I twisted apart a few more spruce cones today. I did not find any more with worms, but I did find one that had a long skinny black beetle looking insect. Perhaps the worm I noticed previously is a larval stage of the insect I saw today.
It was a sunny day that was fairly warm by February standards. I decided to check the flower beds along the south facing buildings around campus. I found many crocus blooming in front of NPH. I suspect they may have been in bloom before today, but I had not checked to see.