Praon volucre; ANTENNAE-; WINGS-; CHEMORECEPTION-; Male EAG responses to putative sex pheromone; MATING-; Female sex pheromone role, evidence; PHEROMONES-; Female sex pheromone, male responses & preliminary identification studies; MOVEMENTS-; Male wing fanning responses to putative sex pheromone & virgin females; TAXIS-; Male olfactometer responses to putative sex pheromone & virgin females; HEMIPTERAN-HOSTS; Aphididae; Sex pheromone analysis, male responses & preliminary identification Aphididae; HYMENOPTERAN-PARASITES; Praon volucre; Parasite sex pheromone analysis Mating in the aphid parasitoid Praon volucre is mediated by a female-produced sex pheromone, which laboratory behavioral studies suggest is released from the abdomen. Gas chromatography coupled with electrophysiological and behavioral assays on males showed one area of activity in an air entrainment sample of virgin females. However, levels of pheromone production are very low and this has so far precluded its identification. none