Figure 2: Galls of T. styraci and N. monzeni.
From: An insect-induced novel plant phenotype for sustaining social life in a closed system
(a) A mature gall of T. styraci formed on S. obassia. (b) Openings located at the projection tips on the underside of a gall of T. styraci. (c) An inside view of a gall of T. styraci. Arrows indicate honeydew droplets accumulated in the gall. (d) Gall cleaning behavior of a second-instar soldier nymph of T. styraci, pushing a honeydew droplet with its head. (e) A mature gall of N. monzeni formed on D. racemosum. (f) An inside view of an immature gall of N. monzeni. (g) N. monzeni individuals placed on an artificial diet. Arrows indicate honeydew droplets excreted by the aphids. (h) An inside view of an immature gall of N. monzeni. Arrows indicate honeydew droplets.
