Abstract
The phylogeny of the genus Boettcherisca Rohdendorf was investigated by numerical techniques. The phenetic and phyletic dendrograms were obtained by mean character difference (MCD) and Russell and Rao's coefficient (SRR) proximity analyses and unweighted pair-group (UPGA) cluster analysis, and then related to the classification of the species group and the geographical distribution of the group. Two monophyletic and one paraphyletic groups were recognized: peregrina-group, septentrionalis-group and karnyi-group, respectively. A biological evolution was postulated commencing with a hypothetical ancestor having occurred in Sundaland and involving two lines of specialization, the peregrina-group found in and around Sundaland and the septentrionalis-group in Far East, Walacea and Papualand. On the basis of the cladogram and the present geographical distribution, a Sundaland origin was postulated for the genus.
