Mr. R. Shelford's Studies of the Blattidae. 317 



"West Africa" (British Mus., type); Togo (Berlin 

 Mus.). 



The species is to be distinguished by the broad testa- 

 ceous margin running all round the pronotum and by 

 the apical three-fifths of the tegmina being hyaline, the 

 castaneous colouring of the tegmina occupies the basal 

 two-fifths, and is produced along the marginal field towards 

 the apex. 



4. G. castanea, sp. n. 



(^. Differs from scutellkjeva and costalis by the greater distance 

 apart of the eyes on the vertex of the liead. Head rufo-testaceons, 

 vertex between the eyes, which are nearly 1 mm. apart, castaneons. 

 Pronotum with disc castaneous, margins broadly flavo-testaceous, at 

 tlie postero-lateral angles the castaneous almost reaches the outer 

 border of the pronotum. Tegmina dark castaneous, flavo-marginate 

 almost to their apex. Wings suffused with castaneous. Abdomen 

 and legs as in the preceding species. 



Total length, 16 mm. ; length of body 14*8 mm. ; length of tegmina 

 14 mm. ; pronotum 5 mm. x 6 mm. 



Togo, Bismarckburg (Z. ConrcuU), (Berlin Mus.). 



5. Cr. gloriosa, Still. 



Blatta gloriosa, Stfd, Oefv, Vet.-Akad. Forh., xii, 



p. 351 (1856). 

 Panchlora africana, Saussure, Rev. Zool. (2), xvi, 



p. 342 (1864). 

 Gyna africana, Saussure, Mem. Soc. Sci. Phys. Nat. 



'Geneve, XX, p. 275 (1860). 

 Gyna, pomposa, Brunner von Wattenwyl, Nouv. Syst. 

 'Blatt., p. 269 (1865). 



A common species ranging from Sierra Leone to the 

 Congo. 



6. G.jocosa, Shelf. 



Gyna jocosa, Shelford, Mem. Soc. ent. Belg,, xv, p. 234 

 (1908). 



Congo Free State (Brussels Mus., type ; British Mus,). 



7. G. laticosta, Walk. 



Panclilora laticosta. Walker, Cat. Blatt. Brit. Mus., p. 

 33 (1868). 



