Respiratory organs of Tracheata.
D000818:Animals; D001516:Bees / Q000033:anatomy & histology; D001517:Coleoptera / Q000033:anatomy & histology; D006110:Grasshoppers / Q000033:anatomy & histology; D007313:Insecta / Q000033:anatomy & histology*; D012137:Respiratory System / Q000166:cytology*; D013045:Species Specificity