ecdysial glands

(redirected from thoracic glands)

ec·dys·i·al glands

insect structures that originate from the ectoderm of the ventrocaudal part of the head and serve as a source of ecdysone.
References in periodicals archive ?
We found a pair of thoracic glands followed by three pairs of abdominal glands (cranial, caudal and inguinal) (Figure 1).