Stinging-insect

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Dasymutilla aureola
Pacific velvet ant
Dasymutilla aureola, commonly known as the Pacific velvet ant, is a species of solitary wasp in the family Mutillidae. Despite its common name, it is not an ant but a wingless female wasp. The species is found in the western United States and is characterized by its large, square-shaped head and dense hair coloration in red, yellow, or orange. Like other velvet ants, females possess a potent sting used for defense and subduing hosts.
velvet-ant Mutillidae solitary-wasp wingless-female aposematic-coloration western-United-States Hymenoptera Dasymutilla stinging-insect parasitoid
Dasymutilla macilenta
Dasymutilla macilenta is a species of velvet ant in the family Mutillidae. Like all mutillids, females are wingless and capable of delivering a painful sting, while males possess wings. The species belongs to a large genus of velvet ants distributed primarily in North America, with many species exhibiting bright aposematic coloration warning predators of their defensive capabilities.
velvet-ant mutillidae hymenoptera solitary-wasp aposematic-coloration sexual-dimorphism wingless-female stinging-insect parasitoid north-america
Ephuta spinifera
Ephuta spinifera is a species of velvet ant (family Mutillidae), a group of solitary wasps known for their dense, velvety pubescence and aposematic coloration. Like other mutillids, females are wingless and often mistaken for ants, while males are winged. The genus Ephuta is part of the diverse North American velvet ant fauna, though specific biological details for E. spinifera remain poorly documented in published literature.
velvet-ant mutillid wingless-female solitary-wasp parasitoid aposematic stinging-insect
Polistes carolina
Fine-backed Red Paper Wasp, Red Paper Wasp, Paper Wasp
Polistes carolina is a social paper wasp native to the eastern United States, distinguished by its reddish-brown coloration and finer propodeal ridges compared to its congener P. rubiginosus. The species constructs large, exposed, umbrella-shaped paper nests and exhibits independent founding behavior with multiple foundresses establishing dominance hierarchies through behavioral conventions rather than size alone. It is an important predator of caterpillars and other insects, contributing to natural pest control in its range.
social-wasp paper-wasp independent-founding dominance-hierarchy predator biological-control stinging-insect
Polistes dominula
European Paper Wasp
Polistes dominula is a highly successful invasive social wasp native to Eurasia that has established populations across North America, South America, New Zealand, South Africa, and other regions. First detected in North America near Boston in 1978, it has become one of the most abundant wasps on the continent. The species builds small, exposed paper nests in protected locations and preys primarily on live insects, particularly caterpillars. Unlike yellowjackets, it does not scavenge for meat or sugar. Its rapid spread has been attributed to ecological flexibility, superior competitive ability, and tolerance of human-altered environments.
invasive-species social-wasp paper-wasp predator pollinator urban-ecology eusocial nest-construction biological-control thermal-biology spatial-learning vibrational-communication aposematism honest-signal overwintering diapause Polistes Vespidae Hymenoptera North-America Europe New-Zealand South-Africa South-America monarch-butterfly caterpillar-predation nest-architecture gyne foundress dominance-hierarchy climate-change-impact energetics metabolic-rate microclimate suburban-habitat anthropogenic ornamental-pest vineyard-pest fruit-damage stinging-insect venom poison-gland warning-coloration Zahavian-signal Strepsiptera parasitoid Xenos behavioral-plasticity foraging learning memory thermoregulation ectothermy endothermy solar-radiation nest-temperature brood-development colony-survival multiple-founding single-founding season-length latitude temperate Mediterranean hibernacle overwintering-costs climate-warming range-expansion competition native-species-displacement biodiversity-impact conservation management control integrated-pest-management IPM identification antennae-color facial-markings caste reproduction male female sexual-dimorphism antennae abdomen wing mandible saliva paper comb cell pedicel trophallaxis larva pupa adult worker queen subordinate dominant aggression defense threat-display sting toxicity brightness coloration predator-avoidance prey caterpillar Lepidoptera butterfly moth garden agriculture vineyard orchard urban suburban rural forest habitat-preference temperature metabolism quiescence torpor survival fitness colony nest population abundance distribution range expansion invasion establishment introduction biotic-interaction trophic-cascade herbivory-suppression plant-fitness milkweed Danaus-plexippus monarch Nelson Tasman ecosystem-impact conservation-management biological-invasion ecology behavior physiology morphology taxonomy systematics nomenclature gender-agreement Latin Christ 1791 Vespa-dominula basionym catalogue-of-life GBIF iNaturalist observation citizen-science photography illustration field-guide orange black yellow red color-pattern size wing-length body compact legs short face square triangular dark curled straight elbowed blunt pointed tip Zahavian costly-signal hunt forage nectar honeydew aphid scale-insect flower grape umbellifer fennel lovage insect meatball feed emerge chew cap hexagonal wood-fiber bark exposed open umbrella stalk ant repellent substance coat protect location eave attic tree branch vine shrub cavity bird-box bee-hive shed grave-lantern overwinter shelter protected thermal climate cold winter spring summer autumn fall season month day activity defend threat display raise tiptoe social dominance hierarchy reproductive egg lay found cooperate compete selfish passive-aggressive individual recognition facial-marking cognition mushroom-body brain intelligent artist architect navigation plasticity spatial relocating food resource dish bait training experience vibration communication signal substrate-borne abdominal wagging oscillation secretion modulation perceive react movement attention feeding inspection body-temperature ambient solar radiation metabolic cost energetic expenditure efficiency warming change impact increase invasive spread success competitive ability flexibility adaptation reaction response condition year variation productivity founding single multiple rate benefit cooperation predation parasitism vesparum stylopid stylopization parasite host infestation mite Acari wasp fly effect community decline Danaus plexippus mortality instar early late larger smaller vulnerable resistant discovery chance contact direct recruitment nestmate site cascading trophic cascade herbivory suppression plant growth production Asclepias net exclusion experiment outcome suggestion strong detrimental ecosystem strategy method development protection biodiversity region first 2016 recent established exotic congener chinensis longer comparison 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Pseudomethoca oceola
Pseudomethoca oceola is a species of velvet ant in the family Mutillidae, order Hymenoptera. Like other mutillids, females are wingless and possess a potent sting, while males are winged. The genus Pseudomethoca contains species that are often proposed as models for mimicry by checkered beetles (Cleridae), particularly in the genus Enoclerus.
Mutillidae velvet-ant Hymenoptera Pseudomethoca mimicry-model wingless-female stinging-insect
Pseudomethoca paludata
Pseudomethoca paludata is a species of velvet ant in the family Mutillidae. Velvet ants are actually flightless female wasps, not true ants. The genus Pseudomethoca contains species that are part of the diverse North American mutillid fauna. Like other mutillids, females are wingless and possess a potent sting, while males are winged and lack a functional sting.
mutillidae velvet-ant aculeata hymenoptera north-america wingless-female-wasp stinging-insect
Pseudomethoca toumeyi
Pseudomethoca toumeyi is a species of velvet ant in the family Mutillidae, order Hymenoptera. The genus Pseudomethoca is part of a diverse group of solitary wasps in which females are wingless and often exhibit aposematic coloration. Like other mutillids, this species likely possesses a powerful sting used for defense. The species is documented from a limited number of observations, with 18 records currently available.
velvet-ant mutillid wingless-female aposematic parasitoid solitary-wasp stinging-insect
Vespinae
Hornets and Yellowjackets
Vespinae is a subfamily of eusocial wasps within Vespidae, encompassing the largest and most familiar social wasps. The subfamily includes true hornets (genus Vespa), yellowjackets (genera Dolichovespula and Vespula), and the poorly known nocturnal genus Provespa from Southeast Asia. These wasps construct paper nests from chewed wood fibers and exhibit complex colonial organization with queen-worker caste differentiation. Several species have become invasive beyond their native ranges, posing significant threats to apiculture and native ecosystems.
eusocial paper-nest predator invasive agricultural-pest stinging-insect quarantine-species
Vespula maculifrons
Eastern yellowjacket, Eastern yellow jacket
Vespula maculifrons is a social wasp native to eastern North America, commonly known as the Eastern yellowjacket. It is among the most aggressive stinging insects in its range, known for vigorously defending nests and delivering painful stings with minimal provocation. Colonies are typically founded by a single queen in spring and can grow to contain thousands of workers by late summer. The species is polyandrous, with females mating with multiple males, and exhibits cooperative colony dynamics without significant reproductive conflict among patrilines.
social-wasp yellowjacket aggressive ground-nesting predator pest stinging-insect eastern-North-America polyandry annual-colony alarm-pheromone Vespinae
Vespula squamosa
southern yellowjacket
Vespula squamosa, the southern yellowjacket, is a social wasp native to eastern North America, ranging from the Great Lakes to the Atlantic coast and south through Mexico to Guatemala. The species exhibits remarkable social plasticity: most colonies are annual and headed by a single queen, but in warmer climates colonies may become perennial, persisting multiple years and reaching extreme sizes with multiple reproductive queens (polygyny). Approximately 85% of colonies begin through facultative social parasitism, with V. squamosa queens usurping nests of V. maculifrons (eastern yellowjacket) or V. vidua (widow yellowjacket). Workers are approximately 13 mm long with black and yellow striping; queens are larger and more orange in coloration. The species is expanding its range northward and is now common in the Mid-Atlantic region.
social-wasp yellowjacket social-parasite polygyny perennial-colony range-expansion stinging-insect pest-species Vespidae Hymenoptera facultative-parasitism alarm-pheromone queen-polymorphism climate-change-response