Mr. R. Shelford on the Studies of the Blattidae. 647 



Type B. Tarsi long, posterior metatarsi longer than the succeeding 

 joints. 



Type of the genus — T. lucida, Br. 

 Distribution of the species— West Africa, Congo 

 region and N.E. Rhodesia. 



KEY TO THE SPECIES. 

 1. Unicolorous, testaceous or castaneous. 

 2. Eyes close together on vertex of head 



(almost touching in ^ ) T. fantastica, Shelf. 



2'. 'Eyes not close together on vertex of 

 head. 

 3. Species barely exceeding 10 mm. in 



length T. camerunensis, sp. n. 



3'. Species much exceeding 10 mm. in 

 length. 



4. Uniform castaneous T. nitida, Borg. 



4'. Uniform testaceous T. obscura, Shelf. ( <J ). 



1'. Not unicolorous. 



2. Pronotum without darker vittae. 



3. Pronotum unicolorous T. obscura, Shelf. ( $ ). 



3'. Pronotum not unicolorous but 



piceous, marginal with hyaline . T. gambiensis, Shelf. 

 2'. Pronotum with 2 castaneous vittae or 

 blotches. 

 3. Pronotum with 2 castaneous blotches 



at base T. affims, sp. n. 



3'. Pronotum with 2 castaneous vittae. 



4. Tegmina uniform testaceous . . T. rhodesiae, sp. n. 

 4'. Tegmina not uniform testaceous. 

 5. Apex of anal field of tegmina 

 hyaline ; sub-genital lamina 

 ( <$ ) scarcely asymmetrical . T. notata, sp. n. 

 5'. Anal field concolorous ; sub- 

 genital lamina (<$) very 

 asymmetrical T. lucida, Br. 



Theganopteryx fcmtastica, Shelf. (Plate LXXIX, fig. 1.) 

 Theganoptenjx fantastica, Shelford, Mem. Soc. espan. 

 Hist. Nat. i, No. 27, p. 476 (1909). 



£ . Pale rlavo-testaceous. Head and antennae unicolorous ; eyes 

 piceous, almost touching on vertex of head. Pronotum unicolorous. 



