136 R- SHELFORD, 



completely articulated. Supra-anal lamina trigonal, apex truncate and rather 

 deeply emaririiiate. lateral margins entire and faintly concave, exceeded 

 by cerci. Subgenital lamina quadrate, posterior margin concave, no spine 

 at base of styles. Coxae narrowly bordered with testaceous. Legs piceous. 

 Length 20.1 mm.; pronotum o.s mm. X 8 mm. 



The species is near P. castanea BR. but may be distinguished by its 

 smaller size and piceous colour. 



Stat. 116, East Fr em an tie, Recreation Ground (2 <J). 



Platy&osteria niorosa n. sp. 



Piceous, nitid, impunctate. Antennae piceous in basal third, remainder 

 rufous. Tegminal rudiments present. Posterior margin of 7 th abdominal 

 tergite minutely serrate. Supra-anal lamina (<J) subquadrate, posterior 

 angles rounded, lateral margins dentate, posteriorly emarginate, rufo- 

 fimbriate, not scabrous; (?) triangular, cucullate, lateral margins serrate, 

 apex emarginate. Cerci barely exceeding supra-anal lamina of 2. Sub- 

 genital lamina (<J) quadrate, together with the two preceding sternites 

 scabrous with minute tubercles, a small spine at base of each genital 

 style. Coxae unicolorous. 



Length (<J) 21 mm., (?) 23.5 mm. ; prouotum () 6.8 mm. X 9.1 mm., 

 (?) 6 mm. X 9 mm. 



Types $ and ? in Oxford Museum from Adelaide. 



The species is near P. ceratodi KRAUSS but differs in the absence of 

 punctures on the mesonotum : it also resembles P. biglumis SAUSS. 

 (= subaptera, BR.), but differs in the completely articulated tegminal 

 rudiments and the smooth impunctate surface. 



Stat. 99, Lion Mill; Stat. 101, Mun daring Weir; Stat. 129, 

 Jarrahdale; Stat. 158, Broome Hill; Stat. 165, Albany; Stat. 167, 

 South Albany. (3 rf, 3 ?.) 



Platyzosteria conjuncta n. sp. 



Plate XIII, Fig. 5, 6. 



Allied to P. glabra WALK, but smaller and the legs castaneous. 



Tegmiual rudiments about three-quarters articulated. Supra-anal 

 lamina (<$) quadrate, angles acute, and armed with a tine spine, posteriorly 

 not emarginate, rufo-timbriate ; (?) bluntly triangular, cucullate, margins 

 entire, posteriorly emarginate. Subgenital lamina (<J) quadrate, a prominent 

 blunt process at the base of each style on the inside. Coxae not bordered 

 with testaceous. Length (J) 17 mm., (+') 20 mm.: pronotum 56 mm. 

 X 7-8 mm. 



