— 30 — 



the abdomen. Mediastinal vein of tegmina laminate beneath. Supra- 

 anal lamina (cT) bilobed. Femora si)arsely armed. Tarsal arolia very 

 small. 



Tribonoidea seydi, sp. n. 



O^. Dark castaneous. Antennae rather short, first joint elongate. 

 Eyes rather dose together. Face and mouth i)arts testaceous. Pronotum 

 reticulate-])unctate, a pair of oblique imi)ressions and a pair of smooth 

 spaces delining a central area beneath which lies the head. Anteriorly 

 the pronotum extends considerably beyond the head; near the posterior 

 margin there' is a short transverse carina and in the neighbourhood of 

 this the pronotum is transversely striate; a median carina. Tegmina 

 with mediastinal and anal fields reticulate, costals and discoidal sectors 

 very ramose. Wings with mediastinal vein very long and irregularly 

 ramose, costals irregular, ulnar vein multiramose. Supra-anal lamina 

 bilobed exceeding the sub-genital lamina: styles minute. Cerci very 

 short. Abdomen beneath and legs testaceous. Posterior margins of 

 all the femora beneath unarmed; front femora with 3 — 4 sj^ines, mid 

 femora with 2 spines, hind femora with 3 spines, on the anterior margin 



beneath. Formula of apical si)ines — , , - , genicular spines minute, 

 1 I 1 ' ' 



none on front femora. Posterior metatarsus exceeding the remaining 



joints in length; pulvilli moderate, spincd. 



Total length 30 mm; length of body 21,2 mm: length of tegmina 

 25 mm; pronotum 6,2 mm X 9,6 mm. 



Oxapampa, Peru (coll. K. Seyd, 5. V. 07). One example. 



The systematic position of this genus is somewliat uncertain. Super- 

 ficially the insect closely resembles species of the genera Tribonidium 

 and Zetobora but the tarsal structure excludes it from the sub-family 

 Panchlorinae. The presence of tarsal arolia also excludes it from 

 the Blaberinae with which sub-family it exhibits somes affinities — 

 e. g. the sparse armature of the femora. I have therefore no option 

 but to place it provisionally in the Epilamprinae. 



Stibfani. Blattinae. 

 Genus Polyzosteria, Burm. 

 Polyzosteria limbata, IJurm. 



1 (f, Austi'alia (coll. Od er nheimer). 



