MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
Nun moth. Coloured scanning electron micrograph (SEM) of the head of a Nun moth, Lymantria monacha (also known as Black Arches). The antennae (right) are bipectinate (each segment bearing two pairs of branchlets) and these are much better developed in the male than in the female. The antennae bear the organs of smell; males have to detect sexual attractant molecules to find a mate whereas females only require smell to detect food plants. The large compound eyes (coloured pink here) provide a rough image of the moth's surroundings and allow the discrimination of different colours. L. monacha lives in both broad-leaved and coniferous woods. Magnification: x7 at 6x7cm size.
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