The neurophysiology and antennal lobe projections of olfactory receptor neurons (ORNs) within short trichoid sensilla of female Heliothis virescens F. were investigated using a combination of cut-sensillum recording and cobalt-lysine staining techniques. Behaviorally relevant odorants including intra- and inter-specific pheromonal compounds, host plant and floral volatiles were used to characterize ORNs within 184 sensilla. ORNs with varying combinations of odor response and sensitivity were grouped into 25 possible ‘sensillar types’. Projections of ORNs within sensilla (N=39) were successfully traced to individual glomeruli in the antennal lobe. Glomerular arbors of ORNs sensitive to male hairpencil components and host plant volatiles were localized to specific glomeruli. This information provides for in-depth exploration of female olfactory neurophysiology and processing, based on behaviorally relevant odors.