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This paper describes courtship of Drosophilaquadrilineata of the immigrans group and reports a species-specific element, abdomen bending, that has not been described in Drosophila. The male bends his abdomen right and left as a display to the female. During courtship the male circles around the female, bends his abdomen, and taps her. The male licks the female ovipositor repeatedly, often after the...
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