2D4 Mr. R. Shelford's Studies of the Blatiidae. 



:;. Z. pallida, Shelf. (Plate IX, figs. 2Ha and 28h.) 



Zonioploca 2^allid((, Sliclford, [in] Fauna Siidwest 

 Austral, ii, Lief. 1), Blattidae, p. ];38, PI. XIII, fig. 7 

 (1909). 



This species varies considerably in size, in the extent of 

 the granulation of the dorsal surface and some exanii^les 

 are paler than others. 



West Australia, various localities (Oxford Mus., 

 types ; Hamburg Mus.). 



4. Z. casta, Tepp. 



Anamesia castii, Tepper, Tr. R. Soc. S. Australia, 

 xvii, p. 92 (1898). 



Known to me only from the description. 



Central Australia (Adelaide Mus., type). 



5. Z. robiista sp. n. 



5. Testaceous, iiitid. Head castaneuus, niuuUi-j)ait.s and antennae 

 LesLaceous. Dorsum with large sliallow punctures, thoracic tergites 

 rugose laterally and witli a lateral castaneous Aitta, a caslaneous spot 

 at the base of the meso- and metanotuiu in the middle line. The 

 punctures on tlie abdominal tergites rufo-castaneous ; margins of 6tli 

 and 7tli tergites very faintly serrate. Supra-anal lamina trigonal, 

 sub-cucullate, apex emarginate. Cerci not exceeding the lamina, 

 slender, flattened. Abdomen beneath impunctate, pale testaceous, 

 penultimate tergite and. valves rufous. Legs rufo-testaceous. 



Length 35 mm. ; pronotum 10 mm. x 16'5 mm. 



Central Australia (v. Lconkardi), (Senckenberg 

 Mus., type). 



Genus 7. Cos.mozosteria, Stal. 



Cosmozosteria, Stal, Bih. Svensk. Vet. Akad. ii (1*>), p. 

 13 (1874). 



Characters. Ocelli present. Tegminal rudiments absent. Ab- 

 domen broader than thorax. Posterior angles of abdominal tergites 

 5-6 not, or scarcely produced, of tergite 7, produced. Angles of 9tli 

 abdominal tergite lobiform. Dorsal surface of abdomen scabrous. 

 Supra-anal and sub-genital laminae ( (^ ) quadrate. Cerci short. 

 Posterior metatarsus very sh(jrl, unarmed beneath, its pulvillus 

 occupying the greater pari of the joint. 



