Mr. R Shelford's Studies of the Blattidac. 289 



anterior border, base and a short stripe in the middle reddish- 

 brown ; femora with inner side pale testaceous, remainder reddish ; 

 tibiae and tarsi reddish-piceoiis ; arolia large. Abdomen ventrally 

 pale yellowish, each, segment with a narrow dark basal band extend- 

 ing to lateral margin. Cerci as long as lamina, slender, pale yellow, 

 terminating in a short spine. 



"Total length 35 mm. ; pronotnm 9 mm. x 19 mm." 



Central Australia. 



Genus 4. Leptozos'J'ERIA, Tepp. 

 Leptozostcria, Tepper, Tr. R. Soc. S. Australia, xvii, p. 96 

 (1893). 



Characters. "Body very flat and thin, elongate. Integument 

 soft. Supra-anal lamina of male triangular, terminating in an acute 

 apical spine. Colour jiale witli dark bands." 



The only specie.s of this genus which I have seen is 

 L. sccunda, Tepp., and that is undoubtedly conspecific 

 with Cvtilia trianf/ulata, Br. (q. v.). The only important 

 character in Tepper's generic diagnosis is the form of the 

 male supra-anal lamina, and as there are many objections 

 to founding new genera on male secondary sexual characters 

 alone, I expect that it will eventually be necessary to sink 

 LeiJtozosteria as a synonym of Platyzosteria or of Cutilia. 



1. L. jprima, Tepp. 



Leftozosteria prima, Tepper, t. c, p. 96 (1893). 



Central Australia, Cordilho Downs (Adelaide Mus., 

 type). 



Genus 5. Cutilta, Stal. 



Gidilia, Stal, Oefv. Vet. Akad. Forh., xxxiv (10), p. 36 

 (1877). 



Characters. Closely allied to Platy::osteria, Br., but the posterior 

 metatarsus long and biseriately spined beneath, its pulvillus apical ; 

 remaining tarsal joints unarmed beneath, their pulvilli occupying 

 tlie entire joints. Tegminal rudiments present. In all but one 

 species the posterior angles of the distal abdominal tergites strongly 

 produced backwards. Supra-anal lamina ( (f ) (piadrate. 



Type of the genus — 0. nitida, Br. 



Stiil founded the genus on C. tartarea, Stal, which is 

 synonymous with C. nitida, Br. The genus is a link 

 TRANS. ENT. SOC. LOND. 1909. — PART II. (MAY) U 



