MASSACHUSETTS...ex Spiraea alba...1 gall with larva
...two galls on Spiraea alba...each of which was a greatly enlarged lateral bud... I found a dead larva partly protruding from the base of the larger gall, which R. J. Gagné identified as the gall inducer. Ten live larvae of the inquiline Clinodiplosis spiraeina were also found wandering in the vial...

[recorded as "Hormomyia" clarkei – in the Gagné & Jaschhof 2025 checklist this species is unplaced as to genus.]