Dimorphism of wings, wing‐folding and wing‐toiletry devices in the ladybird,Rhyzobius litura(F.) (Coleoptera: Coccinellidae), with a discussion of inter‐population variation in this and other wing‐dimorphic beetle species
作者:
P. M. HAMMOND,
期刊:
Biological Journal of the Linnean Society
(WILEY Available online 1985)
卷期:
Volume 24,
issue 1
页码: 15-33
ISSN:0024-4066
年代: 1985
DOI:10.1111/j.1095-8312.1985.tb00157.x
出版商: Blackwell Publishing Ltd
关键词: Coleoptera —;Coccinellidae —;Rhyzobius litura—;polymorphism —;wing‐folding —;geographical variation
数据来源: WILEY
摘要:
Dimorphism of tergal wing‐folding spicule patches and wing‐toiletry fringes accompanies wing dimorphism in the ladybird,Rhyzobius litura.Such dimorphism of ‘ancillary’ structures is of rare occurrence in the Coleoptera; other instances are discussed. Data are presented concerning the incidence of long and short winged individuals ofR. liturain samples from six populations in southern England. Factors likely to influence the relative proportions of the morphs in small populations, and in samples of different kinds, are discussed. Evidence that inter‐population variation in the incidence of macropterous individuals has a ‘geographical’ component inR. liturais
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