294 Mr. R. Shelford's Studies of the Blattidae. 



3. Z. pallida, Shelf. (Plate IX, figs. 28« and 28&.) 



Zonioploca pallida, Shelford, [in] Fauna Siidwest 

 Austral. ii,Licf. 9, Blattidae, p. 138, PI. XIII, fig. 7 

 (1909). 



This species varies considerably in size, in the extent of 

 the granulation of the dorsal surface and some examples 

 arc paler than others. 



West Australia, various localities (Oxford Mus., 

 types ; Hamburg Mus.). 



4. Z. casta, Tepp. 



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

 xvii, p. 92 (1893). 



Known t(j me only from the description. 



Central Australia (Adelaide Mus., type). 



5. Z. rohusta sp. n. 



5. Testaceous, iiitid. Headcastaneous, moutli-parts and antennae 

 testaceous. Dorsum with large shallow punclvires, thoracic tergites 

 rugose laterally and with a lateral castaneous vitta, a castaneous spot 

 at the base of the nieso- and metanotum in the middle line. The 

 punctures on the abdominal tergites rufo-castaneous ; margins of 6th 

 and 7th 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 nun. 



Central Australia (v. Lconhardi), (Senckenberg 

 Mus., type). 



Genus 7. Cosmozosteria, Stal. 

 Cosmozostcria, Stiil, Bih. Svensk. Vet. Akad. ii (13), 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 9th 

 abdominal tergite lobiform. Dorsal surface of abdomen scabrous. 

 Supra-anal and sub-genital laminoe ( $ ) quadrate. Cerci short. 

 Posterior metatarsus very short, unarmed beneath, its pulvillus 

 occupying the greater part of the joint. 



