new Species of Blattide. 29; 
This well-marked species somewhat extends the range of 
the genus, hitherto known only from Australia, 
Genus PIRoBLATTA, nov. 
Differs from Chrastoblatta, Sauss. & Zehnt., by the less 
prominent vertex, by the shape of the pronotum, by the 
greater breadth of the tegmina, and by the presence of a 
prominent triangular apical area in the wings. 
Head almost covered by the pronotum; pronotum trape- 
zoidal, anterior margin truncate, sides deflexed, posterior 
margin slightly arcuate ; scutellum exposed; tegmina longer 
than the body, discoidal sectors oblique. Wings with a 
large apical triangle, projecting beyond the anterior part 
of the wing; ulnar vein bifurcate 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 quadrately pro- 
duced, in the female triangularly produced. 
On a re-examination of the species described by me as 
Theganopteryz Bouviert (Trans. Ent. Soc. 1906, p. 236) I 
have come to the conclusion that a new genus must be 
established for this and for the species described below. In 
general appearance both species are very like Theganopteryz, 
but the branching of the ulnar vein of the wings is sufficient 
to place them close to the genus Chrastoblatta, from which, 
however, they may be distinguished by the points enumerated 
above. Both species are testaceous in colour and quite 
unlike the conspicuous Chrastoblatta dimidiata, Sauss. & 
Zehnt., and C. tricolor, Sauss. & Zehnt. The females are 
shorter and a little broader than the males. 
Piroblatta Alluaudi, sp. un. 
3d. Head rufo-castaneous ; maxillary palpi and antenne 
testaceous, the latter longer than the body ; pronotum rufo- 
testaceous, the lateral margins hyaline. 'Tegmina testaceous 
hyaline ; fifteen to sixteen costal veins, eight oblique discoidal 
sectors. Wings hyaline; veins fuscous, marginal field 
flavid; fourteen to fifteen costal veins, their apices very 
slightly incrassated; ulnar vein bifurcated and sending three 
branches to the dividing vein; first axillary vein quadri- 
ramose, triangular apical field large. Legs and cerci rufo- 
testaceous. Abdomen piceous; supra-anal lamina trigonal, 
subgenital lamina semiorbicular; the left style stout and 
curved, the right style minute. 
