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



trapezoidal, styles very long and slender. Cerci long and acuminate. 

 Legs rufo-castaneous. 



Total length 23-24-5 mm. ; length of body 19-21 mm. ; length 

 of tegmina, le'&lO mm. ; pronotum 7 mm. x 9 mm. 



Queensland, Moreton Bay (British Mus., type of con- 

 vexa) ; New South Wales, Sydney, Home Bush ( W. W. 

 Froggatt), (British Mus., ty^e oi rufrsccns ; Oxford Mus.). 



I have compared the types and found them identical. 

 Kirby gives the species identified by Brunner ix^ imllvpcdqyis, 

 Serv., as a synonym of r??/cscc7?-s, but in Brunner's species 

 the supra-anal lamina ( ^ ) is described as " profondement 

 decoupee," whereas in riifescens this is not the case ; this 

 is too important a character to be ignored. 



3. M. curvigera, Walk. 



Peri2)laneta curvigera, Walker, Cat. Blatt. Brit. Mus., 

 p. 134 (18GS). 



Queensland, Moreton Bay (British Mus., type). 



4. M. marginalis, Sauss. 



Pci'ijilancta marginalis, Saussure, Rev. Zool. (2), xvi, 



p. 819 (1864). 

 Periplancta, ligata, Brunner von Wattenwyl, Nouv. 



Syst. Blatt., p. 234 (1865). 



" Australia" (Paris Mus., type of marginalis); Queens- 

 land, Port Curtis (Vienna Mus., type of ligata) ; New 

 South Wales, Hunter River (Oxford Mus.). 



5. M. soror, Sauss. 



Ferijjhmcta soror, Saussure, Rev. Zool. (2), xvi, p. 319 



(1864), 

 Periplancta hiquadrata, Walker, Cat. Blatt. Brit. Mus., 



p. 134 (1868). 

 Periplaiida omdata, Walker, Cat. Derm. Salt. Brit. 



Mus., Suppk Blatt., p. 152 (1869). 

 Wodonrjia hinata, Tepper, Tr. R. Soc. S. Australia, xix, 



p. 155 (1895). 



This differs from the preceding species by the greater 

 distance apart of the eyes, the immaculate head and the 

 pale legs. The colouring of the pronotum varies a good 



