TiNDALE — Australian Mantidae 447 



tibia armed internally with thirteen, and externally with eleven spines. Legs 

 short, stout, green. Length, 40 mm., pronotnm, 18 mm., fore-M'ing, 30 mm. 



9 Green. Much larger than the male. Head larger, more rounded, vertex 

 strongly arched, eyes less prominent, antennae very fine, ocelli small. Pronotum 

 nearly the shape of S. tristif; female, but narrower in front, margins serrated. 

 Wings long, broad, opaque, green, traces of a stigma green, margin of fore-wing 

 beneath red. Abdomen rather broad, green. Anterior coxae with a row of about 

 eleven fore^marginal spines ; femora armed on inner margin with fifteen spines, 

 arranged as in male; tibia with nine external and thirteen internal marginal 

 spines. Liner face of first tarsal joint black, except at base. Legs green. 

 Length, 52 mm., pronotum, 17 mm., fore-wing, 36 mm. 



Hah. Queensland: Cunnamulla (H. Hardcastle). Types, I. 14071. 



This distinct species, of which we have two examples, is allied to S. tristis. 



NGAWALA gen. nov. 



, Allied to Sphodropoda. Head more compressed, facial shield not trans- 

 verse. Male with ^nngs long, the margins straight, and with a long median 

 opaque stigma on elytra. Females with wings abbreviated, rounded, reaching 

 two-thirds length of abdomen; costal margin of elytra strongly rounded. Anterior 

 tibiae armed external^ with thirteen spines, the thirteenth very small. 



Type, Hierodula dentifrons Stal. 



This genus is intermediate between Parhierodida and Sphodropoda. The 

 name is derived from a native word, "ngawal" (Kakurera tribe), meaning 

 ' ' mantis. ' ' 



NGAWALA DENTIFRONS Stal. 

 Plate xviii, fig. 43-44; xix, fig. 49. 



Hierodula dentifrons Stal, Bib. Svenska Akad., iv, 1877, p. 56; Sphodropoda 



dentifrons Kirby, Cat. Mant., 1904, p. 242, 



o Smaller than female. Head and pronotum similar, the margins of 

 pronotum faintly serrated. Wings longer than abdf)meu ; elytra narrow, 

 hyaline, fore-margin green, the hind wings wide, hyaline, the fore-margin 

 green. Anterior coxae green, femora green, with three brown spots on inner 

 margin of femur, and a median brown area. Legs greenish. Length of body, 

 60 mm., of pronotum, 18 mm., expanse of elytra, 96 mm. Darke Peak, South 

 Australia (R. G. Walsh). Type, male, I. 14059. 



Hub. South Australia, Central Australia, and Western Australia. 



The typical form has a large ferrugineous spot on the inner face of the 

 front femora. In eight female specimens from the interior this is absent. 



