Abstract
THE major nitrogenous excretory product of adult insects is uric acid1. Small amounts of the enzymes adenase and guanase have been reported in Hydrophilus and Dytiscus 2 and in Prodenia and Tenebrio 3. Larvæ and pupæ of Antheraea pernyi Guér. (Lepidoptera) contain adenine, hypoxanthine and xanthine4. At Lethbridge, female sheep keds have been found to excrete xanthine and hypoxanthine as well as uric acid. Male keds excreted only uric acid.
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References
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NELSON, W. Purine Excretion by the Sheep Ked, Melophagus ovinus (L.). Nature 182, 115 (1958). https://doi.org/10.1038/182115a0
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DOI: https://doi.org/10.1038/182115a0
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