Journal of Sericultural and Entomological Science (한국잠사곤충학회지)
- Volume 20 Issue 2
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- Pages.10-14
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- 1978
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- 2234-8174(pISSN)
Studies on the External Structure of the Cuticle of Silkworm pupa (Bombyx mori L.)
가잠용외피의 외부구조에 관한 조사연구
Abstract
There are relatively many reports have been issued on he active movement of cuticle of larva. which tend to protect their body, however, only a few reports have been disclosed on the cuticle of pupal body except the small portion of rectangle which shown tortoise-shell shape. In this connection, many portion of the external structure of pupal cuticle has been studied and the following. results were found: 1) No. spot of rectangle which is sculptured in the surface of cuticle that born by branching. out of the development of cell in imaginal bud of antenna and head were found. However, in the compound eye of net shaped sculpture was found in the (equation omitted) shaped parts which holding. the diameter of about 8u and the surrounding area has the small bump and the one is dark brown coloured comparing with shape. 2) The sculpture shape of thorax is a little different than in the head. However, (equation omitted) portion is varies from the segment to segment. In general, it is not very clear than the compound eye in the head, the dark brown bump shape is slowly fade a from the prothorax, mesothorax to metathorax. 3) The surface of intersegment membrane is colourless or slightly yellow, and the entire surface has stripped marking with thine lines. 4) In the abdominal segment, there are many and small sculptures in net shape around the (equation omitted) shape portions. 5) The size of sculpture in (equation omitted) portion of abdomen is smaller than one in thorax, and in the same segment, the dorsal is smaller than abdomen and the rear portion of the segment is larger than the front of segment. 6) After the 7th abdominal segment, no intersegmental membrane is found and the cuticle of the external structure is the same as external structure of the segment. 7) The seta is not found in head, compound eye, antenna and wing which portions were subdivided by development of imagined bud of the cell, no seta is found in cuticle of the segment in the general cell of the larva stage and also in the dorsal and intersegmental membrane.
몸을 보호하는 중요한 역할을 하는 외피에 관하여 활발한 운동을 할 수 있는 유충에 있어서는 비교적 많은 연구보고가 있지만 용체외피에 대해서는 그 표면이 장방형의 소구분에 의하여 구갑의 모양을 한다는 정도이므로 이를 더 소상히 조사하기 위하여 용외피의 각 부위에 따른 외부구조에 관한 조사에서 다음과 같은 결론을 얻었다. 1) 두부및 촉지등 성충재의 세포의 발달에 의한 새로이 분화한 부분에 있어서의 외피의 표면에 조각을 이룬 장방형의 소구분은 발견할 수 없지만 복근의 1 부분에 망상으로 조각된 부분을 볼 수 있다. 이 (equation omitted)형의 부분은 직경이 8
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