Perilitus-coccinellae
Guides
Coccinella septempunctata
seven-spot ladybird, seven-spotted ladybug, seven-spotted lady beetle, C-7
Coccinella septempunctata is a predatory lady beetle native to Europe, Asia, and North Africa, now widely established in North America following intentional introduction for biological control. Adults measure 6.5–7.8 mm with distinctive red elytra bearing seven black spots. The species is among the most extensively studied coccinellids due to its importance in aphid biocontrol and its invasive success in new ranges. It completes up to five generations annually with a six-week development cycle from egg to adult.
biological-controlinvasive-speciesaphid-predatorcoccinelliddiapausereflex-bleedingparasitoid-hostvineyard-pestcultural-iconlimb-regenerationpleiotropypheromone-communicationintraguild-predationcannibalismpopulation-explosionoverwintering-aggregationfolklorenational-symbolstate-insectwine-taintHarmonia-axyridis-competitionnative-species-declineLinnaeus-1758Palearctic-nativeNearctic-introducedmultiple-generationstemperature-dependent-developmentoviposition-avoidancesex-pheromonealkaloid-defenseDinocampus-coccinellaePerilitus-coccinellaeAllothrombium-triticiumLipaphis-erysimiAphis-neriiMacrosiphum-albifrons-toxic-aphidsCompositae-pollenUmbelliferae-pollenPrunus-spinosa-nectaragricultural-biocontrolmass-rearing1976-England-heatwave-swarm2025-England-swarmIUCN-unevaluatedCITES-unlistedsubspecies-brucki-Japansubspecies-algerica-Algeriasubspecies-septempunctata-EuropeZombie-ladybug-phenomenonDcPV-virusparasitoid-manipulationhost-recoveryelevated-overwintering-siteshilltop-preference1,500-m-elevation-limit6.5–7.8-mm-length~4-mm-widthorange-yellow-eggsspindle-shaped-eggs1-mm-egg-lengthfour-larval-instarseight-day-pupal-durationsix-week-total-development1–2-year-adult-lifespan250–500-lifetime-eggspolygynandrous-matingfemale-calling-behaviormale-initiated-courtshipno-parental-careegg-cannibalismlarval-cannibalismcongeneric-egg-predationant-aphid-mutualism-exploitationbird-predationmammal-predationspider-predationcoccinellid-predationlacewing-egg-predationfourth-instar-vulnerabilityelytral-spot-size-toxicity-indicatormelanin-and-carotenoid-pigmentationsoft-elytra-emergencepigmentation-development-post-emergencefat-reserve-accumulation-pre-diapausespring-nectar-feeding-post-diapauseaphid-honeydew-consumptionant-attendance-exploitationlupin-aphid-avoidancetoxic-alkaloid-sequestrationN-oxide-coccinellineprecoccinelline2-isopropyl-3-methoxy-pyrazineoverwintering-pheromoneprey-location-chemical-cuesaphid-alarm-pheromone-responseplant-volatile-response-to-aphid-infestationolfactory-oviposition-site-selectionconspecific-egg-avoidanceegg-cluster-laying10–30-egg-clustersenvironmental-egg-load-excessoffspring-mortality-tradeoffaphid-population-trackingseasonal-diet-shiftpollen-feeding-survivalnon-aphid-food-reproductive-failuredevelopment-rate-adult-weight-correlationdaily-prey-consumption-growth-rate-correlationlongevity-fecundity-correlationinvasive-population-morphometric-divergenceecological-success-regeneration-correlationpleiotropic-gene-hypothesisdirect-selection-hypothesislimb-damage-raritypredation-escape-survivalpupal-developmental-gene-expressioncascading-gene-effectsinvasive-North-American-LRI-20%-higherCzech-Egypt-population-LRI-divergenceScymninae-untestedChilocorinae-untestedPsylloborini-untested1916-California-introduction-attempt1956–1971-intentional-introductions1973-New-Jersey-establishmentwaste-dump-accidental-introductionglobal-breeding-programsartificial-diet-researchrape-pollen-beetle-honey-shrimp-dietnatural-diet-preferenceegg-larva-separation-rearingcontrolled-environment-rearing80–90%-urban-England-Harmonia-dominanceHesperomyces-virescens-fungussexual-transmissionoverwintering-aggregation-transmissionfield-cross-species-transmission-absencelineage-differentiation-hypothesis48,000-UK-Ladybird-Survey-recordsD.-coccinellae-low-Harmonia-prevalenceevolutionary-dynamics-observation-opportunityBraconidae-parasitoidovipositor-egg-depositionDcPV-virus-depositionlarval-internal-parasitismhost-nervous-system-migrationpupal-stage-host-paralysiscocoon-spinning-beneath-hosttwitching-defense-mimicrytoxic-alkaloid-predator-deterrencevolatile-chemical-parasitoid-attractionone-third-host-recoveryfemale-preferential-targetinghost-sterilizationagricultural-system-impact-concerncommunity-garden-observationsColorado-Springs-populationsFlagstaff-meadow-observationsvial-emergence-difficultynuisance-autumn-home-invasionweatherstripping-preventionscreen-repaircrack-sealingvacuum-releasewoodpile-relocationpale-color-attractionwhite-gray-yellow-building-preferencehigh-ground-overwintering-preferencestorage-area-height-preferenceLost-Ladybug-Project-participationnative-species-decline-documentation9-spotted-raritypolished-lady-beetle-observationDoberman-bite-comparisontickle-bite-characterizationno-skin-breakcuriosity-not-aggressionreflex-bleeding-stain-riskno-indoor-breedingfat-reserve-winter-survivalno-fabric-feedingodor-emission-defensefabric-staining-potentialautumn-swarming-behaviorsunny-warm-day-activitychild-fright-responsecool-wet-summer-population-reductionCOVID-garden-filmingpea-aphid-predation-videoalfalfa-legume-crop-pest50%-speed-predation-footagemass-rearing-facilityKanpur-India-studiesquantitative-consumption-measurementfirst-instar-reduced-voracityinstar-progression-feeding-increaseL.-erysimi-B.-brassicae-preypredatory-efficiency-quantificationbiocontrol-laboratory-methodologyinvasion-ecology-evolution-congressmorphometric-comparative-studynative-introduced-range-divergenceGBIF-exact-matchNCBI-taxonomy-verificationi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trifasciata perplexa
American Three-banded Lady Beetle
Coccinella trifasciata perplexa is a subspecies of three-banded lady beetle in the family Coccinellidae. It occurs in North America and has been documented as a host for the parasitoid wasp Perilitus coccinellae in Ontario, where approximately 7% of adult beetles were parasitized in field studies. The subspecies is part of a broader species complex with distribution across multiple continents.