Many insects orient their lives with the position of the sun,. such as bees. Some insects are attracted by the heat that some. incandescent bulbs produce at night (infrared radiation).. . To really answer this question, you need to focus on an insect. group or species. They are so diverse. Fireflies use light. as a means to attract and find mates, for example.. . The bottom line may just be as simple as saying -> you have to be a "bug" to know for sure!