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Objective: By studying the bimaculata micado tail shall receptors morphology, institutions and their distribution, explore double Metathoracic cercus receptor types and functions, to explore the physiological significance of the insect receptors. Method: Entity dissecting microscope the morphological observation of bimaculata micado tail, MOTICAM1300 digital camera take pictures; scanning electron microscope products double Metathoracic End to receptors, and record a comparative analysis; using nickel chloride retrograde staining and silver sensitizing color the Law Research abdominal end morphology of neurons in the brain distribution. Results: the double Metathoracic cercus receptors including rod-like receptors, Silky-like receptors, thorn sensilla, bell-shaped receptors and an as yet to see these five records of novel receptors. Each distribution, morphology and function of the receptors are not the same. Tail to be the base of the inside of double Metathoracic rod receptors and rarely see other receptors, mainly outside of Silky-like receptors, a small amount of barbed sensilla, basic rod receptors; dual Metathoracic Last shall be the middle of the thorn-shaped susceptor, especially inside, the presence of a certain number of its outer Silky shaped susceptor, the end of rod-shaped objects bias direction at a certain angle. In the estrogen-shaped double Metathoracic tail to be in, found a new type receptors, about 400-700μm long, silky-like receptors similar and different in that its base or rod-shaped objects, rosary-like protrusions. Often appear at the tip of the tail, and the small number of function is unclear, because of its not found male double Metathoracic, therefore infer such sensor may breeding and spawning behavior. Two-spotted cricket the cercus tip of the receptors is still the main thorn sensilla, found occasionally Silky sensilla, but the rod-shaped objects tend cercus angle smaller, more near the tip of the rod-shaped objects tend cercus angle smaller. The cercus sensor in the abdominal ganglion at the end of the projection fibers distributed in the abdominal ganglion at the end of the bottom side of the end of the fiber does not cross the midline portion of the ganglion, a small amount of nerve fibers projected to the midline, that have the two staining won fiber path distribution of a small number of neurons in the abdominal ganglion at the end of the lower segment, in which the line only to see a neuronal cell bodies. Ganglion bottom side of the end of the end of the abdominal fewer neurons, dorsal which a fiber branch. Summing up the appeal, the cercus sensor abdominal ganglion at the end of the fiber projected onto multi-projection to the ventral side, and a small amount of projection to the dorsal.
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