360 Drs. Dixey and Longstaff’s Observations 
wit, Tarucus telicanus, Lang, f; Everes cissus, Godt., and 
Catochrysops malathana, Boisd. (= asopus, Hopff.), 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, Fabr., a male 
and two females; Cegenes zetterstedti, Wallgr. (= hotten- 
tota, Latr.), 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 Laoris fatuellus, Hoptf. 
It is curious that two Humming-bird Moths of different 
species were taken close together, and within a minute or 
two, Macroglossa trochilus, Hiibn., and Aellopus commassie, 
Walk. It is also curious that no smaller moths were 
brought from the Rain 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 dubia, 
Bigot, was to be got in abundance by sweeping in the drier 
parts of the Forest, the other Mr. G. H. Verrall thinks 
may be ichnewmonca, Linneeus’ 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 thinks may be 
a local race of Syrphus balteatus, Deg., and four Sepedon sp. 
A species of Plecia, with a reddish thorax, was flying 
lazily about the Hugenia trees in large numbers, with its 
legs trailing bebind just as Libio 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 f and a 9, of an Asilid that is perhaps 
Promachus riippelli, Liv., but may be new, unfortunately 
taken without prey; a Syrphid, Helophilus sp., near to but 
not identical with africanus, Verrall; lastly, something 
extremely like Musca domestica, Linn., was taken! 
As might have been expected Dragon-flies were fairly 
numerous, prominent amongst them the large and hand- 
some Pseudomacromia torrida, Kirby, flying in the open 
swampy space between the belt of Hugenia trees and the 
edge of the chasm; other species were Phyllomacromia 
trifasciata, Ramb., and (by sweeping) the Agrionid, 
Brachybasis rhomboidalis, Beauv., which appears to have 
a wide distribution in Africa. 
