...Ali J. Berens; Elizabeth A. Tibbetts; Amy L. Toth ABSTRACT The specialized ability to learn and recall individuals based on distinct facial features is known in only a few, large-brained social taxa. Social paper wasps in the genus Polistes are the only insects known to possess this form...

... ( Fig. 2A ), or likely as an outcome of queen–queen competition ( Fig. 2B ). Nonetheless, JH titer increased in potential reproductives in queenless nests of both P. micans ( Fig. 3 ) and Polistes dominula ( Tibbetts and Huang, 2010 ), suggesting a conserved, context-dependent role for JH in caste...

.... Here we show a modification of the Drosophila activity monitoring (DAM) system that allowed us to measure locomotor rhythms of the honey bee, Apis mellifera (three variants; gAHB, carnica and caucasica ), and two paper wasps ( Polistes crinitus and Mischocyttarus phthisicus ). A side-by-side comparison...