STINGS OF INSECTS. 



599 



after one or more of the six lancets have pierced the flesh ; 

 it will inflict a severe though minute wound, the pain of 

 which is increased by an acrid liquid injected into it 

 through a curiously-formed proboscis ; this latter is covered 

 over with feathers or scales. A magnified view of one of 

 these feathers is seen at No. 3. Another scale from a 



1. Head of CvJex pipieiu, Female Gnat, detached from the body. 2, Wing. 

 .3, A Scale from the Proboscis. 4, Proboscis and Lancets. The reticulation 

 on each aide of the head showg the space occupied by the eyes. The feather 

 or scale from proboscis IK magnified 250 diameters 



