30 



the abdoiuen. Mediastinal vein of teguiina laminate beneatb. Supra- 

 anal laruina (cf) bilobed. Femora sparsely armed. Tarsal arolia very 

 small. 



Tribonoidea seydi, sp. n. 



(f. Dark castaneous. Antennae rather short, first Joint elongate. 

 Eyes rather close togetber. Face and mouth parts testaceous. Pronotum 

 reticulate-punctate, a pair of oblique impressions and a pair of smootb 

 Spaces defining a central area beneath whicb lies tbe head. Anteriorly 

 tbe pronotum extends considerably beyond the head ; near the posterior 

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

 tbis 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 irregulär, ulnar vein multiramose. Supra-anal lamina 

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

 short. Abdomen beneatb and legs testaceous. Posterior margins ot 

 all the femora beneath unarmed; front femora with 3 — 4 spines, mid 

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



beneath. Formula of apical spines — , — , — , genicular spines minute, 



none on front femora. Posterior metatarsus exceeding the remaining 

 joints in length; pulvilli moderate, spined. 



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 (coli. K. Seyd, 5. V. 07). One example. 



The systematic position of tbis genus is somewhat uncertain. Super- 

 ficially the insect closely resembles species of the genera Tribonidium 

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

 P an chlorin ae. The presence of tarsal arolia also excludes it from 

 the Blaberinae with whicb sub-family it exhibits somes aftinities — 

 e. g. the sparse armature of the femora. I hnve therefore no Option 

 but to place it provisionally in the Epilamprinae. 



Subfam. Blattin ae. 

 Genus Polyzosteria, Burm. 

 Polyzosteria limbata, Burm. 



1 (f, Australia (coli. Odernheime r). 



