168 W. Doherty — The Butterflies of Swnba and Samhawa, &c. [No. 2, 



Sumba, since a Doleschallia and a Gharaxes iDrobably of Moluccan type 

 escaped me, and of a Hypolimnas apparantly near H. pandarus I made 

 no description, and tlie specimens are lost. 



A few Papuan or Timorese forms occurring in Sumba do not 

 extend to Sambawa, such as Badena oherthurii, and the above-mentioned 

 Doleschallia and Bypolimnas, In one or two cases a species occurring 

 with little change from Java to Timoi" has a wholly different represen-. 

 tative in Sumba, as in the case of Papilio maremba. Ten Sumbanese 

 forms are represented in Sambawa by other allied species, namely, six 

 Banaidoi, three Pieridce and- a Papilio. Nine species of Danais occur in 

 Sumba and nine in Sambawa, and of these six are the same, and three 

 different. Ten species of JEuploea (of nine different groups) were taken 

 in Sambawa, and only six in Sumba (perhaps on account of the 

 continual rain in the interior), of these only one, a large Salpinx, was 

 common to the two islands. The dominant PJuplcea of Sumba was 

 apparently PJ. lewa, that of Sambawa seemed to be the Javanese E, 

 (Belinda) eleusina, and both have their mimics. Trepsichrois, of which 

 a species is peculiar to each island, appears as a mimic, and rare, 

 whereas further west it is usually a dominant genus. 



Information regarding the seasonal forms of the Safyridre, will be 

 found under the head of that family. It will be seen that in these 

 islands the non-ocellate brood appears when the ocellate brood appears 

 in India, as might be expected, the seasons there being similarly 

 reversed. In Sambawa I reared both forms of Melanitis leda from the 

 wet-season one, by keej)ing a wet sponge along with the chrysalids in 

 one box, whence only the ocellate brood was obtained. 



My discovery of the dimorphism of these insects, made in 1882-3, 

 and my theory regarding its cause, have now received confirmation 

 from all sides, and may be regarded as proven. 



My collecting in Sambawa was in the eastern part of the island in 

 the sultanate of Bima or Mbojo, and was unfortunate, owing to the 

 heavy and unseasonable rains. Owing to the assistance of Mijnheer 

 A. C. de Heer, Gontroleur of Bima, for whose kindness I offer my best 

 thanks, I was enabled to visit the mountains west of Bima, the Sulfcan 

 sending his brothers to arrange matters for me. These mountains, 

 which are of some height — two of the peaks, Haruhasa and Ndindi ex- 

 ceeding five thousand feet in elevation — are in the district of Bolo, the 

 capital of which is Sila, and are inhabited by a timid race called the 

 Do Donggo Bolo to distinguish them from the Do Donggo Kai near 

 Prado. The higher parts of the mountains have a very wet climate, and 

 are partly meadow and partly forest. The latter is exceedingly rich 

 and luxuriant, resembling that of Sumatra or Borneo, but is of no great 

 height on account of the violence of the wind. 



