Morphometric Traits of Adults of the Oriental Chinch Bug, Cavelerius saccharivorus OKAJIMA (Heteroptera : Lygaeidae), in Relation to Its Wing Polymorphism
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概要
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Morphometric traits of adults of the oriental chinch bug, Cavelerius saccharivorus, in relation to its wing polymorphism were investigated in newly emerged adults collected from a high density population of the 1st generation in a ratooned sugar cane field. The frequency distribution of relative wing length (RWL) of adults showed a bimodality with brachypterous and macropterous forms, although it was not completely discrete because both forms showed considerable variation in this trait. Genetic differences in density responses among individuals within a population was considered to be primarily responsible for such a large variation of relative wing length. Complete macropters (RWL≧5.0) were on average larger in body length and had much more developed mesothorax than brachypters. However, incomplete macropters (RWL=4.5) were smaller in body length than brachypters with RWL of 4.0 and had a mesothorax which was intermediate between brachypters and complete macropters. Despite their intermediate morphological traits, they were regarded as macropters from behavioural, physiological, and genetical evidence.
- 日本応用動物昆虫学会の論文
- 1989-02-25
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関連論文
- Morphometric Characters of Overwintering Adults of the Bombay Locust, Patanga succincta (L.)(Orthoptera : Cyrtacanthacridinae) in Outbreak Areas of Okinawa
- Wing Form Determination and Sensitivity of Stages to Environmental Factors in the Oriental Chinch Bug, Cavelerius saccharivorus OKAJIMA (Heteroptera : Lygaeidae)
- Morphometric Traits of Adults of the Oriental Chinch Bug, Cavelerius saccharivorus OKAJIMA (Heteroptera : Lygaeidae), in Relation to Its Wing Polymorphism