- 
XXXViil 
There can be no doubt that the butterflies would be indis- 
tinguishable upon the wing and that they were taken as a 
single species; and the table shows that they fly together 
daily in the same locality. Furthermore, when the seven 
specimens of each species are ranged side by side the greater 
variability and the soft dyslegnic border of the whole pattern 
of xenoclea is in evident contrast with the constancy and the 
hard eulegnic edges of microclea. Finally, whatever may have 
been the experience of others, Mr. Bullock’s collection supplies 
evidence that in this locality, in May 1918, the two species 
were flying together in approximately equal numbers. 
APPARENTLY DISCRIMINATIVE ATTACKS BY BEETLE LARVAE 
UPON PAPERED BUTTERFLIES OF PROTECTED GROUPS.—Prof. 
PouLtToN said that there was some evidence of discriminative 
attack upon Mr. Bullock’s collection from W. Central Peru. 
Of four small butterflies in a single “ paper ’—2 Satyrines, 
1 Ithomiine, and 1 Nymphaline (Hresia or Phyciodes)—only 
wing-fragments remained. Omitting these from consideration 
the following two groups were especially attacked :— 
Danainae.—5 3g, 3 2 of D. plexippus L., were attacked, 
5 g, 1 2 uninjured. 
Heliconinae.—H. telesiphe Dbl.—1 attacked; H. sara 
thamar Hiibn.—1 out of 3; H. doris L. (blue form)—1 out 
of 18; H. xenoclea Hew.—3 out of 7; H. microclea Kaye— 
1 out 3 (P 
~ In marked contrast were the groups in which attacks were 
almost wanting: the Nymphalinae—2 (Ageronia and Anaea) 
out of 105 individuals; and the Pierinae—1l (Terias) out of 
27. The Papilioninae were only represented by 4 wid gee 
Swallowtails and of these 1 was attacked. 
The following groups were not attacked at all (except for 
the specimens in the single paper mentioned above) :— 
Ithomiinae (30 individuals) ; Satyrinae (31); Morphinae (14); 
Acraeinae (1); Lycaenidae (1); Erycinidae (9) ; Hesperidae (4) ; 
Moths (9). 
These facts, so far as they go, agreed with Bates’ observa- 
tion recorded in his classical paper (Trans. Linn. Soc. Lond., 
vol. xxii, 1862, p. 510): “I have noticed also that recently 
‘ 
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