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• Disholcaspis prehensa

  clasping twig gall wasp

  Disholcaspis prehensa is a gall-inducing cynipid wasp native to California that induces distinctive galls on scrub oak and leather oak. The species exhibits heterogony, alternating between sexual and asexual generations that produce two morphologically different gall types. The asexual generation forms conspicuous mushroom-shaped twig galls with clasping bases, while the sexual generation produces small, hidden bud galls.

  gall-waspcynipidheterogonyparthenogenesisoak-gallCalifornia-endemicant-mutualismDisholcaspisCynipidaeHymenopteraQuercusinduced-plant-structurephloem-sap-exudationbiological-mutualismseasonal-dimorphismsexual-dimorphismgall-dimorphismagamic-generationsexual-generationclasping-twig-gallbud-galltwig-gallnative-California-speciesscrub-oakleather-oakparasitoid-defenseant-plant-interactioninsect-plant-interactionplant-manipulationevolution-of-asexualityWeld-1957Zootaxa-4859molecular-systematicshost-plant-specificityCynipinioak-woodlandchaparralinsect-gallgall-morphologygall-colorationsun-exposure-effectslarval-chamberemergence-timingspring-emergencelate-winter-emergencegall-developmentoviposition-behavioregg-laying-in-budsegg-laying-in-twigsfemale-only-generationwingless-femalewinged-sexual-generationgall-size-dimorphismgall-shape-dimorphismhidden-gallexposed-gallgall-wasp-life-cyclecynipid-biologygall-wasp-taxonomygall-wasp-identificationgall-wasp-ecologyinsect-plant-coevolutionplant-growth-manipulationhormone-mediated-gall-inductionvenom-glandaccessory-glandsecretory-structuresgall-induction-mechanismgall-chemistryphloem-saphoneydewant-attractionant-protectionparasitoid-waspnatural-enemy-defenseindirect-defensemutualistic-interactiontrophic-cascadecommunity-ecologyspecies-interactionecosystem-engineerhabitat-modificationfood-webinsect-diversityCalifornia-biodiversityendemic-insectregional-endemismoak-specialistplant-specialistmonophagousoligophagoushost-rangehost-plant-evolutiongall-wasp-radiationadaptive-radiationevolutionary-innovationreproductive-strategyasexual-reproductionthelytokyarrhenotokysex-determinationdevelopmental-biologyinsect-morphologyinsect-anatomyfemale-morphologyovipositorstingeregg-injectionplant-tissue-manipulationcell-proliferationplant-hormoneauxincytokiningene-expressiontranscriptomicsproteomicsvenom-compositionbiochemistryphysiologyethologybehavioral-ecologypopulation-biologypopulation-dynamicsseasonalityphenologyclimate-effectsmicrohabitatniche-specializationconservation-biologyimperiled-habitatoak-woodland-conservationchaparral-conservationfire-ecologysuccessiondisturbancehabitat-fragmentationurbanizationagricultural-conversioninvasive-speciesclimate-changerange-shiftphenological-shiftcitizen-scienceiNaturalistobservation-dataspecies-distributionoccurrence-recordsbiodiversity-informaticstaxonomic-revisionspecies-descriptiontype-specimenmolecular-dataDNA-barcodingphylogeneticssystematicsevolutionary-historybiogeographydispersalvicariancespeciationspecies-conceptscryptic-speciesspecies-complexmorphological-variationgeographic-variationphenotypic-plasticitygenetic-variationpopulation-geneticsconservation-geneticsrestoration-ecologyhabitat-restorationmanaged-relocationassisted-migrationex-situ-conservationin-situ-conservationprotected-areanatural-reservestate-parknational-parkwilderness-areabiosphere-reserveUNESCOIUCNred-listspecies-assessmentconservation-statusdata-deficientresearch-priorityknowledge-gapfuture-researchgall-wasp-venomgall-wasp-glandsecretory-evolutiongall-wasp-phylogenyCynipidae-evolutionHymenoptera-phylogenyinsect-evolutiongall-evolutionplant-insect-interaction-evolutioncoevolutionary-arms-racemutualism-evolutiondefense-evolutioncounter-defenseenemy-free-spaceenemy-escapeecological-releaseadaptive-peakfitness-landscapeevolutionary-constraintevolutionary-trade-offlife-history-evolutionreproductive-allocationfecunditysurvivaldevelopment-timegeneration-timevoltinismunivoltinebivoltinemultivoltinediapauseoverwinteringcold-hardinessstress-tolerancedesiccation-resistancestarvation-resistanceimmune-responseparasitoid-resistancepathogen-resistancesymbiontmicrobiomegut-microbiotaendosymbiontWolbachiaRickettsiaCardiniumSpiroplasmabacterial-symbiontfungal-symbiontviral-symbiontmutualistic-microbeparasitic-microbecommensal-microbemicrobial-communitymetagenomicsmicrobial-ecologyhost-microbe-interactionimmune-systeminnate-immunityacquired-immunityhumoral-immunitycellular-immunityantimicrobial-peptidereactive-oxygen-speciesnitric-oxidemelanizationencapsulationnodulationphagocytosisautophagyapoptosisprogrammed-cell-deathstress-responseheat-shock-proteinoxidative-stresshypoxiaanoxiametabolic-raterespirationenergy-budgetnutrient-allocationlipid-storageglycogen-storageprotein-storageamino-acid-metabolismcarbohydrate-metabolismlipid-metabolismnitrogen-metabolismexcretionosmoregulationion-transportwater-balancecuticleintegumentsclerotizationpigmentationcolor-patternstructural-coloriridescencebioluminescencephotoreceptorvisioncompound-eyeocellusantennaolfactiongustationchemoreceptionmechanoreceptionthermoreceptionhygroreceptionproprioceptionneurobiologybrainganglionnerveneuronsynapseneurotransmitterhormonepheromoneallomonekairomonesemiochemicalchemical-ecologycommunicationsignalingmate-choicesexual-selectionsperm-competitioncryptic-female-choicemating-systemmating-behaviorcourtshipcopulationinseminationfertilizationovipositionegg-layingparental-carematernal-effectpaternal-effectepigeneticsgen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• Nomotettix cristatus

  crested pygmy grasshopper, crested grouse locust, northern crested grouse locust

  Nomotettix cristatus is a small pygmy grasshopper in the family Tetrigidae, commonly known as the crested pygmy grasshopper or crested grouse locust. It is one of approximately 35 Nearctic species of Tetrigidae. The species exhibits three recognized subspecies with distinct geographic distributions across North America. Like other members of its family, it is characterized by an elongated pronotum that extends over the abdomen, a trait distinguishing pygmy grasshoppers from typical grasshoppers in Acrididae.

  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