Pesticidal proteins exhibiting toxic activity against Lepidopteran pest species are disclosed, and include, but are not limited to, TIC4029, TIC4029_1, and TIC4029_8. DNA constructs are provided which contain a recombinant nucleic acid sequence encoding one or more of the disclosed pesticidal proteins. Transgenic plants, plant cells, seed, and plant parts resistant to Lepidopteran infestation are provided which contain recombinant nucleic acid sequences encoding pesticidal proteins of the TIC4029 class. Methods for detecting the presence of the recombinant nucleic acid sequences or the proteins of the TIC4029 class in a biological sample, and methods of controlling Lepidopteran species pests using any of the TIC4029, TIC4029_1, and TIC4029_8 pesticidal proteins are also provided.