Mr. R. Slielfurd's Studies of tlie Blattidae. 263 



2'. Tibiae metallic blue or green . . . E. nubilis, Br. 

 1'. Margins of pronotum not or scarcely 

 reflexed. 

 2. Lateral margins of pronotum broadly 



testaceous, disc aeneous . . . . E. patula, Walk. 

 2'. Pronotum castaneous or greenish with 



4 oblique testaceous stripes . . . E. mitchellii, Angas. 



1. ^. suhverrucosa, White. 



Blatta suhverrucosa, White [in] Grey, Journ, Exped. 



Australia, ii, p. 467 (1841). 

 Polyzosteria rejlexa, Brunner von Wattenwyl, Nouv. 



Syst. Blatt., p. 208 (1865). 

 Polyzosteria femoralis, Walker, Cat, Blatt. Brit. Mus., 



p. 156 (1868). 

 Polyzosteria figitrata, Walker, op. cit., p. 157 (1868). 



A common and well-known species ; figurata is merely 

 a larval form. 



South and Western Australia. 



2. E. sulrefiexa, Tepp. 



Polyzosteria sulrefiexa, Tepper, Tr. R. Soc. S. Australia, 

 xix, p. 158 (1895). 



The diagnosis does not show how this species differs 

 from the preceding. 



South Australia, Ooldea (Adelaide Mus., type). 



3. E. nohilis, Br. 



Polyzosteria nohilis, Brunner von Wattenwyl, Nouv. 

 Syst. Blatt., p. 209 (1865). 



Polyzosteria suhnohilis, Tepper, Tr. R. Soc. S. Aus- 

 tralia, xvii, p. 81 (1893). 



Tepper failed to recognise Brunner's species, his descrip- 

 tion of suhnohilis corresponds exactly with nohilis; the 

 smooth spaces that he describes on the abdominal tergites 

 are hidden in contracted examples. 



South Australia, Adelaide, Kangaroo Is.; West 

 Australia, Swan River (Vienna Mus., type; British 

 Mus. ; Oxford Mus. ; Adelaide Mus., type of suhnohilis). 



