SHELFORD, BLATTODEA. ■*» 



Ceratiuoptera bimaculata sp. n. 



?. Testaceous, broad, short. Frons Avith a castaneous band; apical Joint of 

 maxillary palpi and antennae except at base, fuscous. Vertex of head almost covered 

 by the pronotum. Pronotum large, trapezoidal, lateral margins broadly, posterior 

 margin narrowly hyaline, posterior border slightly obtusely angled, scutellum not ex- 

 posed ; two obsolescent castaneous vittae on the disc. Tegmina longer than the body, 

 testaceo-hyahne, membranous, 10 costal veins, ulnar, anal and axillary veins obsoles- 

 cent. Wings abbreviated, extending to the 2°^ abdominal tergite. Abdomen above 

 castaneous, laterally margined with testaceous; supra-anal lamina testaceous, small, 

 triangulär. Abdomen beneath testaceous, with lateral fuscous maculae obsolescent 

 posteriorly; sub-genital lamina very large, semiorbicular. Legs testaceous, front 

 femora with a complete row of long spines on the anterior margin beneath. 



Total length 9,i mm.; length of body 8 mm.; length of tegmina 6,i mm.; pro- 

 notum 3 mm. X 4 mm. 



Usamhara: Mombo (June), 2 ??. 



The broad abdomen and the obsolescent venation of the membranous tegmina 

 are the characteristic features of this species. Obsolescent venation is usually asso- 

 ciated with a corneous and more or less opaque texture of the tegmina, its dis- 

 appearance from delicate membranous tegmina is most unusual. 



Ceratiuoptera castanea sp. n. 



c^. Allied to C. ahhrevkUa Sauss. and C. madecassa Sauss. but differing from 

 the former by its larger size and by the different shape of the sub-genital lamina and 

 from the latter by the shorter tegmina. 



Dark castaneous. Antennae fuscous, month parts testaceous. Pronotum trape- 

 zoidal, nearly covering vertex of head lateral margins rufo-castaneous, its posterior 

 margin slightly obtusely angled. Tegmina lanceolate, corneous, extending to the 4*'' 

 abdominal tergite, 10 costals, anal vein impressed, remainder of venation obscured. 

 Wings much reduced, extending to middle of 2"^ abdominal tergite. Supra-anal 

 lamina transverse, slightly produced. Sub-genital lamina broad, transverse, slightly 

 produced, its posterior angles rounded, with two short styles. Legs rufo-testaceous. 



Length of body 12 mm.; length of tegmina 7 mm.; pronotum 4 mm. X 5 mm. 



Usamhara: Mombo (June), 1 cf. 



Cerathioptera sjöstedti sp. n. 



(PL 3, tigs. 16—17.) 

 J". Allied to C. fcrrmjinea Sciiultii but with longer tegmina. Rufo-testaceous. 

 Head castaneous, antennae testaceous at base, remainder infuscated; vertex of head 

 not nearly covered by pronotum. Pronotum transversely elliptical with lateral margins 

 hyaline, posterior border truncate, exposing the scutellum. Tegmina extending to 

 penultimate segment, membranous; marginal field very broad, 12 costal veins, anterior 



