The thousands of wasp species in the Vespidae family are divided into solitary or social categories. The social wasps live in a community to build nests, raise young, find food, and defend the nests.

Numbers of workers of Vespula pensylvanica (Saussure) (western yellowjacket) and V. atropilosa (Sladen) trapped with heptyl butyrate in Washington increased with greater release of the attractant from ...

78, No. 1, Mar., 1995 Pheromonal Mediation of Alarm in the Eas... Pheromonal Mediation of Alarm in the Eastern Yellowjacket (Hymenoptera: Vespidae) This is the metadata section. Skip to content viewer ...