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Accessory to the salivary apparatus there is on the ventral side of the head, underneath the pharynx, a peculiar organ which the Germans have called the "Wanzenspritze," or syringe. The accompanying figure of the structure in Fulgora maculata shows its relation to the ducts of the salivary glands and to the beak. It is made up of a dilatation forming the body of the pump, in which there is a chitinous piston. Attached to the piston is a strong retractor muscle. The function of the salivary pump is to suck up the saliva from the salivary ducts and to force it out through the beak.

Author

Handbook of Medical Entomology
By William Albert Riley and Oskar Augustus Johanssen
Published in 1915
Available from gutenberg.org

Posted on

Saturday 16 October 2021

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458*1200

Tags

Insects

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• Natural History / Insects

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