VICTOKIA FALLS 
229 
Papilio leonidas flew slowly about the Eugenia, , with the manner 
of a Danaid, but the model, if such there be, was not seen; 1 four 
specimens were secured. 
One might naturally have expected to find many of the pre¬ 
eminently thirsty Blues in the Bain Forest. Accordingly, Zizera 
lysimon , met with occasionally in all the Zambesi hunting grounds, 
was really common in the Bain Forest only, probably the other 
places were too dry for it. But of other Lycaenids single examples 
only were taken, to wit, Tarucus telicanus , Everes cissus , and Cato - 
chrysops malathana , the last-named sitting head downwards. 
Somewhat unexpectedly we found Skippers commoner within the 
range of the spray than outside, the following presenting themselves : 
Parnara mathias, a male and two females; Gegenes letterstedti, 
three; Parosmodes morantii, Trim., one, a species represented in 
the National Collection by a single specimen from Mashonaland 
presented by Mr. G-. A. K. Marshall; and one Parnara fatuellus. 
It is curious that two Humming-bird Moths of different species 
were taken close together, and within a minute or two, Macroglossa 
troclnilus , Hubn., and Aellopus commassiae, Walk. It is also curious 
that no smaller moths were brought from the Bain Forest. On the 
other hand Diptera were numerous; of these the most striking were 
two species of the strange stalk-eyed genus Diopsis ; one, near to 
dnbia, Bigot, was to be got in abundance by sweeping in the drier 
parts of the Forest, the other Mr. G. H. Yerrall 2 thought might 
be ichneumonea , Linnaeus’ long-lost type of the genus. Of another 
fly, distinguished by its apple-green abdomen, Odontomyia sp., several 
were obtained by sweeping in moister places. The same method 
produced other flies, among them a specimen which Mr. Verrall 
thought might be a local race of Syrphus balteatus , De Geer, also four 
Sepedon sp. 
A species of Plecia , with a reddish thorax, was flying lazily about 
the Eugenia trees in large numbers, with its legs trailing behind just 
as Bibio marci, Linn., does in English woods in April. Then there 
was a pretty black and white Tabanus sp.; a pair in cop. of another 
Plecia ; two specimens, a £ and a $, of an Asilid that is perhaps Pro- 
machus rilppelli, Liv., but may be new, unfortunately it was taken 
1 Note by Dr. Dixey: In North-East Rhodesia, on the Chambezi, some 700 miles 
away, it flies with and appears to mimic Tirumala petiverana, Dbl. & H. Com¬ 
pare Trimen, “ Sonth-African Butterflies,” vol. iii., 1889, p. 213. See, however, 
Chapter X., § 7, infra, for Mr. G. A. K. Marshall’s remarks on the flight of this 
Papilio. 
2 This genial entomologist died while this was in the press; a great loss to 
science, a great personal loss to all who knew him. 
