HAO Portal

"annulus" is tied to multiple concepts in the ontology, please choose one.

The sclerite that is ring-like and is not attached to muscles.
The sclerite that is usually ring-like and is connected distally to the gonostipes via conjunctivae and muscles; proximally to the abdominal sternum 9 via muscles and conjunctivae.
The carina that is transverse and extends across the lateral wall of the first valvula or the second valvula.
The area that is located posteriorly of the transverse carina of the petiole.

This HAO portal is a project of the Hymenoptera Anatomy Ontology in conjuction with Morphbank and the International Society of Hymenopterists and was initially funded in part by NSF grants BDI-0446224, EF-0337220, and DEB-0328922. Current funding is from DBI-0850223; ideas and opinions expressed here are those of the authors and not the NSF.