192 Young Larvae o/Lyctus brunneus Steph. 



movements and its "hatching spines." Through the aperture thus caused 

 the first particles of excrement pass into the vessel. As the larva pro- 

 gresses it gradually fills the chorion with excrement. 



The larva is now travelling along the vessel towards the point of 



/ ^L me 



Text-fig. 2. 



access of its parent's ovipositor. By the time it has eaten its initial food, 

 it has nearly increased in girth enough to fill the vessel, and is able to 

 obtain a grip upon its walls and the necessary purchase — aided by the 

 anal process — to enable it to start attacking the walls and contents of 

 the vessel. 



