CICADIDAE. 



61 



time, and almost identical in other respects, but with the base of cell Eg basad 

 of cell R2 in the one, and distad in the other. The apical venation in Cicadidae 

 is not very generally constant in details, although in the 73 Samoan examples 

 this particular character holds. Unfortunately the type of neither species is 

 available for study. The male external genitalia show certain variations, both 

 in the aedeagus and in the copulatory claspers of the Xth segment, but at least 

 in the two males from Burn already mentioned (figs. 6, 7, 12, 13) these are not 



Text-figs. 4-9. — Pig. 4, Baeturia conviva Stal, Ceram, aedeagus, lateral view ; fig. 5, B. ex- 

 hausta Guer., type of Dunduhia parabola Walk., aedeagus, lateral view ; fig. 6, B. exltausta 

 Guer., (example from W. Buru with venation oiB. conviva), aedeagus, lateral view ; fig. 7, 

 B. exhausta Guer., (example from W. Buru with, normal venation), aedeagus, lateral view ; 

 fig. 8, B. exhausta Guer., Samoan example, aedeagus, lateral view ; fig. 9, B. exhausta Guer., 

 (another specimen from Samoa), aedeagus, lateral view. 



correlated with the venational difterences. On characters presented by the 

 genitalia these two males belong to B. exhausta. Figs. 4 and 10 show the corre- 

 sponding parts in what we must provisionally regard as a typical B. conviva, 

 to be contrasted with figs. 5 and 11, drawn from Walker's type of Dundubia 

 parabola, which, with Distant, I consider as synonymous with B. exhausta. 

 The other figs. (8, 9, 14-17) illustrate the variation among the Samoan material. 

 If the specimen of B. conviva dissected by me is really typical, then this species 

 may perhaps be regarded as distinct owing to the longer aedeagus and accom- 



