The very large moth family Geometridae contains genera beginning with A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y and Z.

Those beginning with B include:

References

• Pitkin, Brian & Jenkins, Paul. "Search criteria Family: Geometridae Genus: starts with B". Butterflies and Moths of the World. Natural History Museum, London.