Mr. R. Shelford's Studies of the Blattidac. 293 



metatarsus unarmed beneath, equal to the remaining joints in 

 length, its pulvillus apical. 



Type of the genus — Z. alutacca, Still. 



KEY TO SPECIES. 



1. Dorsal surface granulate ; smaller species. 



2. Tibiae unicolorous, testaceous . . . . Z. medi7iHen,Tepp, 



2'. Tibiae castaneous on dorsal asj^ect, 



testaceous on ventral aspect. 



3. Pro- and mesonotum with lateral 



fuscous vittae, abdomen above 



transversely banded with fuscous 



and olivaceous Z. alntacea, Stal. 



3'. Pro- and mesonotum without lateral 

 fuscous vittae, abdomen above 

 unicolorous, testaceous . . . . Z. pallida, Shelf. 

 r. Dorsal surface with large shallow punc- 

 tures ; robust species. 



2. Femora and tibiae purple Z. eastii, Tepp. 



2'. Femora and tibiae rufo-testaceous . . Z. robusta, sp. n. 



1. Z. mcdilinca, Tepp. 



Kncphasia mcdilinca, Tapper, Tr. R. Soc. S. Australia, 

 xvii, p. 100 (1893). 

 Readily distinguished by the dark median line, extend- 

 ing from the posterior border of the pronotum to near the 

 apex of the abdomen. 



Victoria, Lillimur ; South Australia, Sedan, 

 Northern territory (Adelaide Mus., types) ; West 

 Australia, Mt. Robinson (Hamburg Mus.; Oxford Mus.). 



2. Z. cdutacca, Stal. 



Zonioiiloca alutacca, Stal, Bih. Svensk. Akad. ii (18), 



p. 13 (1874). 

 Platyzosteria ardrossanensis, Tepper, Tr. R. Soc. S. 



Australia, xvii, p. 92 (1893). 



Tepper's description of ardrossanensis corresponds 

 perfectly with alutacca, the type of which has been kindly 

 lent to me by Dr. Y. Sjostedt of Stockholm. 



" Australia " (Stockholm Mus., type of alutacca) ;■ 

 Queensland (Oxford Mus.) ; South Australia, 

 Anirossan (Adelaide Mus., type of ardrossanensis) ; West 

 Australia, Albany (Deutsche Entom. National Museum). 



