93 



finely ciliate ; of female conical, rounded, slightly emarginate, 

 varied with black. Cerci of both sexes linear, apex shortl}^ 

 acuminate, bristly. Subgenital lamina of male subquadrate, 

 angular, broadly emarginate, angles blunt ; styles slender, witli 

 blacK tips. Subgenital plate of female triangular, concolorous. 



Length of body 

 Length of pronotum 

 Width of pronotum 



Habitat. — Ardrossan (\ 

 S.A. Museum. 



A pair of adults and two female larvae w^ere captured by me 

 towards the end of November under stones ; a young, very pale 

 male larva? from Nalpa, Lower River Murray (presented by Dr. 

 J. E. Stirling), appears to belong also to this species, although 

 somewhat different. 



Platyzosteria ligata, Brunner (Syst., 220). 



Cosmozosteria ligata, Stal, Rech. Blatt., 1877. 

 Reddish-cfiestnut, wholly bordered with pale-yellow. Wingless. 

 Abdomen of male dilated, depressed, hindangles obtuse. SujDra- 

 anal lamina of male transverse, hindmargin straight, entire. 

 Subgenital lamina produced, in the middle triangularly emargin- 

 ate, lobes acute angular, lateral margins sinuate ; styles very 

 long, inserted at base. 



Male. 



Length of body ... 18 mm. 



Length of pronotum ... ... ... 6 " 



W^idth of pronotum ... ... ... 9-5 " 



Habitat.— Vort Curtis, Queensland." 



Not haviiig seen Stal's definition of the genus, I prefer record- 

 ing the species under Brunner's name. It may perhaps become 

 advisable to unite all the consiDicuously-banded species in a 

 separate genus. 



Platyzosteria (PoJyzosteria) bifida, Saiis^ure. 



Mel. Orth., in Memoires Soc. Phys. de Geneve, 1873. 

 Habitat. — ^Queensland 

 Description not seen. 



Platyzosteria lateralis, Walker (Brit. Mus. Cat., 154). 



" Black, convex, elliptical, very thinly punctured, lateral 

 margins dark-red ; Vjeneath piceous, shining, and thinly punc- 

 tured. Head piceous ; antenme black, stout. Pronotum with 

 an ochraceous point in front, and a broad, oblique streak laterally 

 and anteriorly. Meso- and meta-notum with an ochraceous spot 



