Editing Weevil (section)

== Sexual dimorphism ==
''[[Rhopalapion longirostre]]'' exhibits an extreme case of [[sexual dimorphism]]. The female [[rostrum (anatomy)|rostrum]] is twice as long and its surface is smoother than in the male. The female bores egg channels into the buds of ''[[Alcea rosea]]''. Thus, the dimorphism is not attributed to sexual selection. It is a response to ecological demands of egg deposition.<ref>{{cite journal |author=G. Wilhelm|year=2011 |title=Sexual dimorphism in head structures of the weevil ''Rhopalapion longirostre'': a response to ecological demands of egg deposition |journal=[[Biological Journal of the Linnean Society]] |volume=104 |pages=642–660 |doi=10.1111/j.1095-8312.2011.01751.x|display-authors=etal|doi-access=free }}</ref>

Another example of extreme dimorphism in weevils is that of the [[New Zealand giraffe weevil]]. Males measure up to {{convert|90|mm|in|abbr=on}} and females {{convert|50|mm|in|abbr=on}}, although there is an extreme range of body sizes in both sexes.