new Species of Blattidw. 29 



This well-marked species somewhat extends the range of 

 the genus, hitlieito known only IVoiu Australia. 



Genus Piiioblatta, nov. 



Differs from Chrnstuhlattu, Sauss. & Zchnt., by the less 

 proniincMit vertex, hy the sh,ii)e of the [jronotuni, l)y the 

 greater breadth of the tejrniina, and hy the presence of a 

 proiuinent triangular apical area in the wings. 



Head almost covered by the pronotuin ; pronotum trape- 

 zoidal, anterior margin truncate, sides dcflexcd, ])osterior 

 margin j^lightly areuate ; scutellum exposed ; tegmina longer 

 than the hody, diseoidal sectors ol)li(]ne. ^Vings with a 

 large apical triangle, i)rojecting hryond the anterior part 

 of the wing; ulnar vein hifurcate and sending also two to 

 three branches to the dividing vein. Front femora unarmed 

 beneath, mid and hind femora very sparsely armed on both 

 borders beneath ; genicular spines present on all the femora. 

 Supra-anal lamina in the male somewhat quadratcly pro- 

 duced, in the female triangularly produced. 



On a re-examination of the species described by me as 

 Tlte(janopteryx Bouvieri (Trans. Ent. Soc. 190G, p. 230) I 

 have come to the conclusion that a new genus must be 

 established for tliis and for the species described below. In 

 general appearance both species are very like Thegunoptenjx, 

 but the branching of the ulnar vein of the wings is sullieient 

 to ])lacc them close to the genus ClirastohlatUi, from which, 

 however, they may be distinguished by the points enumerated 

 above. Both species are testaceous in colour and quite 

 unlike the conspicuous Clirastoblatta dimidiata, Sauss. & 

 Zchnt., and C. tricolor, Sauss. & Zehnt. The females are 

 shorter and a little broader than the males. 



PiroLlatta Alluaudi, sp. n. 



cJ . Head rufo-castaneous ; maxillary palpi and antennae 

 testaceous, the latter longer than the body ; pronotum rnfo- 

 tcstaccous, the lateral margins hyaline. Tegmina testaceous 

 liyaliue ; lifteen to sixteen costal veins, eight oblique diseoidal 

 sectors. Wings hyaline; veins fuscous, nnuginal field 

 flavid ; fourteen to fifteen costal veins, their ajjiccs very 

 slightly incrassated; ulnar vein bifurcated and sending three 

 branches to the dividing vein; first axillary vein quadii- 

 ramosc, triangidar ajjical field large. Legs and ccrci rufo- 

 tcstaceons. Abdomen piccous ; supra-anal lamina trigonal, 

 subg nital lamina semiorbicular ; the left style stout and 

 curved, the right style minute. 



