MECHANORECEPTION 



53 



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Fig. 44. A. Right wing oiEmpis. B. Enlarged viewof insectshowinglocation 

 and orientation of campaniform sensilla. Ri, R2, R3, radial groups; 

 Sci, Scg, Scg, subcostal groups with arrows indicating the orientation of 

 the long axes of the sensilla. C. Right wing of Panorpa communis 

 showing the location of chordotonal sensilla. 1, 2, 3, 4, ante-alar, 

 radial, medial, and cubital sensilla respectively; Co, costa; Sc, sub- 

 costa; R, radius; M, media; Cu, cubitus; A, anal. (Redrawn from 

 Pringle, 1957 after Zacwilichowski.) 



