286 Mr. E. Shelford's Studies of the Blattidae. 



Western Australia, Swan River (British Mus., type); 

 South Australia, various localities (Michaelsen and 

 Hartmeyer), (Hamburg Mus. ; Oxford Mus.). 



This is a someAvhat anomalous form as shown by the 

 curious secondary sexual characters of the male. 



45. P. suh-hifasciata, Tepp. 



Drymaplancta suh-hifasciata, Tepper, Tr. Roy. Soc. S. 

 Australia, xvii, p. 112 (1893). 



Evidently described from a larva. There is an adult 

 $ in bad condition and without label in the Oxford 

 Museum ; in this the lateral yellow border of the thoracic 

 tergites is interrupted at the mesonotum b}' the tegminal 

 rudiments, which are piceous. The species is readily recog- 

 nisable by the production, along the hind-margins of the 

 pro- and meta-notum, of the lateral yellow border. 



South Australia, Northern territory (Adelaide Mus., 

 type). 



40. P. liturata, Sauss. 



Folyzosteria liturata, Saussure, Mem. Soc. Sci. Phys. 

 Nat. Geneve, xxiii, p. 108, PI. X, fig. 3G (1873). 



Known to me only from the description. 



New Georgia (Geneva Mus., type). 



47. P. circumdiicta, Walk. 



Periplancta circnmducta, Walker, Cat. Blatt. Brit. 



Mus., p. 143 (1868). 

 Drymaplancta sithmarr/inata, Tepper, Tr. R. Soc. S. 



Australia, xvii, p. Ill (1893). 



Closely allied to P. soro7; Br., but the flavo-testaceous border runs 

 completely round the body including the anterior margin of the 

 pronotum and so much as is visible of the 8th abdominal tergite. 

 Supra-anal lamina ( ^ ) quadrate, margins entire, posteriorly not 

 emarginate. A small spine at base of styles. 



? Loc. (British Mus., type of circumducta) ', South 

 Australia, Kangaroo Is,, Mount Lofty range (Adelaide 

 Mus., type of suhniarf/inata). 



