Ep. 238 : Looking At Two Unusual Galls

This passed weekend I was able to go out tracking with folks at Wiijindamaan where I once again notice the Poplar Vagabond Aphid Gall. And last week, I was having another conversation with folks about the Spruce Pineapple Adelgid Gall. Galls persist through the Winter and into Spring when many of the insects which have created them will begin to emerge.

Since now is the time to be keeping an eye out for the insect emergences, I figured I would share my excitement for these two galls. Not only are they beautiful and unusual, but they also highlight my growing feelings on what I call “biology 202”, a deep appreciation for the complexity of life beyond our cultural assumptions. It’ll make more sense when you hear it.

To Learn More :
Petiolegall Aphids : Swollen or disfigured leaves of poplars (pdf)
First record of antipredator behavior in the gall-forming aphid Mordwilkoja vagabunda
Poplar Vagabond Gall Aphid (Aphididae: Mordwilkoja) video on youtube.com by Carl Barrentine
InfluentialPoints.com entry on Mordwilkoja vagabunda
Life History and Gall Development of Mordwilkoja vagabunda (Homoptera: Aphidae) on Populus deltoides
Life History and Gall Development of Mordwilkoja vagabunda (Homoptera: Aphidae) on Populus deltoides. Part II—Gall Development
The Insects and Arachnids of Canada part 22 : The Genera of the Aphids of Canada - Homoptera : Aphidoidea and Phylloxeroidea : pg 472 (pdf)
Influential Points entry on Adelges abietis
INTRA- AND INTER-CROWN DISTRIBUTION OF THE EASTERN SPRUCE GALL ADELGID, ADELGES ABIETIS (L.), ON YOUNG WHITE SPRUCE