panies. ge one Fens has on seen by the writer in close 
proximity to the food plant—this was a female feeding on 
owers near a group of Avreolaria grandiflora. In the valleys 
ot far away, both sexes were seen. This suggests that the 
fareiics, on emerging from the pupae, descend into the valleys 
for shelter from the wind or for food. There mating occurs, 
and the females return to the hillsides to lay their eggs. 
This procedure should facilitate cross-breeding between the 
different colonies and thus aid in the dissemination of the species. 
The large colonies of butterflies described by many authors as 
inhabitating marshy places in the eastern part of the country 
remain in the neighborhood of the food plant, so breeding prob- 
ably takes place between members of the same local group 
year after year. 
The foregoing observations suggest interesting Pe ae 
for further study of the life history of this butterfly. Why th 
female selects only one plant in this region on which to lay her 
eggs, although the caterpillars will accept other related plants; 
why the caterpillar’s diet is more restricted before hibernation 
than afterward; why they live in a nest until spring and then 
forsake it, while tiie see distantly related species also hiber- 
the country are some of the problems that still await solution. 
