i5 FAM. BLATTID^ 



abdominal tergite in 9 tumid in middle, posterior margin bisinuate, in (^ posterior margin produced 

 in the middle. Supra-anal lamina of 9 transverse. Sub-genital lamina of (^ small, provided with two 

 styles. Femora compressed, front pair fimbriated beneath, posterior pair shortly spinose towards apex. 

 Tibiae very spinose. Tarsi elongate, arolium present between tarsal claws. 



Geographical distribution of species. — Brazil. 

 I. P. testacea, Bolivar, Mitt. Schweiz. Ent. Ges. Vol. 2, p. i3g (igoi) (Rio Grande do Sul, in ant's nests). 



Oxford, May iS"- 1908. 



