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- W144225511 abstract "(2): 077–084; Stuttgart 2009-07. – – – [Article]To locate suitable host plants herbivorous insects integrate information from several sensory mo-dalities. In this process, the visual sense is generally regarded to provide less specifi c information than olfaction or gustation, partly because of the relatively poor acuity of insect eyes. To investigate whether visual acuity increases with eye and body size in herbivorous insects, morphological eye features were measured in winged females of 20 aphid species of varied body size. The measurements included vertical eye length, ommatidial diameter, interommatidial angle, and number of ommatidia. Thorax length was measured as an indicator of body size. The insects were collected from fi eld sites in Great Britain and Germany and from laboratory cultures. All measurements were done digitally on pictures produced by a camera connected to a stereo microscope and a Personal Computer. Eye length (median 157 µm) and ommatidial diameter (median 10.1 µm) scaled positively with total thorax length, but the interommatidial angle (median 7.9°) and the number of ommatidia (median 214) did not, suggesting that larger aphid species do not invest in improving their visual acuity. The study shows that aphids, with their relatively few ommatidia and large interommatidial angles, have a comparatively low spatial resolution." @default.
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- W144225511 date "2009-07-01" @default.
- W144225511 modified "2023-10-03" @default.
- W144225511 title "Messungen der Augengröße und Sehschärfe bei Blattläusen (Hemiptera: Aphididae)" @default.
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- W144225511 doi "https://doi.org/10.1127/entom.gen/32/2009/77" @default.
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