Diervilla (bush honeysuckle)
...
stem galls...Neolasioptera caulicola (Felt)
Adults were reared in June from stems showing no apparent enlargement. The pale yellow larvae lived just under the bark in individual cells. Host: D. lonicera. Distr.: New York.
”- Raymond J. Gagne: (1989) The plant-feeding gall midges of North America©