DWANGA MKURU AND MTO 105 



backed by thin and poor looking forest trees, swept by 

 the prevailing south-east winds. Many of them were 

 covered with spiders' webs, for this island is markedly a 

 " spider island " ; as on Sanga, this is correlated with 

 great scarcity of insectivorous birds and abundance of 

 Mantidae. 



Butterflies were extremely abundant : the beautiful 

 green, pinkly iridescent Salamis was more numerous 

 than at any other locality visited, four might be 

 seen at once. Of Acraeines, Planema poggei was of 

 interest, and other Nymphalines besides Salamis were 

 Euralia duhia and Pseudacraea hicretia, which latter 

 Fiske, until it had been caught, thought must be a 

 Neptis from its flight. I had often noticed that its 

 flight was much more like that of a Neptis than the 

 Danaine (Amauris), which it somewhat resembles in 

 pattern. 



Glossina was completely absent from Dwanga Mkuru. 



DwANGA Mto, lying alongside the last named, was 

 visited on February 9th. It is more or less covered by 

 jungle, but there are some open patches, and it does not 

 rise so high as its larger neighbour. The shores are mostly 

 of pebble or rock, with much fern and Salvia, and the 

 usual common bushes. 



A species of bush was seen by the water which had not 

 been met with before ; it had very large heart shaped 

 leaves and spikes of inconspicuous flowers : the natives 

 called it " Omukwakula." Other features of the flora 

 were a single specimen of the large " Ekibo " palm and a 

 small patch of elephant grass (" Ekisagazi "), which is 

 very unusual on the small islands. 



Birds were not so noticeably scarce as on Dwanga 

 Mkuru, for sunbirds and bulbuls were plentiful and the 

 " Kunguvu " flycatcher was there. 



Being markedly a " spider island," Dwanga Mto had 

 abundant Mantidae; the large grasshopper called "E'jansi" 



