95 



Platyzosteria quadrifascia, Walker (ibid, 160). 



Deep black, oval or fusiform, very convex, very thickly and 

 minutely punctured, smooth, shining. Head thinly punctured. 

 Pronotum with fore and hindmargins ochraceous. Meso- and 

 meta-notum with hindmargins ochraceous, angles scarcely pro- 

 duced. Coxse bordered with yellow. Abdomen roughly punctured, 

 hindmargins of segments six and seven slightly and acutely pro- 

 duced. Supra-anal lamina serrate. Cerci lanceolate 



Length of body (male and female) ... 19-2-3 mm. 



Habitat.— Aiistnilia. 



Platyzosteria pectoralis. Walker (ibid, 160). 



" Black, elongate oval, convex, shining, very thinly punctured. 

 Head with a luteous dot adjoining the sockets of the antennae. 

 Pronotum irregularly bordered luteous in front and behind. 

 Meso- and meta-notum with luteous hindmargins widest laterally, 

 angles hardly elongate. Pectoral segments bordered pale yelloAv. 

 Abdomen piceous, thickly punctured. Supra-anal lamina trun- 

 cate, with a subapical spot on each side. Cerci tawny, moderately 

 long. Styles well developed. 



Length of body (male) ... ... ... 20 mm. 



Habitat. — Victoria River, North Australia. 



Platyzosteria tarsalis. Walker (ibid, 162). 



" Black, elongate oval, convex, smooth, shining. Head with 

 ocelliform spots, sockets of antennae and frontal margin tawny ; 

 antennae dark red, basal part black. Pronotum very thinly 

 punctured in the disk, also with an indistinct, scutcheon-shaped 

 figure, sides minutely tuberculate. Meso- and meta-notum 

 similar, angles not produced. IClytra slightly indicated. Cox£e 

 and femora mostly dark red, the former bordered with yellow, 

 tarsi tawny towards the tips. Abdominal segments laterally 

 tuberculate, smooth in the disk, segments six and seven wholly 

 tuberculate. Supra-anal lamina tuberculate, hindmargin emar- 

 ginate, serrate, beneath dark red in the disk. Cerci nearly 

 linear, rather slender. Subgenital lamina tawny. 



Length of body (female) ... ... 26-29 mm. 



Habitat. — New South Wales. 



Platyzosteria fChalcolampraJ cuprea, Sauss. 



Mel. Orth. v., fig. 3 ; Brit. Mus. Cat., U3. 

 Habitat. — King George's Sound and Swan River, West 

 Australia. 



Description not seen 



