Mr. R. Shelford's Studies of the Blattidae. 259 



the synonymy. A study of a long series convinces me 

 that aenea is merely a colour variety of limbata ; in typical 

 limhata the colour is blackish and the yellow lateral 

 margins of the pronotum are broad, whereas in typical 

 acnea the colour is greenish-bronze and the pronotum is 

 very narrowly flavo-marginate, but I have seen several 

 intermediate specimens. The two examples of P. nitens in 

 the British Museum look as if they had been varnished, 

 but they show no characters whereby they can be separ- 

 ated from typical limhata. The only specimen of P. 

 frenchii that I have seen is in the Melbourne Museum, it 

 was determined by Mr. Tepper himself and is certainly the 

 same as P. limbata. I have not seen the type. 



New South Wales; Victoria; South and West 

 Australia; Tasmania. 



2. P. iridicolor, Tepp. 



Polyzosteria. iridicolor, Tepper, Tr. E,. Soc. S. Aus- 

 tralia, xvii, p. 78 (1893). 

 Known to me only by the description. 



South Australia, Gawler range. (Adelaide Mus., 

 type.) 



3. P. hagoti, Tepp. 



Polyzosteria hagoti, Tepper, t.c, p. 79 (1893), 



Known to me only by the description. It appears to be 

 distinguished by the dorsal surface furnished with " irregu- 

 lar low tubercles." As it is only 14-16'5 mm. in length, 

 it is probably the larva of some previously described 

 species. 



South Australia, Port Augusta. (Adelaide Mus., 

 type.) 



4. P. cuprea, Sauss. 



Polyzosteria cuprea, Saussure, Mem. Soc. Sc, Phys. 



Nat. Geneve, xvii, p. 133, PI. I, f. 2 (1864). 

 Polyzosteria maculata, Brunner von Wattenwyl, Nouv. 



Syst. Blatt., p. 206 (1865). 



A well-known species. 



South and West Australia. 



s 2 



