Primitively-eusocial
Guides
Agapostemon poeyi
Poey's metallic green bee, Caribbean green sweat bee
Agapostemon poeyi is a metallic green sweat bee in the family Halictidae, endemic to the Caribbean region. The species was described by Lucas in 1857 and is one of approximately 45 species in the genus Agapostemon. Like other members of its genus, it exhibits striking metallic coloration and is a solitary or primitively social ground-nesting bee. The species contributes to pollination of native and cultivated plants in its island habitats.
Lasioglossum zephyrus
Zephyr Sweat Bee
Lasioglossum zephyrus is a small sweat bee in the family Halictidae, native to the United States and Canada. The species exhibits primitively eusocial behavior with flexible social organization—colonies may contain multiple females with overlapping generations, or females may nest solitarily. Nests are constructed in soil burrows, often in aggregations of up to 1,000 nests along south-facing stream banks. Males are slightly larger than females, with brighter metallic green coloration and redder abdomens.
Mischocyttarus
Long-waisted Paper Wasps
Mischocyttarus is the largest genus of social wasps, containing over 260 species primarily distributed in the Neotropics. It is the sole member of the tribe Mischocyttarini, distinguished from related tribes by asymmetrical tarsal lobes. These wasps construct simple, single-comb paper nests and exhibit greater social and reproductive flexibility than the related genus Polistes. A few species extend into the Nearctic region, including three in the United States and southwest Canada.
Polistes annularis
Ringed Paper Wasp, Jack Spaniard Wasp, Red Paper Wasp
Polistes annularis is a primitively eusocial paper wasp native to the eastern United States, distinguished by its large size and distinctive red-and-black coloration with a prominent yellow ring on the abdomen. The species exhibits complex social behavior including cooperative nest founding by multiple foundresses, dominance hierarchies, and unique overwintering strategies involving honey storage. Nests are constructed in aggregations under overhangs near water bodies, with colonies typically containing 500 or more cells. Unlike many temperate Polistes species, P. annularis shows relatively robust cold tolerance and has been extensively studied as a model organism for social insect behavior and kin recognition.
social-wasppaper-waspprimitively-eusocialnest-aggregationoverwinteringhoney-storageMüllerian-mimicryfoundress-associationdominance-hierarchykin-recognitioncold-tolerancemodel-organismcaterpillar-predatorriparian-habitatannual-colony-cyclequeen-successioncuticular-hydrocarbonssubgenus-AphanilopterusPolistinaeVespidaeHymenopteraeastern-United-Statesred-and-black-colorationringed-abdomenorange-antennaecliff-nestinghibernaculausurpationaltruismreproductive-competitionjuvenile-hormoneovarian-developmentmicrosatellite-markersmaternity-assignmentbehavioral-ecologysocial-insectnest-architecturepetiole-constructionfoundress-evictionworker-emergencesexual-dimorphismstructural-sex-determinationtrehalosecold-survivalant-predationparasitoidElasmus-polistisChalcoela-iphitalisbiological-controlpollinatorsting-allergenantigen-5Linnaeus-1763Fabricius-1804etymology-Greek-polistesLatin-annularis-ringedPolistes canadensis
red paper wasp, Neotropical red paper wasp
Polistes canadensis is a primitively eusocial paper wasp native to the Neotropical region, recognized as the most widely distributed American species in its genus. Colonies are founded by groups of females in spring, with a single dominant queen and multiple foundresses averaging 9.1 individuals. The species exhibits a distinctive nesting strategy: rather than reusing combs, it continuously constructs new ones—averaging about 38 per colony—moving brood rearing to fresh structures as older combs are abandoned. This multiple-comb tactic functions as a defense against infestation by tineid moth larvae, which prey on wasp pupae. Workers display age-related task division (temporal polyethism), performing 22 distinct behavioral acts throughout their lives, with foraging typically beginning around the fifth week. Males adopt alternative mating strategies: territorial defense of landmark sites on ridgelines, or patrolling when territories are scarce. The species is notable for its confrontational dominance hierarchy, with queens aggressively suppressing subordinate reproduction through physical attacks rather than pheromonal control.
Polistes fuscatus
Northern Paper Wasp, Dark Paper Wasp, Golden Paper Wasp
Polistes fuscatus is a primitively eusocial paper wasp native to eastern North America, ranging from southern Canada through the United States. It builds exposed, umbrella-shaped paper nests suspended from a single stalk, typically in semi-protected locations near human structures or in woodlands. The species exhibits a linear dominance hierarchy centered on a single dominant foundress, with remarkable individual recognition capabilities based on variable facial and abdominal markings. P. fuscatus has experienced significant population decline due to competition from the invasive European paper wasp, Polistes dominula.
Polistes metricus
Metric Paper Wasp, Metricus Paper Wasp
Polistes metricus is a primitively eusocial paper wasp native to North America, ranging from southern Ontario and Maine south to Florida and west to eastern Texas, Nebraska, and Kansas. It is distinguished by its predominantly dark ferruginous (rusty-red) coloration with black markings, yellow tarsi, and black tibiae. The species exhibits unique behavioral traits including distinctive foraging flight patterns—taking off horizontally for short trips and vertically to high altitude for long distances—and is known for nest sharing with other Polistes species and multi-season nest reuse. Colonies are typically founded solitarily by a single queen, though cooperative co-founding is increasingly observed.