368 
Psyche 
[September 
Fig. 3. A L. subcaeruleus larva on its silk sheet. Note the slime trails 
and the areas where the larva fed recently (arrow). 
spores at other times. Although pupae, pupal skins, fragments of 
silken sheets, and (occasionally) dead larvae were found under ap- 
parently dormant bracket sporophores, living larvae were found only 
under active brackets. Sporophores on the undersurfaces of fallen 
logs sometimes had large “dormant” areas adjacent to active areas, 
and larvae were always under only the active areas. 
The silken sheets under which the larvae lived often contained 
large numbers of tiny specks barely visible to the naked eye. When 
pieces of sheet which had specks in them were placed on a sterile 
nutrient medium (Wort agar), fungus grew, but no fungus grew 
when the same medium was inoculated with pieces of speckless sheet 
spun by captive larvae on surfaces which lacked fruiting fungi. Thus 
the specks which were common in sheets in nature were probably 
fungal spores. 
Undisturbed larvae under sheets of silk were observed in only 
four activities: resting motionless, moving across the sheet, eating 
holes in the sheet, and laying silk. Larvae spent the majority of 
their time both day and night motionless. 
The larvae could move forward and backward, in each case by 
