Mr. R. Shelford's Shidies of the Blattidie. 503 



53. Oniscosoma pu7ictosa, Wlk. 



Ischnoptcra (J) ptmdosa, Walker, I.e. p. 149 (1869). 

 Ischnoptera intnduosa, Tepper, Tr. R. Soc. S. Austral. 



xvii, p. 55 (1893). 

 Fseudo2Ja7ichlora pttnctosa, Kirby, Syn. Cat. Orth. i, 



p. 189 (1904). 



$. Australia. 



Head castaneoiis, darkest on the frons which is very concave ; 

 ocelli testaceous ; eyes wide apart ; on the vertex a longitudinal 

 carina testaceous in colour ; antenna mutilated, fuscous. Pronotum 

 cucuUate, 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 castaneou-j, six to seven costal veins. Wings 

 hyaline, venation as in 0. granicollis, 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 Perisphseriinae ; the sexual dimorphism debars it from 

 occupying a natural position in the Panchlorinee. 



Sub-fam. COBYDIINM. 



54. Gorydia dasytoides, Wlk. 



Euthyrrapha dasytoides, Walker, 1. c. p. 191 (1868). 

 Gorydia tonldnensis, Kirby, A.M.N.H. (7) xi, 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 G. senea, Br. ; it is a $ collected by Mouhot. 



The genus Gorydia 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. 



