88 



Platyzosteria Avocaexsis, sjjec. nov. 

 Chestnut-brown, shining, with minute impressed dots over the 

 whole dorsal surface, interspersed distantly with larger ones on 

 the thoracic segments. Antennae blackish at the base, gradually 

 paler towards the apex. Legs dark -brown, long; tibia? and tarsi 

 black, claws reddish ; femora with numerous, rather-long spines. 

 Abdomen smooth in the disk, margins and the two last segments 

 rugulose, hindmargins of all regularly and minutely tuberculate ; 

 hindangles, especially of the hinder segments, produced into 

 acute spines, those of the last denticulate laterally. Supra- anal 

 lamina of female very rugose, serrate, and denticulate, slightly 

 emarginate. Cerci lanceolate, much shorter than lamina, apex 

 very acute. 



Female. 

 Length of body ... ... ... ... 25 mm. 



Length of pronotum ... ... ... 7 " 



Width of pronotum ... ... ... 13 " 



Width of abdomen 14 " 



Habitat. — Avoca, Riverina District of New South Wales, 

 A female, bearing the egg-capsule, was presented to the S.A. 

 Museum by Miss Cudmore, of the above locality, in 3Iay, 1888. 

 The capsule is reddish-brown, 10 mm. long, and 4 mm. in vertical 

 diameter ; the ridge has 23 very small teeth, and laterally 10 

 semi-cylindrical short keels adjacent to the suture, but separate 

 from it, longest in the middle, and only indicated at the ends. 

 The mesonotum exhibits a curious abnormity, viz., a considerable 

 abbreviation of the left margin for the whole width of the seg- 

 ment, showing several rugosities, and at the anterior angle a 

 short free lobe projecting from the underside of the pronotum. 

 The opposite side is quite normal. 



Platyzosteria scabra, Brunner (Syst., 213). 

 " Deep black, rather broad and conxex. Abdomen dorsally 

 with elevated dots and streaks, the last segments laterally serrate. 



Male. Female. 



Length of body ... ... 27 mm. 31 mm. 



Length of pronotum ... 8 " 8 " 



Width of pronotum ... 13 " 14 " 



Habitat. — Sydney, New South Wales." 



Platyzosteria scabrella, spec. nov. 

 Dull deep-black, lateral margins narrow deep-red, rarely wholly 

 black. AntennjB with the long basal joints black, remainder yellow. 

 Pronotum with more or less numerous, rather large, impressed 

 dots. Meso- and meta-notum rugose with irregular raised asper- 

 ities. Abdomen asperous with small tubercles along the hind- 



