Fig. 113. The Common Dart Moth (Agrotis segetum) 

 1, Moth flying. 2, Caterpillar. 



Fig. 114. The Heart-and-dart Moth (Agrotis 



exclamationis) 



I, Moth at rest. 2, Caterpillar. 3, Earthen case 

 surrounding chrysalis. 4, Chrysalis. 



Fig. 115. Ghost-swift Moth (Hepialug Humuli) 



1 and 2, Eggs (nat. size and magnified). 3, Caterpillar. 

 4, Chrysalis. 5 and 6, Moths, male and female (nat. 



size). 



183 



Eelworms or Nematoid Worms (Tylenchus) 



1, Transverse section of Carnation leaf, showing 

 eelworms in the tissue. 2, Portion of Carnation leaf 

 (magnified 50 times), showing worms escaping from 

 the eggs and also fully developed. 3, Surface view 

 of leaf of Oncidium, showing egg-containing pustules 

 bursting. 4, Transverse section of leaf of Oncidium, 

 showing eggs containing worms ready to hatch out 

 in pustules on both surfaces, and worms in the 

 tissues. 5, Portion of root of Cucumber (highly 

 magnified), showing a cyst containing eggs in the 

 centre; also eggs at the lower right-hand corner 

 from which the worms are escaping, and worms that 

 have escaped. 



