Byers, J.A., & Poinar, G.O., Jr. 1982. Location of insect hosts by the nematode, Neoaplectana carpocapsae, in response to temperature. Behaviour 79:1-10.The bottom two lines scratched in agar traced the outlines of a wax moth larva (about 2 cm long) that was taped on the underside of the plastic petri dish. Several hundred nematodes were released on the agar surface and after several hours of dispersal the petri dish was photographed. It is possible to see that more nematodes were swimming over the wax moth (due to metabolic heat conducting through the plastic and agar) than were swimming in slightly cooler areas. In fact, the agar above the wax moth (that was taped under the plastic petri dish) was found to be only 0.3° above ambient with an electronic thermometer.