CISAC has compiled the list below of over 1,700 species known to be invasive in California or a potential threat for introduction to the state. Please use the comment form below to let us know about: taxa that should be added or removed; species information that you would change; and species that you think should be a high priority for having a scorecard completed (choose Review Scorecards to see the list of scorecards already drafted). Make sure to click Save. Previous comments are displayed at the bottom of the page.
Download Species List (.csv) (to open in a Spreadsheet program)
This data download is provided to aid in the review of the draft invasive species list. We discourage other use of this data until it has been revised and finalized.
| Scientific Name | Common Name | Type | Subtype | Extent | Risk of Introduction |
First Source |
|
|---|---|---|---|---|---|---|---|
| Pinnaspis strachani | lesser snow scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Pissodes nemorensis | eastern pine weevil | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Planococcus lilacinus | coffee mealybug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Plathypena scabra | green cloverworm | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Poliaspis cycadis | Poliaspis cycad scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Popillia japonica | Japanese beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Popillia lewisi | scarab beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Prostephanus truncatus | larger grain borer | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Protaetia fusca | mango flower beetle | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Protaetia orientalis | oriental flower beetle | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Pseudaonidia paeoniae | peony scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Pseudaulacaspis cockerelli | magnolia white scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. A) | |
| Pseudaulacaspis pentagona | white peach scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Pseudococcus cryptus | citriculus mealybug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Pseudococcus dendrobiorum | Orchid mealybug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Pseudococcus elisae | banana mealybug | arthropod | scale, aphid | not present | low | CDFA (reg. A) | |
| Pseudococcus importatus | imported mealybug | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Pseudoparlatoria parlatoriodes | false paralatoria scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Quadraspidiotus ostreaeformis | European fruit scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Radopholus similis | Burrowing Nematode | invertebrate | nematode | not present | moderate | CDFA (reg. A) | |
| Raoiella indica | Red Palm Mite | arthropod | mite | not present | high | CDFA (reg. A) | |
| Rhagoletis boycei | walnut husk fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhagoletis cerasi | European cherry fruit fly | arthropod | fly | not present | low | CDFA (reg. A) | |
| Rhagoletis cingulata | cherry fruit fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhagoletis fausta | black cherry fruit fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhagoletis indifferens | western cherry fruit fly | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. A) | |
| Rhagoletis juglandis | walnut husk fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhagoletis mendax | blueberry maggot | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhagoletis spp. | exotic fruit fly | arthropod | fly | unknown | moderate | CDFA (reg. A) | |
| Rhagoletis suavis | walnut husk fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Rhizotrogus majalis | European chafer | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Rhyacionia buoliana | European pine shoot moth | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Rhynchophorus ferrugineus | red palm weevil | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Rotylenchulus reniformis | Reniform Nematode | invertebrate | nematode | not present | moderate | CDFA (reg. A) | |
| Saccharicoccus sacchari | pink sugarcane mealybug | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Sannina uroceriformis | persimmon borer | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Scotinophara lurida | rice stinkbug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Scrobipalpa ocellatella | surgarbeet crown borer | arthropod | butterfly, moth | not present | low | CDFA (reg. A) | |
| Selenaspidus articulatus | rufous scale | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Selenothrips rubrocinctus | redbanded thrips | arthropod | thrips | not present | high | CDFA (reg. A) | |
| Sesamia cretica | durra stalk borer | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Sinoxylon anale | dunnage beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Sirex noctilio | sirex woodwasp | arthropod | bee, wasp | not present | moderate | CDFA (reg. A) | |
| Sitodiplosis mosellana | wheat midge | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. A) | |
| Sogatodes orizicola | rice delphacid | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Solenopsis geminata | tropical fire ant | arthropod | bee, wasp | not present | high | CDFA (reg. A) | |
| Solenopsis invicta | red imported fire ant | arthropod | bee, wasp | limited | n/a (already in CA) | CDFA (reg. A) | |
| Solenopsis richteri X Solenopsis invicta hybrid | hybrid fire ant | arthropod | bee, wasp | not present | high | CDFA (reg. A) | |
| Solenopsis saevissima | red imported fire ant | arthropod | bee, wasp | not present | moderate | CDFA (reg. A) | |
| Sphenophorus maidis | maize billbug | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Spodoptera dolichos | armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera eridania | southern armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera exempta | nutgrass armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera latifascia | lateral lined armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera littoralis | Egyptian cottonworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera mauritia | lawn armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Spodoptera sunia | Costa Rican armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Steneotarsonemus spinki | panicle rice mite | arthropod | mite | not present | high | CDFA (reg. A) | |
| Stenoma catenifer | avocado seed moth | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Syngrapha epigaea | inscribed looper moth | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Thaumatotibia leucotreta | False codling moth | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Thrips angusticeps | cabbage thrips | arthropod | thrips | not present | high | CDFA (reg. A) | |
| Thrips florum | banana flower thrips | arthropod | thrips | not present | high | CDFA (reg. A) | |
| Thrips palmi | melon thrips | arthropod | thrips | not present | high | CDFA (reg. A) | |
| Thyridopteryx ephemeraeformis | bagworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Tildenia gudmannella | pepper flower bud moth | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Tischeria marginata | moth | arthropod | butterfly, moth | not present | low | CDFA (reg. A) | |
| Tomicus piniperda | pine shoot beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Toxoptera citricida | Brown citrus aphid | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Toxotrypana curvicauda | papaya fruit fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Trialeurodes floridensis | avocado whitefly | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Trioza erytreae | African citrus psyllid | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. A) | |
| Trioza tripunctata | blackberry psyllid | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Trogoderma granarium | khapra beetle | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Typophorus nigritus viridicyaneus | sweetpotato leaf beetle | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Unaspis citri | citrus snow scale | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Velataspis dentata | dentate scale | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
| Xyleborinus andrewesi | Asian ambrosia beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Xyleborus glabratus | Redbay ambrosia beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Zeiraphera canadensis | spruce budworm | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Zeuzera pyrina | leopard moth | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Zonosemata electa | pepper maggot | arthropod | fly | not present | moderate | CDFA (reg. A) | |
| Zophodia convolutella | gooseberry fruitworm | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Zygogramma exclamationis | sunflower beetle | arthropod | beetle | not present | moderate | CDFA (reg. A) | |
| Begomovirus (GEM2) | Tomato Yellow Leaf Curl Virus | disease | virus | limited | n/a (already in CA) | CDFA (reg. A) | |
| Planococcus minor (Maskell) | Passionvine mealybug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Bactrocera cucurbitae | melon fly | arthropod | fly | not present | low | CDFA (reg. A) | |
| Acanalonia conica | green coneheaded planthopper | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Acanthococcus azaleae | azalea bark scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Aclerda tokionis | grass scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Aethina tumida | small hive beetle | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
| Aleuroclava aucubae | aucuba whitefly | arthropod | scale, aphid | widespread | n/a (already in CA) | CDFA (reg. B) | |
| Aleurotubus jelinekii | viburnum whitefly | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Aleyrodes proletella | cabbage whitefly | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Aonidiella aurantii | California red scale | arthropod | scale, aphid | widespread | n/a (already in CA) | CDFA (reg. B) | |
| Araecerus coffeae | coffee bean weevil | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
| Atrichonotus taeniatulus | small lucerne weevil | arthropod | beetle | not present | high | CDFA (reg. B) | |
| Bagrada hilaris | Bagrada bug | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Carausius morosus | Indian walking stick | arthropod | stick insect | limited | n/a (already in CA) | CDFA (reg. B) | |
| Cataenococcus olivaceus | yucca mealybug | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) |
