160 
oblong spots around and adjoining the dark area; hindmargin 
rectangular, straight, angles slightly rounded. Meso- and meta- 
notum similar, dark disk semicircular, hindmargins straight, 
angles slightly produced, subacute. Underside brownish tawny, 
lateral margin white. Cox brownish tawny, femora testaceous, 
tibie (except base) black, spines brown. Abdomen above 
narrowly banded black behind, shading into reddish medially, 
with some 2—4 minute black dots on each side near end of 
bands (behind) on segments 2—5 ; segments angular, 5—7 pro- 
duced as a small spine; lateral and hindmargins beneath pale, 
last two segments with black disk. Supra-anal lamina transverse, 
very short, rounded, middle deeply incised, the sutural angles pro- 
duced as rather long, terete, acute spines, base narrowly black, 
remainder pale yellow. Cerci nearly as long as the laminal 
spines, flat, black, apex dusky yellow. Subgenital lamina trans- 
verse, quadrangular, longer than the upper lamina, excepting the 
spines, black, hindmargin straight, entire. Styles inserted 
beneath the middle of the lateral margin, exceeding the hind- 
margin greatly. 
Length of body ... BA of .. 24 mm. 
Length of pronotum a ich sta MG ERE 
Width of pronotum ie Se: 2H Oss Se 
Hab.—Coolgardie, Western Australia. S.A. Museum; pre- 
sented by Ch. French, F.L.S. 
The somewhat defective specimen from the now famous 
Western goldfield is so distinct in its characters, that there is 
little hesitation in assigning its specific rank. Resembling 
P. latizona and P. zebra in color, it differs from them in size, 
texture of scutum, and the form of the anal lamina. 
*PLATYZOSTERIA MACULIMARGINATA, sp. 7. 
Female. Dark brownish red. Head brownish red; antenne, 
palpi, and labrum black, anterior margin of last pale. Pronotum 
semicircular, lateral margin scarcely reflexed, foremargin narrowly 
pale yellow; lateral margin and disk concolorous, with numerous 
remote impressed dots; hindmargin partly with a very narrow 
pale border. Meso- and metanotum similar, lateral and hind- 
margins black, latter very narrowly bordered pale. Pectus and 
coxee black, latter bordered whitish; femora and tibiz testaceous, 
tarsi black above, pale beneath. Abdomen above impressed 
rugulose, segments acutely rectangular, segment six alone with 
hindangles acutely produced; posterior half of each and the 
lateral margins wholly black ; along the latter (except the sixth) 
in each segment a yellow spot, decreasing in size toward the apex 
(sometimes more or less obsolete), and more or less distinctly re- 
produced beneath. Supra-anal lamina transverse, sinuate, apex 
