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Wingspan 10.0-13.0 mm. Lacking raised scales. Forewings primarily black and white with prominent a discocellular spot. Small beige patch in subbasal area but lacking reddish scales throughout wing. Male genitalia: Uncus with slight constriction. Valve with a prominent apical projection and accessory spine. Vesica with a large cornutus and many smaller cornutii. Female genitalia: Sclerotized ductus bursae with a longitudinal membranous region. Pheromones: Blend of Z9 E11-14Ac 100 + Z9 E12-14 Ac 1. Additional components may be present.

Adults emerge and lay eggs under scales of new cones or under bark. Larvae will feed internally on cones, needles, twigs and under the bark of the host. Feeding sites can be recognized by the accumulation of webbing and frass around the entrance hole or around needles and twigs forming a loose shelter. Pupation occurs in host. Population numbers may reach infestation levels, especially in seed orchard environments.