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Issue:ISSN 1000-7083
          CN 51-1193/Q
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Your Position :Home->Past Journals Catalog->1997 Vol.16 No.3

Scanning Electron Microscopic and Biological Observations of Hepialus gonggaensis Egg
Author of the article:CHEN Shi-jiang, ZENG Wei, HUANG Tian-fu
Author's Workplace:(Sichuan Institute of Chinese Traditional Materia Medica, Chongqing 630065)
Key Words:Hepialus gonggaensis; egg; scanning electron microscopy; biology; observations
Abstract:
The egg of Hepialus gonggaensis was oval in shape and the surface of chorion under scanning electron microscopy revealed a portion of micropyle which was on the egg crown forming into irregular pear-like pulvinus. The micropyle was in the medial hollow part at the top of pulvinus. The other portion of egg was covered densely by tiny granules.
During the last ten days of June to July every year, the eggs were laid dispersively near the host plants. Under 8-10 average temperature and 80%-90% relative humidity, the incubation period was about 50 days with an hatching rate over 75%. In egg stage, the ova always endangered by fungus and natural enemy parasitic wasp.
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