crop – the pouch in an ants gaster, also known as a social stomach, which stores food prior to digestion. Food stored in the crop can be shared with other ants through trophallaxis.
D
dealate – a reproductive adult ant that has shed its wings.
dimorphic – describes an ant species in which there are two distinct variations, in body size or shape, within the worker caste.
dinergate – an ant caste, in polymorphic ants, consisting of infertile females that are distinct from ergates and usually specialize in colony defense. Also known as a soldier.
eclose – the act of emerging as an adult ant from the pupa.
epigeic – living or foraging primarily above ground.
ergate – an ant caste consisting of the infertile females which form the majority of a colony’s population and perform a wide range of tasks. Also known as a worker.
ergatoid – a reproductive adult ant that does not develop wings.
F
fission – the process of a single ant colony splitting into two or more colonies.
formic acid – an acid secreted by some types of ants for attacking and defense.
G
gamergate – a mated worker ant that can function as a queen by laying fertilized eggs.
gaster – the bulbous hind part of an ant, part of the abdomen.
gyne – an adult reproductive female ant, also known as a queen.
H
harvester ant – a type of ant which collects and stores seeds.
hell ant – a type of extinct trap-jaw ant, belonging to the subfamily †Haidomyrmecinae, which had mandibles that opened vertically rather than horizontally.
hemolymph – the colorless, ant equivalent of blood.
ocellus – a simple eye, found on the heads of most queens and males, and on some workers and soldiers. Ocelli are known to assist alates in flight and navigation.
oleic acid – a chemical released by the bodies of decomposing ants.
Ophiocordyceps unilateralis – a species of parasitic fungus, also known as the zombie-ant fungus that infects ants and alters their behavior, ultimately killing the ants and spreading fungal spores.
P
pheromone – a chemical signal used by ants to communicate.
phragmosis – a defensive technique wherein ants used specially adapted body structures to block nest entrances.
polygynous – describes an ant colony that has more than one queen.
polymorphic – describes an ant species in which there is clear variation, in body size or shape, within the worker caste.
queen – an adult reproductive female ant, also known as a gyne.
R
replete – an adult worker ant with a swollen gaster that functions as a living storage vessel, filling its crop with food.
S
social stomach – the pouch in an ants gaster, also known as a crop, which stores food prior to digestion. Food stored in the social stomach can be shared with other ants through trophallaxis.
soldier – an ant caste, in polymorphic ants, consisting of infertile females that are distinct from workers and usually specialize in colony defense. Also known as a dinergate.
spiracle – a breathing hole found along the surface of an ant’s body.
stridulation – a squeaking sound, produced by an ant’s gaster, used for communication.
trap-jaw ant – a type of ant which can open its mandibles wide and snap them shut, similar to a bear trap.
trophallaxis – the transfer of food between two ants via mouth-to-mouth regurgitation of food stored in the crop.
trophic egg – a nonviable egg, produced for the purpose of consumption.
turtle ant – a type of ant, belonging to the genus Cephalotes, whose soldier caste can plug nest entrances with their large, phragmotic heads.
U
V
W
weaver ant – a type of ant, belonging to the genus Oecophylla, which weaves arboreal nests by binding leaves together with silk produced by their larvae.
worker – an ant caste consisting of the infertile females which form the majority of a colony’s population and perform a wide range of tasks. Also known as an ergate.
X
Y
Z
zombie-ant fungus – the common name for Ophiocordyceps unilateralis, a species of parasitic fungus that infects ants and alters their behavior, ultimately killing the ants and spreading fungal spores.