161 
rounded. Cerci? Subgenital lamina large, middle rotundately 
produced, laterally sinuate, valvules not free, but suture deeply 
and broadly impressed. 
Length of body ... wy; ... 20-22 mm. 
Length of pronotum he Se) OK 
Width of pronotum a See.) 
Hab.—Northern Queensland. S.A. Museum (presented by 
Ch. French, F.L.S.). 
The species, of which two specimens are before me, appears to 
belong to the type of P. trifasciata and picta, m.; but is other- 
wise very different from any I know. 
*PLATYZOSTERIA SP. 
Male. Resembling P. melanaria. Coxe black, bordered 
whitish behind; femora red. Supra-anal lamina subrotundate, 
margin entire or slightly emarginate. Subgenital lamina entire, 
with hindmargin straight, spines at the angles much shorter than 
the styles. 
Hab.—Coolgardie, Western Australia (presented by C. French, 
iEPEES.). 
Material insufficient for determination at present. 
PERIPLANETA ORIENTALIS, LZ. No. 26. 
Hab.—Frankston, Victoria. 
PERIPLANETA AMERICANA, L. No. 38. 
Hab.—Fernshaw (!), Victoria. 
PERIPLANETA PROVISIONALIS, m. (Trans. Roy. Soc., 8.A., 1893, 
p. 108) (2). No. 45. 
The species was previously described from the female alone, 
the above, I believe, is the male, although somewhat different, 
and resembies Derocalymma in outline. 
Male. Reddish brown, scabrous, elongate, convex. Head 
partly free, testaceous ; eyes widely apart, antennz much shorter 
than the body. Pronotum elliptical, disk nearly smooth, lateral 
margin very narrow, scarcely deflexed, hindmargin straight, 
angles rounded. Meso- and metanotum angular, scabrous all 
over with minute raised tubercles ; lobes of elytra not free, very 
narrow. Coxe blackish, margins broadly tawny; femora 
testaceous ; tibie brown, first tarsal joint blackish, remainder 
reddish yellow. Abdomen minutely scabrous, segments angular, 
the last two with hindangles spine-like produced, segment 7, very 
much rounded behind ; underside red. Supra-anal lamina very 
narrow, elongate, triangular, apex cordately emarginate. Cerci 
