@article{fdi:010061362, title = {{A}ltruism during predation in an assassin bug}, author = {{D}ejean, {A}. and {R}evel, {M}. and {A}zemar, {F}. and {R}oux, {O}livier}, editor = {}, language = {{ENG}}, abstract = {{Z}elus annulosus is an assassin bug species mostly noted on {H}irtella physophora, a myrmecophyte specifically associated with the ant {A}llomerus decemarticulatus known to build traps on host tree twigs to ambush insect preys. {T}he {Z}. annulosus females lay egg clutches protected by a sticky substance. {T}o avoid being trapped, the first three instars of nymphs remain grouped in a clutch beneath the leaves on which they hatched, yet from time to time, they climb onto the upper side to group ambush preys. {L}ong-distance prey detection permits these bugs to capture flying or jumping insects that alight on their leaves. {L}ike some other {Z}elus species, the sticky substance of the sundew setae on their forelegs aids in prey capture. {G}roup ambushing permits early instars to capture insects that they then share or not depending on prey size and the hunger of the successful nymphs. {F}ourth and fifth instars, with greater needs, rather ambush solitarily on different host tree leaves, but attract siblings to share large preys. {C}ommunal feeding permits faster prey consumption, enabling small nymphs to return sooner to the shelter of their leaves. {B}y improving the regularity of feeding for each nymph, it likely regulates nymphal development, synchronizing molting and subsequently limiting cannibalism.}, keywords = {{C}onspecific tolerance ; {P}redation ; {P}rey sharing ; {R}eduviidae ; {Z}elus annulosus ; {GUYANE}}, booktitle = {}, journal = {{N}aturwissenschaften}, volume = {100}, numero = {10}, pages = {913--922}, ISSN = {0028-1042}, year = {2013}, DOI = {10.1007/s00114-013-1091-9}, URL = {https://www.documentation.ird.fr/hor/fdi:010061362}, }