- 著者
- AOKI Shigeyuki
- 出版者
- 日本昆虫学会
- 雑誌
- 昆蟲 (ISSN:09155805)
- 巻号頁・発行日
- vol.45, no.2, pp.276-282, 1977-06-25
- 被引用文献数
- 1
Colophina clematis is a woolly aphid with a peculiar kind of dimorphism in the 1st instar larval stage : "primary-type" larva and the unusually characterized "secondary-type" larva. Some hypotheses explaining the biological role of secondary-type 1st instar larva were proposed and tested, and the following one is accepted as the conclusion of this paper : Secondary-type 1st instar larvae attack intruders, thus they serve for defending their colony from some predators ; and they neither grow nor reproduce. Further problems are briefly pointed out.
- 著者
- Aoki Shigeyuki Kurosu Utako Buranapanichpan Sawai BANZIGER Hans FUKATSU Takema
- 出版者
- 日本昆虫学会
- 雑誌
- Entomological science (ISSN:13438786)
- 巻号頁・発行日
- vol.5, no.1, pp.55-61, 2002-03-25
- 被引用文献数
- 1
Multiple-cavity galls of a cerataphidine species were found on the evergreen Styrax benzoides in Chiang Mai, northern Thailand. Comparison of mitochondrial DNA sequences between aphids from the galls and aphids of Pseudoregma carolinensis from bamboo revealed that the gall-forming aphids are of P. carolinensis. The colony sizes of mature galls were comparatively small, up to approximately 1, 500 individuals. The galls contained many pseudoscorpion-like 2nd-instar soldiers, which attacked an experimentally introduced moth larva, and which were observed to push globules of honeydew out of the subgall. The life cycle (holocycle) is probably annual, with some aphids remaining on bamboo throughout the year. The gall and alate morph are described.