114 A TOUR AMONG THE ISLANDS 



evening ; looking eastwards across Yempata and Bus'ri 

 one saw distant Buvuma, lying in the mouth of the gulf 

 which gradually narrows down to the origin of the Nile at 

 Jinja (see map) ; to the west, Damba lay long and low on 

 the horizon, flooded with golden light from a lovely sunset. 



The part of Wema that was investigated proved most 

 interesting ; Glossina was extremely abundant, averaging 

 55 per boy-hour, and at one spot the catch averaged 101" 5 

 per boy-hour ; one boy caught 78 in half an hour ! 



Monkeys were seen for the first time since we left Kome, 

 and I was struck by the abundance of a black and white 

 crow which flew about in flocks like rooks. Wema proved 

 to be very markedly a "spider island," and as regards 

 butterflies it was richer than any of the other islands 

 investigated ; I think that it has probably as many 

 species as the much larger Damba or Bugalla, and 

 several Nymphalines were seen there which had not 

 been met with on the larger isles. 



Of Papilioninae, P. dardanus and P. ugandae, with several 

 other forest species, were noted ; also, P. leoyiidas and 

 P. policenes were very common. Of Pierinae, several 

 species of Terias and one Teracola were noted. The 

 following species of Nymphalines were especially noted : 

 Pseudacraea boisduvalli, lucretia, and eurytus forms hobleyi 

 and tirikensis, six species of Neptis, together with Nepti- 

 dopsis, nine of Charaxes ; Salamis was fairly abundant, 

 while no Euralia was seen. Danaines were poorly repre- 

 sented by a few D. chrysippus, Amauris echeria, A. niavius 

 and yl, psyttalea. Only a few specimens of each were seen. 

 Acraeines were surprisingly scarce ; very few individuals, 

 belonging to nine species, were found ; noteworthy were 

 Planema alcinoe, macarisfa and poggei. The Hesperidae 

 included the peacock blue Rhopalocampta chalybe ; 

 among the Lycaenidae was an extremely beautiful large 

 blue species, with long tails of snowy white hue {Zeltus 

 antif annus). 



