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 | |
|---|---|---|---|---|---|---|---|
| Popillia lewisi | scarab beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
| Prays endocarpa | citrus pock caterpillar | arthropod | butterfly, moth | not present | low | USDA Plant/Pest | |
| 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) | |
| Protopulvinaria pyriformis | pyriform scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Pseudacysta perseae | avocado lace bug | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Psila rosae | carrot rust fly | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. B) | |
| Pterandrus spp. | fruit flies | arthropod | fly | limited | high | USDA Plant/Pest | |
| Pulvinaria psidii | green shield scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Pulvinaria urbicola | urban soft scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Quadraspidiotus ostreaeformis | European fruit scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
| Raoiella indica | Red Palm Mite | arthropod | mite | not present | high | CDFA (reg. A) | |
| Rhabdoscelus obscurus | New Guinea sugarcane weevil | arthropod | beetle | not present | moderate | USDA Plant/Pest | |
| 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 pomonella | apple maggot | arthropod | fly | widespread | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Rhopalomyzus poae | grass aphid | arthropod | scale, aphid | widespread | n/a (already in CA) | CDFA (reg. B) | |
| Rhyacionia buoliana | European pine shoot moth | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Rhyacionia frustrana | Nantucket pine tip moth | arthropod | butterfly, moth | limited | n/a (already in CA) | CDFA (reg. B) | |
| Rhynchophorus ferrugineus | red palm weevil | arthropod | beetle | not present | high | 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) | |
| Scapteriscus borellii | southern mole cricket | arthropod | grasshopper, cricket | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Singhiella simplex | Fig whitefly | arthropod | scale, aphid | not present | moderate | FL Dept. of Ag | |
| 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) | |
| Siteroptes graminum | grass mite | arthropod | mite | limited | n/a (already in CA) | CDFA (reg. B) | |
| Sitodiplosis mosellana | wheat midge | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. A) | |
| Sminthurus viridus | lucerne flea | arthropod | springtail | not present | low | USDA Plant/Pest | |
| 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 ananas | pineapple tarsonemid | arthropod | mite | limited | n/a (already in CA) | CDFA (reg. B) | |
| Steneotarsonemus spinki | panicle rice mite | arthropod | mite | not present | high | CDFA (reg. A) | |
| Stenolechia bathrodyas | juniper gelechiid | arthropod | butterfly, moth | limited | n/a (already in CA) | CDFA (reg. B) | |
| Stenoma catenifer | avocado seed moth | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
| Sternochetus mangiferae | mango seed weevil | arthropod | beetle | not present | moderate | USDA Plant/Pest | |
| Syngrapha epigaea | inscribed looper moth | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
| Tetraleurodes spp. | redbanded whitefly | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Tetranychus evansi | red spider mite | arthropod | mite | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Tipula oleracea | common crane fly | arthropod | fly | not present | low | CDFA (reg. B) | |
| Tipula paludosa | European crane fly | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Toumeyella liriodendri | tuliptree scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Tranes internatus | macrozamia borer | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
| 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) | |
| Tropilaelaps clareae | honeybee mite | arthropod | mite | not present | high | USDA Plant/Pest | |
| 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) | |
| Unaspis euonymi | euonymus scale | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. B) | |
| Varroa jacobsoni | varroa mite | arthropod | mite | widespread | n/a (already in CA) | USDA Plant/Pest | |
| 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) | |
| Xyleborus pfeili | ambrosia beetle | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
| Xyleborus spp. | ambrosia beetles | arthropod | beetle | not present | moderate | USDA Plant/Pest |
