(Se) 
“Some of the forms of LZ. argia, 2 , are restricted to definite 
regions, and it is natural to ask whether these mimics and 
their models are always to be found in the same locality. To 
a great extent this can be shown to be the case, but a wider 
knowledge than we at present possess of the distribution of 
both sets of forms would be necessary for a complete answer 
to the question. Meanwhile, the facts now at our command 
do not suggest an answer unfavourable to the theory. 
‘¢T have heard it remarked that whereas the form sulphurea 
of L. argia, @, has a well-marked dark margin, the Mylothris 
with which it is here associated has no continuous dark mark- 
ing, except at the apex of the fore-wing. Experience, however, 
leads me to think that although a border of black spots on a 
white or pale-coloured wing—the arrangement so commonly 
seen in Mylothris but obsolescent in this particular form —is 
a conspicuous feature, a uniform dark border (as in Belenois 
severina, Cram., 9) is often unnoticeable during flight; the 
chief effect of sucha border being to diminish the apparent size 
of its possessor, and sometimes (if the internal bounding line 
is irregular) to convey in addition the impression of a worn or 
ragged edge tothe wings. ‘There is reason therefore to suppose 
that the resemblance between these two forms is quite close 
enough to be effective, 
“ Tt may, in conclusion, be remarked that the present case is 
in some respects analogous with that of Papilio dardanus. In 
both we have a series of females, differing widely from the 
male and from each other, and each bearing a resemblance to 
a protected form belonging to another group. The ditferences 
in LZ. argia, though similar in kind, are far less striking in 
degree than those shown by P. dardanus; this corresponds 
with the greater family resemblance between the models of 
the Leuceronia as compared with those of the Papilio.” 
Mimicry amone ConeorTeRaA.—The PreEsipENT exhibited 
some Coleoptera collected in Pahang by Mr. H. C. Robinson 
and recently received at the Natural History Museum. The 
series contained some interesting cases of mimicry between 
weevils of the genus Hpisomus and Longicorns of the genus 
Niconia. Also a specimen of a Cicindelid, Collyris apicalis, 
which closely resembles the Heteromerous insect Styrax 
tricondyloides. And lastly a Longicorn of the genus Zelota, 
