36 SJÖSTEDTS KILIMANDJARO-MERU EXPEDITION. 17: 2. 



Gen. Periplaneta Burm. 



No examples of this cosmopolitan genus occur in Dr. Sjöstedt's collection but 

 two species have been previously recorded from Eastern Africa, viz: P. americcma L. 

 (von der Decken) and P. airicoUis Sauss. (Voeltzkow). 



Gen. Deropeltis Burm. 



Deropeltis melaiiophila Wlk. 



Ischnoptera mdanophila Walker, Cat. Blatt. Brit. Mus. Suppl., p. 146, 1869. 



Deropeltis madecassa de Saussüee, Soc. Ent. VI, p. 17 (1891); de S.-vussure and Zehntner 



Grandidier's Hist. de Madagascar, Orth. I, p. 77, pl. 3, ff. 28, 29 (1895). 



Lower Meru; Meru rain-forest 3,000 m. (Oct.— Dec). Usamhara: Tanga; 4 

 ,Si, 2 ?? larvae. 



Also recorded from Madagascar, Zanzibar and East Africa. 



Deropeltis integerrima Br. 



Deropeltis integerrima Brunner, Nouv. Syst. des Blatt, p. 245 (1865). 

 Lower Meru: Ngare na nyuki (November — January); 2 ^i, 6 ??. 

 Previously recorded from Zanzibar; there is a specimen in tlie Paris Museum 

 from Mombasa. 



Deropeltis autraiiiaua Saüss. 



Deropeltis auiraniana Saussüre, Ann. Mus. Civ. Gen. XXXV, p. 78 (1895). 



A long series (96 specimens) from Lower Meru, the steppe country and acacia 

 forest (Sept. to Dec.) and Kilimandjaro: Kibonoto 1,000 — 1,300 metres. Abundant 

 under stones. 



The species is very variable in size in both sexes and the smaller species are 

 less nitid than the larger. There are specimens in the Hope Museum, Oxford from 

 Nairobi, British East Africa and the species was recorded by de Saussure from 

 Gallaland and West Africa; it is very close to D. wahlbergi Stäl from S. Africa 

 and may eventually prove to be identical with it. The determination of the species of 

 the genus Deropeltis is attended with considerable difficult}^ as the number of forms 

 is considerable and a good proportion have been described from one sex alone. The 

 fojlowing tables will perhaps render more easy the tedious task of hunting through 

 literature, whenever one of the more obscure species of the genus has to be identified. 



Males. 



(32) 1. Fuscous or piceous species. 



(13) 2. Head and legs or legs alone different in colour 



to rest of body. 

 (8) 3. Head and legs rufous or castaneous. 



