•^HELFORD, BLATTODEA. 



42. Pscuilotleropellis fulvornata 



43- Psei(dodfropeJtis pptrophila 



44. Periplatxda anurlrana -¥- 



4o. Periplanetn atrUolli.'^ . . - ^ 



40. Deropcltis melanophila . ■ . ¥r 



47. Deropellis intef/enimn . • • i^ 



48. Deropeltis autrnniana . -X- , . -Sf 



49. Panchlora camenmensis 



50. Naiii)hoela cineren -X- 



51. (Jyna vetiila 



52. Phenaciama pcllala 



53. Anacompsa cuntllata 



54. Spkerophila iermitium 



\ 55. Eulh]jrrhapha paci/icri -X- 



56. Oxyhaloa deiisia 



57. Oxyhaloa ferreti . * 



58. Oxyhaloa variabilis 



59. Gynopeltie cryptospila . . . * 



(iO Derocalyinnia porcellio 



1)1. Derocalymma laynpyroides 



62. Cyrtotria capucina 



63 Cyrtotria tuberculata 



64. Parafphneria (?) marmnrala .... 



The above table includes 64 species' and a glance at their distribution shows 

 as might have been safely predicted that the closest affinity of this Blattid fauna is 

 found in East Africa between the 5^'^ degree of latitude and the Zambezi River; 20 

 of the species are common to these two areas and I have little doubt that the 

 number would be increased if our knowledge of the cockroaches of the latter area 

 was greater than it is. 7 of the species are cosmopolitan or nearh^ so and consequently 

 afford no evidence worth taking into consideration. The relationship with the Abys- 

 sinian fauna is rather surprisingly remote, but can perhaps be accounted for by the 

 intervention of the xerothermic area of Somaliland and Galjaland between the damp 

 moist regions of Abyssinia and Kilimandjaro ; it is significant that there is a much 

 closer relationship between the faunas of these two regions in the case of insects 

 capable of sustained flight such as the Lepidoptera Rhopalocera. Only 4 of the 

 species occur also in Africa south of the Zambesi and the entire absence from the 

 Kilimandjaro region of certain highly characteristic South African genera is in sharp 

 contrast to the fact that all the Abyssinian genera save two" are represented in the 

 Kilimandjaro region. The connection with the West African and Mascarene faunas 



' All iuiniature and umleteniiiiied species iif Lcucophacu i.s omitted. 



- One of these two is ParaJohoptfru. a genus barely separable from J.ol/n/i/rra whicii is rejiresonted liy 

 one species in the Kilimandjaro regions. 



