some Rest-attitudes of Butterflies. 115 
I have no manuscript note, but remember well that 
before Mr. Millar mentioned the fact of anacardiw having a 
proclivity for such trees, I saw one take refuge in a shrub, 
or small tree, having large glaucous leaves; and I am 
almost sure that I beat another specimen out of the same 
kind of tree, but I failed to see the insect at rest.’ 
Writing of Colias philodice, Godt., Mr. W. H. Edwards 
says: “On marigolds and brilliant single zinnias they 
delight to pasture, for they have a keen sense of colour. 
I have known one of them alight on an amethyst in a 
lady’s ring, after hovering about its owner so persistently 
as to attract attention, and it rested some seconds.” * 
Mr. 8. H. Scudder quotes the following interesting 
observations on the same butterfly, Hurymus philodice, 
Godt. (called in America “the sulphur”). 
“Dr. Minot once observed that when searching for its 
honied food the butterfly most frequently alighted on 
yellow flowers; and Dr. Packard has recorded that in a 
field where white asters and yellow golden rods were 
abundant the yellow sulphur butterfly visited the flowers 
of the golden rod much oftener than those of the aster, while 
the opposite was the case with Pieris rapx.” t Again, in 
another place, he says, “and Jenner Weir has noticed how 
the white butterflies settled on the variegated leaves in 
his garden.” t¢ 
The preference shown by the two butterflies for golden 
rod and asters respectively is interesting. These genera, 
highly characteristic of North America, are closely allied 
Composite. On the other hand, P. rape was introduced into 
the country in 1860 or thereabouts. 
Dr. Dixey has kindly placed at my disposal the notes of 
a number of his observations on common English butter- 
flies which have a bearing upon the point under discussion, 
1897, July 12, Mortehoe. 8S. semele; flight more 
rapid than that of H. janira; it is also more apt 
to settle. When settling, chooses if possible a bit 
of grey rock or bare pathway. Sits with antennze 
expanded and projecting forwards, body raised 
somewhat on legs. At first settling, eye-spot of 
fore-wing generally just appears ; then by a definite 
* qn of North America, vol. ii, 1897, sub philodice (not 
paged). 
{ Butterflies of New England, 1889, vol. ii, p. 1124. 
t Ibid., vol. ii, p. 1102. 
