254 



INSECT TRAx\5;F0RMATI0i\S. 



Crane fiy ovipositing, and tlie larva beneath, in tlie earth, feeding 

 upon grass roots. 



pared off from the surface, the only plant untouched 

 being the tiny bird tare {Ornithoijus perpusiUus). 

 On digging here to learn the cause, we found these 

 larvoB already full-fed, and about to pass into pupse, 

 after having left nothing upon which they could subsist. 

 It was not a little remarkable that they seemed to be 

 altogether confined to this spot; for we did not meet 

 with a single foot of turf destroyed by them in any- 

 other part of the heath, or in the adjacent fields. So 



