Eh, just give them the same NA and Dex as the warriors. It's easier and "more identical."
Anything else on these if we remove the ? on the CR?
Isopterite workers are the caste responsible for construction and maintenance the isopterite hive. They fight only as the last line of defense in the direst of situations for the hive.
How's that?
There's mention of there being a lot of specialized subcastes - farmers, nurses, et cetera. Let me think about it.
Isopterite workers are the caste responsible for construction and maintenance of the isopterite hive. While physically identical, most individuals have specialized skills for farming, nursing, etc. They fight only as the last line of defense in the direst of situations for the hive.
How's that?
Also, we don't have a feat listed! How about we change the skills up a bit to include some Craft or Profession skills and use an appropriate skill-boosting feat?