83 



in R. Svenska Vetanskap Academicus Handl., Stockholm, 

 Bihang II., No. 13). 



Habitat. — Australia. 



PoLYZOSTERiA Sedilloti, JBorm. (Faune Orth. d'lles Hawai). 

 " YARIOLOSA, Borm. (ibid). 



Habitat. — New Caledonia. 



The last two species were published by A. de Bormans in the 

 '^ Annali del 3Iuseo Civico di Storia Naturali de. Genova, vol. 

 XVIII., 1883, but I have not seen the descriptions. 



Platyzosteria, Brunner (Syst., 204). 

 Body elongate oval, fiat, rather thick ; integument more or less 

 leathery (not rigid) during life. Supra-anal lamina of male 

 quadrate or subquadrate, angular or rounded, truncate or con- 

 cave behind ; of female subtriangular or rotundate, emarginate, 

 colour mostly black or brown. Habit more or less nocturnal. 



Platyzosteria melanaria, Erichson (Wiegm. Arch., VIII., 

 247; Br., Syst., 210). 



" Shiningly black. Antennae and tarsi blackish, coxae with 

 red margins posteriorly. Supra-anal lamina in both sexes tri- 

 angularly rotundate, emarginate, serrate, and ciliate. 



Male. Female. 



Length of body ... ... 29 mm. 33 mm. 



Length of pronotum ... 8 " 8-5 " 



Width of pronotum ... 11-5 " 12 



Habitat. — New South Wales ; Tasmania." 



The only species before me which fairly agrees with the above 

 (scanty) description, and which I therefore refer to it, exhibits 

 the following differences or additional characters. Lateral mar- 

 gins of thoracic segments, also the legs, more or less deeply 

 brown, pulvilli whitish. Antennas long, slender, pale brownish 

 or rarely blackish, base surrounded by a circular white area. 

 Abdominal segments with the hind angles acutely produced, 

 lateral margin of the last two finely serrated. Supra-anal lamina 

 of male broad, rotundate, slightly emarginate, scarcely serrate ; 

 of female narrow, longer than wide, deeply emarginate, and the 

 lateral margin conspicuously serrate. Cerci of male lanceolate, a 

 little longer than the lamina, black, apex pale ; of female much 

 shorter. Subgenital lamina of male quadrate, styles prominent, 

 slender, acute. 



Male. Female. 



Length of body ... 32-38 mm. 29-38 mm. 



Length of pronotum 7- 8 " 7- 8 " 



Width of pronotum... 12-15 " 12-15 " 



