Limb-regeneration
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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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sanguineus
Asian shore crab, Japanese shore crab
Hemigrapsus sanguineus is a small intertidal crab native to the northwestern Pacific Ocean. It has become a highly successful invasive species in North America and Europe, first detected in New Jersey in 1988. The species exhibits broad physiological tolerance, thriving across wide ranges of salinity and temperature. Its rapid population growth and competitive superiority over native crabs have raised significant ecological concerns, though habitat specificity for complex rocky shorelines may limit its impact in some systems.