PLATE VI. 



FIG. 



1. Ootheca of Ectobius* Stephens, (pp. 76, 82) x 5. 



2. Blattella germanica Linnaeus, ventral aspect when carrying 



ootheca. (p. 88) x 2. 



3. Ootheca of Periplaneta americana Linnaeus, with nymph 



emerging, (p. 102) x 2. 



4. P. americana carrying ootheca, dorsal view. (p. 102) 



x 2. 



5. P. americana, lateral view. x 2. 



6. P. americana, ventral view. x 2. 



7. Forficula auricularia Linnaeus, in nest with eggs. (pp. 49, 



50) Nat. size. 



8. Nest of F. auricularia, containing eggs. Nat. size. 



* Probably E. panzeri. 



