and the Gonapophyses in the Dennaptera. 259 



In Pyragra fuscata we have an analogous arrangement, 

 the pygidium being transverse and in the form of an obtuse- 

 angled triangle, with the apex truncate, at which point is 

 the clear junction with the metapygidium, which narrows 



Fig. 2. — Pyragra fuscata, Serv. 



towards the apex : the telson seems to be intimately con- 

 nected to the metapygidium, and is of irregular shape, but 

 smaller than the pygidium. The latter has a well-marked 

 median depression. 



In Diplatys gladiator, the pygidium is broad at the base, 



Fig. 3. — Diplatys gladiator. Burr, (5 . 



but abruptly narrowed, the sides being nearly parallel : 

 beyond this point, the detail is obscure in my specimen, 

 but there seems to be a rectangular metapygidium clearly 

 joined to the pygidium, and a broader, irregularly shaped 

 telson ^ 



