530 
BIONOMIC NOTES 
a small female D. chrysippus was actually mistaken for A. 
encedon. 
Durban, August, 1905. “Of Belenois thysa , Hopff., we took two 
males; when on the wing they were very like the males of 
Mylothris agathina, Cram., in flight and general aspect. Indeed 
as seen in the net the Belenois so closely mimics the Mylothris 
that one of us, though specially on the look-out, was completely 
deceived, and this even when the two insects were taken the 
same morning” (see above, pp. 193,194). 
Durban, August, 1905. “. . . the curious Geometer Cartaletis 
libyssa, Hopff., of which several were seen, but only one taken. 
It flies rather high, with feeble fluttering action, and when on 
the wing somewhat recalls Danaida. chrysippus ” I do not think 
that in this instance I was actually deceived. 
Kandy, March, 1904. Of the tail-less Pctpilio lankeswara , Moore, f, 
dissimilis, Linn, (the pale form), I took three, but probably saw 
more since it so very closely mimics Tirumala limniace, or a 
large Parantica aglea , as easily to pass for one of those 
insects; it is indeed most easily distinguished from them by its 
habit of fluttering while feeding upon a flower. 
Near Peradeniya, Ceylon, January 29, 1908. I was with that 
experienced and keen-eyed entomologist, Mr. E. E. Green, when 
after several attempts he netted a P. lankeswara , f. dissmilis , 
under the impression that he was catching Tirumala septen- 
trionis, Butl. (see above, p. 364). 
Kandy, March 2, 1908. I myself took a female P. dissimilis which 
I imagined to be Tirumala septentrionis as it flew past. 
Haragama, Ceylon, February 18,1908. Took a female P. lankeswara , 
f. clytia, Linn, (the dark form), believing it to be Crastia asela , 
Moore. This dimorphic mimicry is very remarkable. 
Mortehoe, Devon, July, 1902. The first Aegeria crabroniformis, 
Lewin, that I ever saw alive was at rest on the trunk of a 
black Poplar. Under the idea that it was a hornet I knocked 
it down and put my foot on it before discovering my mistake. 
The thought passed through my mind: “Well, I have been here 
all these years and never saw a Hornet in the district before.” 1 
Kandy, February 21, 1908. A specimen of the Clearwing, Melittia 
chalciformis, Fabr., seen hovering over a flower was first thought 
to be a Bombylius, then a Skipper. It distinctly hummed in 
the net. This instance is quoted to show that the moth, though 
not suggesting a protected insect, certainly deceived the observer. 
1 Longstaff, Entom. Month. Mag., 2nd Ser., vol. xv., 1903, p. 196. 
