1. Annila, E. 1975. Effect of felling date of trees on the attack density and flight activity ofTrypodendron lineatum (Oliv.) (Col., Scolytidae).Commun. Inst. For. Fenn. 86:1?16.
2. Bauer, J., andVité, J.P. 1975. Host selection byTrypodendron lineatum.Naturwissenschaften 62:539.
3. Borden, J.H., Hunt, D.W.A., Miller, D.R., andSlessor, K.N. 1986. Orientation in forest Coleoptera: An uncertain outcome of responses by individual beetles to variable stimuli, pp. 97?109,in T.L. Payne, M.C. Birch, and C.E J. Kennedy (eds.). Mechanisms in Insect Olfaction. Clarendon Press, Oxford.
4. Byers, I.A., Lanne, B.S., Löfqvist, J., Schlyter, F., andBergström, G. 1985. Olfactory recognition of host-tree susceptibility by pine shoot beetles.Naturwissenschaften 72:324?326.
5. Cade, S.C., Hrutfiord, B.F., andGara, R.I. 1970. Identification of a primary attractant forCnathotrichus sulcatus isolated from western hemlock logs.J. Econ. Entomol. 63:1014?1015.