Mr. R. Shelford's Studies of the Blattidae. 298 



metatarsus unarmed beneath, equal to the remaining joints in 

 length, its pulvillus apical. 



Type of the genus — Z. alutacca, Stai. 



KEY TO SPECIES. 



1. Dorsal surface granulate ; smaller species. 



2. Tiljiae unicolorous, testaceous . . . . Z. ?He(;iI/?iHea,Tepp. 



2'. Tibiae castaneous on dorsal aspect, 



testaceous on ventral aspect. 



3. Pro- and mesonotum with lateral 



fuscous vittae, abdomen above 



transversely banded witli fuscous 



and olivaceous Z. (dntacea, Stal. 



3'. Pro- and mesonotum without lateral 

 fuscous vittae, abdomen above 

 unicolorous, testaceous . . . . Z. pullidn, Shelf. 

 1'. Dorsal surface with large shallow punc- 

 tures ; robust species. 



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



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



1. Z. iiu'dllinca, Tcpp. 



Knc'phasia mcdilincn, Tapper, Tr. R. Soc. S. Australia, 

 xvii, p. 100 (1<S93). 

 Readily distinguished by the dark median line, extend- 

 ing from the posterior border of the pronotuin 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. alntaeea, Stal. 



Zonioploca alutacca, Stal, Bih. Svensk. Akad. ii (lo), 



p. 13 (1874). 

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



Australia, xvii, p. 92 (1893). 



Tepper's description of ardrossuMensis 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, 

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

 Australia, Albany (Deutsche Entom. National Museum). 



