Celtis-laevigata

Guides

• Agrilus macer

  Large Hackberry Agrilus

  Agrilus macer is a metallic wood-boring beetle in the family Buprestidae, primarily associated with sugarberry (Celtis laevigata) in the southeastern United States. The species is considered a secondary pest that attacks dying or declining host trees at high densities, with egg masses deposited on trunks, branches, and exposed roots. Despite intensive colonization of weakened hosts, it does not appear to transmit harmful fungal pathogens or act as a primary cause of tree mortality.

  BuprestidaeCeltis-laevigatasugarberrysecondary-pestsoutheastern-USAwood-boring-beetleforest-entomology

• Pachypsylla celtidisumbilicus

  Hackberry Disc Gall Psyllid

  Pachypsylla celtidisumbilicus is a species of hackberry psyllid that produces distinctive disc-shaped galls on hackberry leaves (Celtis spp.). Adults emerge in fall and seek shelter to overwinter, often becoming household nuisances when they congregate on building exteriors. The species is one of at least seven Pachypsylla species associated with hackberry in North America, each producing a characteristic gall morphology.

  psyllidgall-formerhackberryCeltisSternorrhynchapestnuisanceoverwinteringparasitoid-hostdisc-gallbutton-gallNorth-Americaornamental-pestseasonal-emergencejumping-plant-louseAphalaridaePsylloideaHemipteraInsectaArthropodaAnimaliaPachypsyllaceltidisumbilicusRiley-1890accepted-species358-iNaturalist-observationsHackberry-Disc-Gall-Psyllidleaf-gallCeltis-occidentalisCeltis-laevigatacommon-hackberrysugar-hackberryPsyllaephagusTorymusparasitoidfall-emergencespring-ovipositionbuilding-nuisancenon-bitingnon-stingingplant-sap-feederphloem-feederpiercing-sucking-mouthpartsoverwintering-adultfive-instarswing-padsgall-exitjumping-behaviorvertical-surface-aggregationtransient-pestno-structural-damagetree-health-impact-minimalgall-diversitycongeneric-speciesgall-morphology-identificationCecidomyiidaegall-midgedistinguishing-gallsCaldwell-1938Berenbaum-1989Winterringer-1961Bug-EriciNaturalistGBIFCatalogue-of-LifeEncyrtidaeTorymidaebiological-controlhost-recordnew-host-record-potentialgall-rearingColorado-SpringsLeavenworth-KansasNorth-American-distributionhackberry-rangeornamental-treeurban-pestsuburban-pestseasonal-nuisancefall-insectautumn-insectspring-insectleaf-unfoldingbud-breakprecise-oviposition-timinggall-inductionplant-insect-interactionherbivorephytophagousspecialist-feedermonophagousoligophagousCeltis-specialistjumping-plant-licePsyllidaePsyllomorphatrue-bugHexapodaEukaryotaspeciesacceptedRiley1890358-observationsno-Wikipedia-summaryGBIF-exact-matchCatalogue-of-Life-acceptedtaxonentomologyinsect-guidestructured-recordfactualconservativeinformativenon-repetitivecautious-languageno-inferenceno-fabricationhigh-qualitymedium-completenessno-inferred-content