The Canadian Entomologist (1997) 129, 61-69

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C.K. Starr, D.D. Wilson, R.F. Severson and S.J. Kays (1997)
Sexual dimorphism in the sweet potato weevil, Cylas formicarius (F.) (Coleoptera: Brentidae)
The Canadian Entomologist 129 (1), 61-69
Abstract: Cylas formicarius (F.) shows a strong overall sexual monomorophism, with external differences noted in only three organs: (a) relative size of the hind wings; (b) form of the antennal club and numbers of its different types of sensillum; and (c) size of the compound eyes and their individual facets. We relate these to known or predicted behavioural differences. Eye dimorphism is used to test a theoretical rule on the relationship between differences in overall eye size and in the size of individual ommatidia. Some sexually monomorphic features are briefly discussed, including two types of putatively sensory hairs not found on the antennae.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website


Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cylas formicarius Sweet potato (Ipomoea batatas)
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