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



margins of cerci, margins of coxae and apices of femora, oclireous 

 yellow. Supra-anal lamina, ( ^ ) with posterior angles very acute, all 

 the margins concave, ( 9 ) sub-bilobate, scarcely cucullate. Posterior 

 angles of 7th abdominal tergite less strongly produced than in the 

 preceding sjiecies. Coxse, femora and apex of abdomen beneath 

 castaneous. Genital styles incui'ved, short, obtuse. Tibiae above 

 shining blue, beneath piceous, spines testaceous tipped with fuscous. 

 Total length ( (^ ) 28 mm., (?) 20 mm. ; pronotnm 9-9*5 mm. x 17- 

 19 mm. 



" Australia " (British Mns., type ; Oxford Mus.). 

 The form of the supra-anal lamina of the ^ is charac- 

 teristic. 



10. P. viridissima, sp. n. 



$ . Dark aeneous-green, margins of the coxae, outer apical angles 

 of the coxae, cerci beneath and outer margins above, extreme apices 

 of femora beneath, testaceous. Antennae, mouth-parts and genital 

 valves piceous. Dorsal surface finely punctate. Abdominal stigmata 

 distinct. Supra-anal lamina cucullate, apex not emarginate, not 

 exceeded by the cerci which are flattened, blunt and with the articu- 

 lation obscure. Tibial spines castaneous. 



Length 26*5 mm.; pronotum 8 mm. x 15*2 mm. 



New South Wales, Mt. Kosciusko ( W. W. Froggatt), 

 (British Mus., type). 



The species is much more convex than P. invisa and the 

 shade of the supra-anal lamina is different ; it may possibly 

 be conspecific with P. iridicolor, but it is certainly differ- 

 ently coloured. 



Genus 2. EuzosTERiA, nov. 



Polyzosteria, auctorum (partim). 



Characters. Similar to Polyzosteria but the spines on outer 

 aspect of tibiae triseriately arranged. Margins of pronotum more 

 or less reflected. Ocelli occasionally present. Supra-anal lamina, 

 ((^ ) with less acute angles, ( 9 ) more rounded, less bilobate. 



Type of the genus — H. suhvermcosa, White. 



KEY TO THE SPECIES. 



1. Margins of pronotum strongly reflexed. 



T rr-i • J. i. ( E. subverrucosa, White 



2. iihiae testaceous J. ' 



(E. sxihreflexa, Tepp. 



