Publications du Service canadien des forêts

Fenusa pusilla (Lepeletier), Birch Leafminer, and Profenusa thomsoni (Konow), Ambermarked Birch Leafminer (Hymenoptera: Tenthredinidae). 2002. Langor, D.W.; Digweed, S.C.; Spence, J.R. Pages 123-127 (Vol. Chapter 25) in P.G. Mason and J.T. Huber, editors. Biological Control Programmes in Canada, 1981-2000. CABI Publishing, New York, New York.