Mr. R. Shelford's Studies of the Blattidae. 297 



Queensland (British Mus., type of qvadri fascia ; Ox- 

 ford Mus.; Melbourne Mus.); South Australia, Northern 

 territory (British Mus., typo of pectoralis ; Oxford Mus. ; 

 Adelaide Mus., type of trifasciata; Melbourne Mus.), 

 Port Essingtou (British Mus., type of zonata. ; Oxford 

 Mus). 



3. C. maculimarginata, Tepp. 



Flat II zoster ia. maculimarginata, Tepper, Tr. R. Soc. 

 S. Australia, xix, p. 160 (1805). 

 Known to me only from the description; it may be only 

 a varietal form of the preceding. 



N. Queensland (Adelaide Mus., type). 



4. G. hicolor, Sauss. (PI. IX, tig. 33.) 



Polyzosteria hicolor, Saussure, Rev, Zool. (2) xvi, p. 

 307 (186*); Mem. Soc. Sci. Phys. Nat. Geneve, 

 XX, p. 259 (1869). 



Polyzosteria. liyata, Brunner von Wattenwyl, Nouv. 

 Syst. Blatt., p. 220 (1865). 



Pkdyzosteria siohzonata, Tepper, Tr. R. Soc. S. Aus- 

 tralia, xviii, p. 181 (1894). 



This is another species that in coloration is very 

 variable ; the form suhzcmata has the posterior margins of 

 the thoracic tergites narrowly bordered with oclireous 

 but is otherwise indistinguishable from the type form. 

 Structurally the species differs from C. zonata, Walk., as 

 follows : — The abdomen is less scabrous, none of the 

 abdominal tergites or sternites are laterally serrate, tlie 

 posterior angles of the 7th abdominal tergite are scarcely 

 produced, the supra-anal lamina (,^) has minute, non- 

 deflexed spines at the posterior angles, (^) with the margins 

 entire. 



" Australia " (Geneva Mus., type of hicolor) ; Queens- 

 land (Oxford Mus.), Port Curtis (Vienna Mus., type of 

 ligata), Stradbrooke Is. (coll. Froggatt) ; Victoria (Ade- 

 laide Mus., type of s)i.hzonafa) ; New South Wales, 

 Darling river (Oxford Mus.; Melbourne Mus.). 



5. 0. gloriosa, sp. n. 



9 . Dark castaneons ; thoracic tergites with large triangular 

 flavid blotches situated near their posterior angles. Abdominal 



