The life cycle of the moth is not yet fully known nor is it known how long the female cones of A.obtusa take to mature. It may reasonably be conjectured that, like A. robusta (sect. 6 ·1), they take 1· 5 years. One may guess that eggs are laid about Julyv within young soft cones (though none were seen in a single cone examined) and do not hatch until the next year, after the seeds have reached mature size