the nymph, the body is now "pre stretched" all it has to do is be filled and expanded by food now. Like a balloon, it starts off small, but when you add air (in this case food for the roach) it magically becomes much larger and stretches without breaking.

Sorry if this sounds confusing its hard to explain.

Link to comment
Share on other sites

  • 3 weeks later...

When they molt they swallow a lot of air, which results in the elongated abdomen and helps them break out of the exuvia. Afterward they release the extra air and the intersegmental membranes relax back to the normal state.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...