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For Insects, Spiders & Their Kin
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eusocial, eusociality

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (E)
No Taxon eusocial, eusociality
Explanation of Names
From Greek eu, good, thorough, plus Latin sociare to associate, and -alis characterized by (1).
eusocial adjective, eusociality noun - pertaining to, or state of social organization in insects characterized by:
cooperation in care of young
social contact between generations
division of labor, with castes for reproduction, other duties, such as foraging, defense

Examples of eusocial organization occur in:
termites (Isoptera)--all species eusocial
ants (Formicidae)--all species eusocial
other insects, though not necessarily in North American groups: weevils, aphids, thrips
See Also
Print References
Gordh, A Dictionary of Entomology, p. 340 (1)
Internet References
Wikipedia: Eusociality
Rice University: Eusocial Insects
Animal Diversity Web--glossary entry for eusocial
Stockton University of New Jersey, Insect Societies--has classification of social levels
North Dakota State University: Social Insects
Works Cited
1.A Dictionary of Entomology
George Gordh, David H. Headrick. 2003. CABI Publishing.