Hintze Christel
I. Zoologisches Institut der Universität Göttingen, Deutschland.
Wilhelm Roux Arch Entwickl Mech Org. 1968 Sep;160(3):313-343. doi: 10.1007/BF00586151.
The neurosecretory cells of the brain, the prothoracic gland, and the corpora allata ofCerura vinula L. undergo phases of secretory activity in every larval instar. In the last (fifth) instar, the activity of the corpora allata is only weak. The neurosecretory cells of the brain are active from the 3rd day of the fifth instar till after pupation. The activity of the prothoracic gland lasts from the 3rd day of the fifth instar to the beginning of the moulting process in the integument, about 6 days after spinning. It has a small maximum of activity about 1 day before the larva turns red and begins to spin its cocoon; and a second one after the red epidermal pigment has vanished, i.e. before pupal moult sets in. These morphological results are in accordance with the assumption that all of the processes involved in pupation are brought about by the prothoracic gland hormone ecdysone. Haemocytes have been found among the cells of the prothoracic gland during its period of activity. In the pupa and the adult moth the corpora allata undergo periods of secretory activity, the function of which is not yet clearly understood. The thorax of the larva contains an additional endocrine gland, extending through the dorsal fatbody, the function of which is still unknown.
天幕毛虫脑内的神经分泌细胞、前胸腺和咽侧体在每一幼虫龄期都经历分泌活动阶段。在最后（第五）龄期，咽侧体的活动较弱。脑内神经分泌细胞从第五龄期第3天直至化蛹后都处于活跃状态。前胸腺的活动从第五龄期第3天持续到表皮蜕皮过程开始，即吐丝后约6天。在幼虫变红并开始结茧前约1天其活动有一个小高峰；在红色表皮色素消失后，即蛹蜕皮开始前有第二个高峰。这些形态学结果符合这样的假设，即化蛹过程中涉及的所有过程都是由前胸腺激素蜕皮激素引起的。在前胸腺活动期间，在前胸腺细胞中发现了血细胞。在蛹和成虫蛾中，咽侧体经历分泌活动期，其功能尚不清楚。幼虫的胸部有一个额外的内分泌腺，穿过背部脂肪体，其功能仍然未知。
