A TECHNIQUE FOR SAMPLING FLYING INSECTS

I describe a procedure for sampling flying insects. Using binoculars, a stopwatch, and a hand-held counter, an observer counts insects passi ng through a measurable focal volume for a set time. No insect identif ication skills are needed. I tested the accuracy and repeatability of the procedure under controlled conditions and found that with known li mitations, it is a reliable way to sample flying insect abundance. I u sed the procedure to describe daily activity pattern of flying insects using a clearing adjacent to a neotropical lowland forest reserve. Wh ile flycatcher and flying insect activity patterns were not strongly c orrelated, similarities in activity were noted.