Mr. R. Shelford’s Studies of the Blattide. 503 
53. Oniscosoma punctosa, W1k. 
Ischnoptera (2) punctosa, Walker, |.c. p. 149 (1869). 
Ischnoptera punctuosa, Tepper, Tr. R. Soc. S. Austral. 
xvu, p. 55 (1898). 
Pseudopanchlora punctosa, Kirby, Syn. Cat. Orth. i, 
p. 189 (1904). 
f 2 AUSTRAT TAG 
Head castaneous, darkest on the frons which is very concave ; 
ocelli testaceous ; eyes wide apart; on the vertex a longitudinal 
carina testaceous in colour ; antennz mutilated, fuscous. Pronotum 
cucullate, an anterior carina, two converging impressions posteriorly ; 
its surface covered with granules, anterior margin slightly reflexed, 
posterior margin angulate ; testaceous with castaneous mottlings and 
a quadrate castaneous patch on posterior part of disc. Tegmina 
testaceous, mottled with castaneous, six toseven costal veins. Wings 
hyaline, venation as in O. yranicollis, Sss. Abdomen above testace- 
ous, below testaceous with a castaneous patch on the disc ; supra- 
anal lamina short not projecting so far as the sub-genital lamina ; 
cerci short. 
Length of body 11 mm. ; length of tegmina 10-4 mm. 
There is really nothing to prevent the inclusion of this genus in 
the sub-family Perispheriine ; the sexual diniorphism debars it from 
occupying a natural position in the Panchlorine. 
Sub-fam. CORY DIIN A. 
54, Corydia dasytoides, Wk. 
Euthyrrapha dasytoides, Walker, 1. c. p. 191 (1868). 
Corydia tonkinensis, Kirby, A.M.N.H. (7) x1, p. 405 
(1903). 
®, AMOY. 
Walker regarded as a variety of this species, another 
species from Siam which is evidently quite distinct, being 
the same as C. xnea, Br.; it is a 2 collected by Mouhot. 
The genus Corydia includes five closely allied species, 
some of which may possibly be regarded later as mere 
geographical races of one species; unfortunately the insects 
are rare in collections and additional examples are required 
before the exact relationships that they bear one to 
another can be elucidated. The following key will help 
in the identification of the species. 
