282 Mr. R. Shelford's Studies of the Blattidae. 



33. P. conjuncta, Shelf. 



Platyzosteria conjuncta, Shelford, \in^ Fauna Slid west 

 Austral, ii, Lief. 9, Blattidae, p. 136 (1909). 



This can be distinguished from the preceding by the 

 spines at the posterior angles of the supra-anal lamina 

 Q), from ohscura by the form of the sub-genital lamina 

 (^), and from scdbriusculci by the absence of scabrous 

 points on the dorsal surface. 



West Australia, Collie {Mickaelsen and Hartmeyer), 

 (Hamburg Mus., types), 



34. P. morosa, Shelf. (PI. VIII, fig. 21.) 



Platyzosteria morosa, Shelford, op. cit., p. 136 (1909). 



Distinguished from the preceding by the form of the 

 supra-anal lamina (^) ; the species varies considerably in 



size. 



South Australia (Oxford Mus., types) ; West 

 Australia, S. Albany, Lion Mill, Mundaring Weir 

 {Micliaclscn and Hartmeyer), (Hamburg Mus.). 



35. P. lyrcmsionalis, Tepp. 



Peri'planeta p/'ovisio7iaHs, Tepper, Tr. R. Soc. S. 

 Australia, xvii, p. 108 (1893). 



This species cannot be recognised from the description ; 

 some specimens in the Melbourne Museum, identified by 

 Mr. Tepper as provisiooialis, are young larvae that cannot 

 be referred with any certainty to this or to any other 

 species of the genus. 



South Australia, Mount Bryan East (Adelaide Mus., 

 type). 



36. P. inclusa, Walk. 



Periplaneta inclusa, Walker, Cat. Blatt. Brit. Mus., p. 



140 (1868). 



Platyzosteria inclusa, Shelford, [f/i] Fauna Slid west 



Austral., ii. Lief. 9, Blattidae, p. 137, PI. XIII, fig. 4 



(1909). 



Piceous above, sometimes variegated with castaneous on the disc 



of the thorax, nitid, impunctate. Thorax margined laterally with 



testaceo-hyaline. Head and legs rufous. Antennae rufo-castaneous. 



No tegminal rudiments. Posterior angles of abdominal tergites 



