. Outlines of zoology. duced into its with the sting there are a pair of delicate tactile palps. Inthe queen the sting is curved and more powerful, but it is apparentlyonly used in combat with a rival. In the worker, the sting, and with ita portion of the gut, is usually lost after use, and, in consequence,?death ensues; the queen, on the other hand, can withdraw her stingfrom the wound with considerable ease. The sting is really an•ovipositor adapted to a new function. Naturally, therefore, there is notrace of it in the drones. Nervous system,—In the adult this exhibits consi


. Outlines of zoology. duced into its with the sting there are a pair of delicate tactile palps. Inthe queen the sting is curved and more powerful, but it is apparentlyonly used in combat with a rival. In the worker, the sting, and with ita portion of the gut, is usually lost after use, and, in consequence,?death ensues; the queen, on the other hand, can withdraw her stingfrom the wound with considerable ease. The sting is really an•ovipositor adapted to a new function. Naturally, therefore, there is notrace of it in the drones. Nervous system,—In the adult this exhibits considerable BRITISH HIVE-BEE. 335 fusion of parts. The supra-oesophageal ganglia are verylarge, and send large lateral extensions to the compoundeyes. This brain is best developed in the activeworkers. The sub-cesophageal mass is formed by thefusion of three pairs of ganglia. In the thorax there aretwo pairs of ganglia, of which the second supplies the wingsand the two last pairs of legs. In the worker there are five.


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Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192, booksubjectzoology