Observations made in late October, 1979, indicate that the wasp, Polistes fuscatus, and the locust borer, Megacyllene robiniae, serve as selective pollinators of goldenrod (Solidago canadensis). The pollination system is probably a complicated one involving mimicry between these (and perhaps other) insects and possible specialized roles in cross versus self-pollination. A differential pollination of the fall weed flora (e.g., Solidago canadensis vs. Aster spp.) was evident, and is deserving of further investigation