Mr. R. Shelfurd's Studies of the Blattidae. 269 



dominal ter- 

 gite not den- 

 tate. 

 12. Legspiceous. P. glabra, Walk. 

 12'. Legs cas- 



taneous . P. conjuncta, Shelf. 

 11 '. Posterior mar- 

 gin of 7th ab- 

 dominal ter- 

 gite dentate . P. morosa, Shelf. 



Species incertae sedis P. provisionalis, Tepp. 



1'. Not uniform piceous or castaneous. 

 2. Castaneous or piceous with lateral 

 flavo-testaceous or white borders, 

 abdomen not transversely banded. 

 3. Tegminal rudiments absent. 

 4. Pale lateral borders not extend- 

 ing beyond 2nd abdominal 

 tergites, or if extending so far 

 much narrowed. 

 5. Small species (15 mm.) . . P. inclusa. Walk. 

 5'. Larger species. 



6. Disc of pronotum not varie- 

 gated with paler colour . P. alhomarginata, Br. 

 6'. Disc of pronotum varie- 

 gated with paler colour. 

 7. Coxae and femora castan- 

 eous ; supra-anal lamina 

 ( (J ) with two large spines 



at apex P. bnmnea, Tejip. 



7'. Coxae and femora test- 

 aceous, supra-anal lamina 

 ( (^ ) without large spines 



at apex P. variegata, Shelf. 



4'. Pale lateral borders extending 

 at least to 5th abdominal 

 tergite. 

 5. Terminal abdominal sternites 



not armed with spines . . P. obscuripes, Tepp. 

 5'. Terminal abdominal sternites 



armed with s^iines ... P. spenceri, sp. n. 

 3'. Tegminal rudiments present. 

 4. Pale lateral borders not ex- 

 tending on to abdomen or 



